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Sterilizer Maintenance Manual-TANZO Touch series

Woson Medical Instrument Co., Ltd

TechnicalPublications

TANZO TouchMaintenance ManualSMM-B-02

Technical DocumentAll rights reserved© 2015 By Woson Medical Instrument Co.,Ltd.


CataloguePart I. Basic Introduction........................................................................................................... 1

1. Electric Diagram......................................................................................................................1

2. Wiring...................................................................................................................................... 2

3. Pipeline Diagram.....................................................................................................................3

4. Temperature and Pressure Table..............................................................................................4

5. Attentions while Adjusting...................................................................................................... 4

6. Normal Cycling Status............................................................................................................ 4

7. Programs and Working Condition of Sterilizer.......................................................................5

Part II. Error Codes and Solutions............................................................................................. 7

Error Codes List.......................................................................................................................... 8

1. E01: Heat up Slow...................................................................................................................9

2. E02: Over Pressure................................................................................................................13

3. E03: Door Loose in Cycle.....................................................................................................13

4. E04: Low Pressure................................................................................................................ 14

5. E05: Release Slow.................................................................................................................15

6. E06: Vacuum Slow................................................................................................................ 16

7. E7: Atmospheric Pressure Low.............................................................................................16

8. E08: Micro-switch Broken before Close the Door............................................................... 17

9. E09: Micro-switch Broken after Close the Door.................................................................. 18

10. E10: Preheat Speed Slow.................................................................................................... 18

11. E11: Over Temperature........................................................................................................19

12. E12: Temperature Low........................................................................................................20

13. E13: Auto-filling Abnormal................................................................................................ 20

14. E14: Inner Sensors not Match............................................................................................. 21

15. E17: Water Quality Control Fail......................................................................................... 23

16. E23: Pressure not Match Temperature................................................................................24

17. E24: No Sufficient Water (not open)...................................................................................25

18. E25: Air Filter Dirty............................................................................................................ 25

19. E27: Leakage.......................................................................................................................27

20. E31: Temp. Sensor 1 Abnormal.......................................................................................... 27


22. E33:Temp. Sensor 3 Abnormal........................................................................................... 29


24. E51: Temp. Sensor 1 Output High...................................................................................... 30





28. E71: Pressure Sensor Output Low...................................................................................... 32

29. E72: Pressure Sensor Output High......................................................................................33

30. E99: Test Temp. not Reach 134℃.......................................................................................33

31. Abnormal Exit..................................................................................................................... 33

32. Sudden Power Outages........................................................................................................33

Part III. Other malfunctions......................................................................................................35

1. LCD Screen No Display........................................................................................................35

2. Fail to Enter Cycle.................................................................................................................36

3. Fail to Open the Door............................................................................................................38

4. Water Level Sensor Out of Order..........................................................................................38

5. Drainage/Adding Connection Leakage.................................................................................39

6. Water Pump Fail to Work...................................................................................................... 40

7. Bad Drying Effect................................................................................................................. 40

Appendix 1: Initial Fine Adjustment......................................................................................... 42

Appendix 2: User Defined Program......................................................................................... 43

Appendix 3: Vacuum Test.......................................................................................................... 44

Appendix 4: Helix & B/D Test...................................................................................................45

Appendix 5: Pipe Rinse............................................................................................................. 47

Appendix 6: Parts Condition.....................................................................................................48

Appendix 7: Maintenance Information..................................................................................... 49

Appendix 8: Error Code............................................................................................................50

Appendix 9: PT1000 Indexing Table.........................................................................................51


SMM-B-02| Page of 511

Part I. Basic Introduction

1. Electric Diagram

号线 (红)号线 (红)

(红) (红)

(黑) (黑)

号线 (黑)号线 (黑)

蒸汽发生器蒸汽发生器

锅壁加热圈锅壁加热圈

真空泵真空泵

加水泵加水泵

白

绿

白

绿

风

扇

红

黑

黑

黄黄蓝蓝

常开阀常开阀

二位三通阀二位三通阀

进水阀进水阀

回气阀回气阀

黄黄白

红

变压器AC12V输出变压器AC12V输出

变压器AC21V输出变压器AC21V输出变压器变压器

AC220V输出AC220V输出

加热棒加热棒

黄

黄动加水泵动加水泵

棕棕

变压器AC8V输出变压器AC8V输出

打印机打印机

- +5V+5V

蓝蓝黑黑白

LCD接口LCD接口

键盘键盘打印机打印机

微动开关传感器微动开关传感器白

白

黄

蓝

蓝

黄蓝蓝

废水箱传感器废水箱传感器

侧液位低水位传感器侧液位低水位传感器

侧液位高水位传感器侧液位高水位传感器

外温度外温度

传感器传感器

蒸汽发生器蒸汽发生器

温度传感器温度传感器

内温度内温度

传感器传感器

2A自恢复保险丝（电线对接）2A自恢复保险丝（电线对接）



2. Wiring

Wiring Classificationa) The high voltage area (AC 220V): water pump wire, vacuum pump wire, power switch

wire, fuse wire, steam generator wire, heating ring wire and elementary transformer wire

(red).

AttentionDO NOT touch the high voltage area without any secure

instruments when powered on.

b) The low voltage area: transformer second wire (green or blue).

c) Signal and low voltage wire: temperature sensor wire, control panel connecting wire,

electromagnetic valve wire, printer connecting wire, door switch connecting wire and

water lever sensor connecting wire.

AttentionThe wires which belong to the SAME category can be bundled together;

otherwise, it will bring or enlarge EMI.



3. Pipeline Diagram

AF

EV4

RV

P1

EV2

EV3

VP

DWT UWTWP1

CC

SM

WP2R3

R2

R1

TS1

EV1

AF Air Filter WP1 Main Water Pump

UMT The Used Water Tank WP2 Add Water Pump

DWT The Distilled Water Tank SM Steam Maker

EV1 Air Exhausting Valve VP Vacuum Pump

EV2 Chamber Water Supply Valve RV Relief Valve

EV3 Vacuum Valve R1 Distilled Water Drain Port

EV4 Air Return Valve R2 Used Water Drain Port

P1 Pressure Sensor R3 Water Adding Port

P2 Pressure Sensor TS1 Temperature Sensor

CC Condensate Collector



4. Temperature and Pressure Table

The temperature of saturated steam (pure steam) is of certain degree under different pressure,

here is the comparison table between temperature (inside chamber) and pressure.

Looking into the relationship between temperature and pressure when adjusting or working

normally, you will find under normal circumstances, the lower the pressure, the larger the

deviation between temperature and pressure. For instance, when pressure is 0.0bar, the

temperature is about 97℃. But when pressure rises to 2.1bar, the temperature will be 134℃.

Small deviation (±1℃) is allowed under low-pressure.

5. Attentions while Adjusting

a. Each technician who tests or inspects the machine should know the working principle

very well;

b. All technicians should know exactly the positions of high and low voltage parts to avoid

electroshock;

c. Make sure the door is closed completely before running cycles;

d. When alarm appears, please record the error code, pressure and temperature before

turning off the machine;

6. Normal Cycling Status

a. No alarming during cycle;

b. At the beginning of sterilization cycle, when pressure is 2.1bar, temperature is 134℃

(±1℃); when pressure is 1.1bar, temperature is 121℃ (±1℃);

c. During the sterilization cycle, the range of pressure and temperature is 2.0~2.2bar,

Pressure（Bar） Temperature（℃）

0.0 100

0.2 105

0.7 115

1.1 121

1.7 130

2.1 134



133~135℃, or 1.0~1.2bar, 120~123℃;

d. The temperature in the chamber is 120~123℃, or 133~136℃;

e. The program could be finished completely without any pipeline leakage and can be

restarted.

7. Programs and Working Condition of Sterilizer

The engineer must know clearly the working process and status display of each cycle.

1) Sterilization Process:

(bar)2.0

0TimeP

ress

ure

Start End

1.8

-0.8-1.0

1-2 Pre-heating 2-3 Pre-vacuum3-4 Sterilizing 4-5 Air-discharging5-6 Drying 6-7 End of air returning1-7 Entire cycle

Run a pre-vacuum program: Run three pre-vacuum procedures:



2) Sterilization Process Interface Introduction:

No. Description

1 Sterilization procedure2 Sterilization temperature3 Sterilization time4 Vacuum number5 Drying time

6 Sterilization curve7 Sterilization time and status

8 The total time of the program run

9 Sterilization real-time temperature

10 Sterilization real-time pressure11 Tank logo12 Waste water tank logo13 Water quality Monitoring logo14 Door status logo

15 Printer logo16 USB logo

17 Standby time holding logo

18 No. sterilization times

19 Sterilization that day the real time

20 Operating instructions

3

2

4

5

6 7

8

910

11

12 13 14 15 16

17

18

20

19

1



Part II. Error Codes and Solutions

The sterilizer will show error information when it breaks down.



Error Codes List

No. Alarm Code Error Information

1 E01 Heat up Slow

2 E02 Over Pressure

3 E03 Door Loose in Cycle

4 E04 Low Pressure

5 E05 Release Slow

6 E06 Vacuum Slow

7 E07 Atmospheric Pressure Low

8 E08 Micro-switch Broken before Close the Door

9 E09 Micro-switch Broken after Close the Door

10 E10 Preheat Speed Slow

11 E11 Over Temperature

12 E12 Temperature Low

13 E13 Auto-filling Abnormal

14 E14 Inner Sensors not Match

15 E17 Water Quality Control Fail

16 E23 Pressure not Match Temperature

17 E24 No Sufficient Water

18 E25 Air Filter Dirty

19 E27 Leakage

20 E31 Temp. Senor 1 Abnormal

21 E32 Temp. Sensor 2 Abnormal



24 E51 Temp. Sensor 1 Output High




28 E71 Pressure Sensor Output Low

29 E72 Pressure Sensor Output High

30 E99 Test temp. not Reach 134℃



1. E01: Heat up Slow

Problem Description:

The pressure cannot reach the set value after 30mins of heating and pressure program.

Problem Reason:

1. Water vapor appears from the cover fitted or a sound of “hissing” during heating and

pressure program, it means door gasket leaked: because too much steam during cycles,

result in leakage due to the door gasket is ejected, out of sharp, weakened sealing effect;

2. Weaken sealing effect of the safety valve bolt due to shaking or other possible reasons;

3. Weaken heating effect of the heating ring due to the port connected the heating ring and

PCB is loose, short circuit or broken;

4. Vacuum pump fails to work (no sound) during vacuum condition, result in pressure

cannot match with temperature when heating stage, and then enter adjustment condition

more than 10mins: 1. The wire of vacuum pump is loose, or broken; 2. The capacity of

vacuum pump is broken; 3. The vacuum valve(black line) is blocked or fails to open;

5. The water supply valve is blocked or broken, fails to supply water for steam generator;

6. The water pump is broken, fails to supply enough water for steam generator;

7. The air return valve is broken or leaked result in pipeline leakage during pressure stage;

8. The normal-open valve is leaked or broken result in pipeline leakage during pressure

stage;

9. The vacuum valve is leaked or broken result in pipeline leakage during pressure stage;

10. The temperature of steam generator less than 160degree due to the heating stick of steam

generator is broken, result in the water pump fails to supply water.

11. The steam generator is blocked or weakened heating effect, and fails to supply enough

steam for chamber, due to using non-designated water or non-scheduled cleaning

program.

Solution:

1. Check if the door gasket is normal, or change it according to the steps as below.

Door Gasket



Tool: a plain screw driver without sharp head is needed.

2. Check if the relief valve is leaked during pressure stage. If yes, tighten the switch on the

valve, or change the valve.

3. Forced quit the cycle if the sterilizer fails to enter vacuuming state after 15mins. Then

wear the gloves to touch the surface of inside chamber. If no heat or less heat, check if the

lines which connect heating ring and PCB are normal. Or change the heating ring.

Connecting Port(Heating ring-PCB)

Connecting Line(Heating ring-Heating protector)

1. Hold verge of the gasket by one handsoftly, and insert the screwdriver into thegap between gasket and door, take out theseal slowly.

2. Pull out the whole seal slowly once tookone part of the gasket out. Then check andclean the gasket and the groove of thegasket, replace the gasket if any damage.

3. Equablyinsert4 spots into groove firstlywhen fix the clean gasket, and then insertother parts. After that, press the gasketequably by hand.

4. Check the door gasket carefully, andinsert the possible ectropion of the gasketinto groove by screwdriver carefully.

Relief valve is in the bottom of the back.

To screw the switch counter means open,

and screw clockwise means close.



4. 1) Check if the connecting lines from vacuum pump are connected well. Or replace the

capacitor, even the vacuum pump.

Connecting Line Capacitor

2) Check if the core of 3-way valve (Black line)is blocked, and then clean it. Or replace

the valve.

3-way Valve

3-way Valve(Black line) Exploded View(3-way Valve)

5. Abnormal sound of “Quack, Quack”, due to the water pump works without water during

heating and pressure stage, clean the water supply valve or replace it.

Water Supply Valve(yellow line) in the

left side of sterilizer



6. Check by multimeter if the water pump is normal. Or replace it.

Water Pump(Green line) in the left side of

sterilizer

7. Check and clean the core of air return valve. Or replace the valve.

Exploded View (Air Return Valve)

8. Check and clean the core of normal-open valve. Or replace the valve.

Normal-open Valve (Blue line)

Normal-open Valve Exploded View (Normal-open Valve)

9. Check if the core of 3-way valve (Black line) is blocked, and then clean it. Or replace the

valve.

10. Use multimeter to check if the heating stick of steam generator is normal. Or replace it.



11. Water leaked from the bottom of sterilizer during heating stage, the silicone tube between

water pump and steam generator is broken due to steam generator blocked, replace the

steam generator.

2. E02: Over Pressure


The pressure in the chamber is larger than the set value during heating or sterilization stage.

Problem Reason:

1. The temperature sensor(T2) covered;

2. Inconsistent voltage;

3. Fail to release due to the normal-open valve blocked;

4. The pressure sensor is broken.

Solution:

1. Check if T2 is covered by wrap;

2. Check if the local voltage is normal;

3. Open the normal-open valve, check and clean it. Or replace the valve;

4. Replace the PCB.

3. E03: Door Loose in Cycle


Ensure the door and door handle are closed completely before cycling.

Problem Reasons:

1. Not close the door completely due to not tighten the door handle or large pressure in the

chamber;

2. Forced open the door during cycle;

3. The micro switch is loosed;

4. The connecting line which connects micro switch and PCB is loosed.



Solution:

1. Ensure the door and door handle are closed completely before cycling;

Door Handle

2. Do not open the door during cycle;

3. Check if the micro switch is loosed. Or tighten it;

Micro Switch4. Check if the connecting line (White line) of micro switch is loosed;

Micro Switch line

4. E04: Low Pressure


The pressure in the chamber is less than the set value during heating or sterilization stage.

Problem Reasons:

1. Too many articles to disinfect;

2. Inconsistent voltage, less than 190V;

3. Fail to release due to the normal-open valve blocked;

4. The pressure sensor is broken.



Solution:

1. Reduce the articles;


3. Open the normal-open valve, check and clean it according to E02. Or replace the valve.

5. E05: Release Slow


Not reach 20Kpa in 20mins of vacuum stage (30mins for first vacuum stage), and then end all

cycles, not reach 20Kpa in 25mins.

Problem Reasons:

1. The chamber filter is blocked;

2. The air release valve is blocked, or broken;

3. The connecting ports which connect air release valve and PCB is loosed;

4. No electrical reaction on the connecting ports;

5. 3-1 of 3-way valve is blocked;

6. Condenser is blocked.

Solution:

1. Clean or replace the chamber filer;

Air Filter in the Chamber Exploded View

2. Check and clean the core of normal-open valve. Or replace the valve;

3. Keep connection status of air release valve and PCB;

4. Use multimeter to check if there is electrical reaction on the connecting ports (air release

valve and PCB). Or replace PCB;

5. Check if the core of 3-way valve (Black line) is blocked, and then clean it. Or replace it;

6. Check if the Condenser is blocked, replace it if fail to sweep.

Condenser



6. E06: Vacuum Slow


Not reach -0.4bar in 5mins of vacuum stage, not reach -0.6bar in leakage test.

Problem Reasons:

1. The vacuum pump is broken;

2. Continual steam due to too many wet articles;

3. The normal-open valve blocked;

4. 2-1 of 3-way valve is blocked.

Solution:

1. Replace the vacuum pump;

2. Turn off and cool down the sterilizer, reduce the articles;

3. Check and clean the core of normal-open valve. Or replace the valve;

4. Check if the core of 3-way valve (Black line) is blocked, and then clean it. Or replace the

valve.

7. E7: Atmospheric Pressure Low

Problem Description: the atmospheric pressure is less than 0.7bar.

Problem Reasons: high altitude.

Solution:

1) Enter the adjustment interface: press “MENU” to enter “SYSTEM SET”, and then

choose “User Message”;



2) Then input the password “8257” to adjust the altitude.

3) Re-start the machine to check the altitude value.

8. E08: Micro-switch Broken before Close the Door

Problem Description: the detection for micro switch is illogical.

Problem Reason: the micro-switch is broken.

Solution: enter the setting interface, input “1111” to enter initial adjustment, choose “manual”

and save, and then restart the sterilizer.



9. E09: Micro-switch Broken after Close the Door

Problem Description: the running of motor is wrong.

Problem Reason:

1. The micro-swift broken;

2. The motor, pressure switch or over current protector is broken.

Solution: enter the setting interface, input “1111” to enter initial adjustment, choose “manual”

and save, and then restart the sterilizer.

10. E10: Preheat Speed Slow

Problem Description: the temperature of chamber is less than 100 degree and the

temperature of steam generator is less than 110 degree after 20mins of preheat program.

Problem Reason:

1. The heating ring of the chamber no heat or less heat due to the connecting ports is loosed,

short circuit or broken;

2. The heating stick of steam generator is broken, result in heat is not enough.



Solution:

1. Forced quit the cycle after shows E10, and then wear the gloves to touch the surface of

inside chamber. If no heat or less heat, check if the lines which connect heating ring and

PCB are normal. Or, change the heating ring;

2. Use multimeter to check if the heating stick of steam generator is normal. Or replace it.

Heating Stick

11. E11: Over Temperature


The temperature is more 2 degree than the theoretical value, or more than the max set value

during heating or sterilization process.

Problem Reason:

1. Inconsistent voltage, more than 220V;


3. The temperature sensor in the chamber (T2) is broken.

Solution:



3. Use multimeter to check if the sensor (T2) is normal according to the PT1000, if

abnormal, change the sensor.

Temperature sensor in the chamber (T2)



12. E12: Temperature Low


The temperature is less 2 degree than the theoretical value, or more than the min set value

during heating or sterilization process.

Problem Reason:



3. The temperature sensor in the chamber (T2) is broken.

Solution:



3. Use multimeter to check if the sensor (T2) is normal according to the PT1000, if

abnormal, change the sensor.

13. E13: Auto-filling Abnormal


1. The low water level sensor does not float after auto-adding water more than 3mins;

2. The high water level sensor does not float after auto-adding water more than 4.5mins.

Problem Reason:

1. The low water level sensor broken;

2. The high water level sensor broken;

3. The ports of water level sensor on PCB is loosed;

4. The low water level sensor cannot float due to external force;

5. Less water.

Solution:

1. Check if the water level sensor is normal. It is normal to hear a sound of “dip, dip” when

toggle the high water level sensor. Or change it;

High Water Level Sensor

Low Water Level Sensor



2. Check if the ports of the water level sensor on PCB is connected well;

3. Check if external force, such as the high water level sensor may interfere the floated low

water level sensor;

4. Check if the water is enough.

14. E14: Inner Sensors not Match

Problem Description: it only fits for these machines which are with two temp. sensors.

When enter the phase of constant temp. & pressure, the value difference between T1(real

value) and T2(test value) is more than 2℃.

Problem Reason:

1. Initial setup does not adjust well;

2. The inner sensor is broken;

3. Not saturated steam in chamber, with obvious temperature difference.

High Water Level Sensor

Low Water Level Sensor

T1 inner sensor(real temperature)

T2 inner sensor(test temperature)



Solution:

1. Initial Fine Adjustment



2) Then input the password “1111” to “factory set”. Check the “Inn temp.” item to

adjust the inner temperature you need, then store it;

T1 inner sensor position T2 inner sensor position



3) Return to the standby interface to check if the problem has been solved.

2. Use multimeter to check if every sensor is normal. Or replace the sensor.

3. Obvious temperature difference in chamber, it is wrong with the PCB program, replace it.

15. E17: Water Quality Control Fail

Problem Description: conductivity is more than 60us/cm.

Problem Reason: use unclear water.

Solution: use distilled water only.



2) Then input the password “1111” to “factory set”. Check the “Water Check” item to

adjust the value you need, then store it;

Water Quality Sensor;

Two Electrical Conductivity Bars



16. E23: Pressure not Match Temperature

Problem Reason:

1. Too much steam during cycles, result in the door gasket leakage due to the door gasket is

ejected, out of sharp, weakened sealing effect;

2. The water pump is broken, fails to supply enough water for steam generator;

3. The steam generator is blocked or weakened heating effect, fail to supply enough steam

for the chamber, result in the pressure and temperature on the display panel do not rise or

rise unobviously, due to using non-designated water or non-scheduled cleaning program;

Constantly add water to steam generator;

4. The steam generator protector is broken or adjusted improperly, result in low temperature

of the steam generator;

5. Less heat from the heating ring, results in less steam in the chamber and water pump do

not work;

6. The solenoid valve or pipeline is blocked;

7. The air release valve cannot close after releasing.

Solution:

1. Reset or replace the door gasket according to E01;

2. Check if the water pump is broken or shortage. Or replace it;

3. Check and clean the steam generator. Or replace it;

4. Check if the adjusted lever of the protector is loosed. Tight the screw if loosed, or replace

the protector;



Steam Generator Protector Tight the screw

5. Use multimeter to check if the heating ring of the steam generator is normal. If the value

is abnormal, replace the heating ring;

6. Check and clean the core of the solenoid valve, or replace the valve; check if the pipeline

is leaked, or replace the pipe.

17. E24: No Sufficient Water (not open)

18. E25: Air Filter Dirty


The chamber pressure cannot back to normal after finishing sterilization.

Problem Reason:

1. Older machines: the air return valve or the air filter is blocked;

2. New machines: 1) Initial setup does not reach ZERO state in standby condition; 2)

User’s altitude differs from factory setting.

Solution:

1. Check and clean the air filter;

Air Filter

2. Check and clean the core of the air return valve. Or replace the valve;

3. Setting standby pressure to ZERO state:



4) Keep the door open, and then turn on the power, check the pressure;

Note If the pressure is Negative, then go to SYSTEM SET and adjust it to 0KPA.



6) Then input the password “1111” to “factory set”. Check the “pressure” item, 10

times than the shown figure (e.g.: set it +10KPA if shows -1.0KPA), then store it;

7) Return to the standby interface to check if the pressure value is 0KPA or positive



value.

19. E27: Leakage


Leakage is more than 0.13bar during vacuum test.

Problem Reason:

1. The vacuum pump is broken;

2. Too many articles;

3. The normal-open valve is blocked;

4. 2-1 of 3-way valve is blocked;

5. The pipelines or connecting ports are leaked.

Solution:

1. Check and replace the vacuum pump;


3. Check and clean the core of the normal-open valve. Or replace the valve;

4. Check and clean the core of the 3-way valve. Or replace the valve;

5. Check the pipelines and connecting ports.

20. E31: Temp. Sensor 1 Abnormal


The inner temperature sensor (T2) cannot sense or bad sense the temperature.

Problem Reason:

1. Unstable voltage;

2. The connecting port of the sensor on the PCB is loosed;

3. The sensor is short circuit, or broken.

Solution:

1. Use multimeter to check if the local voltage is normal. Restart the machine if stable

voltage; change the power supply or connect voltage regulator if unstable voltage;

2. Check if the port of the sensor on the PCB is connected well;



Temperature Sensor (2#)

3. Use multimeter to check if the sensor is normal. If the value is abnormal, replace the

sensor.

Inner Temperature Sensor



The outer temperature sensor (T3) cannot sense or bad sense the temperature.

Problem Reason:




Solution:



2. Check if the port of the sensor on the chamber heating ring is connected well;

Temperature Sensor (3#)




sensor.

22. E33:Temp. Sensor 3 Abnormal


The steam generator temperature sensor (T1) cannot sense or bad sense the temperature.

Steam Generator

Problem Reason:


2. The connecting port of the sensor on the steam generator is loosed;


Solution:



2. Check if the port of the sensor on the steam generator chamber is connected well;

Temperature Sensor (1#)3. Check if the sensor is tight, coat thermal grease for the sensor if loosed. Then use

multimeter to check if the sensor is normal. If the value is abnormal, replace the sensor.





The inner test temperature sensor (T4) cannot sense or bad sense the temperature.

Temperature Sensor (4# test sensor)

Problem Reason:


2. Too many articles;



Solution:



2. Reduce the article;

3. Check if the port of the sensor on the PCB is connected well;


sensor.

24. E51: Temp. Sensor 1 Output High


The temperature in the chamber is higher than 140degree.

Problem Reason:



3. The inner temperature sensor is broken;

4. The PCB is broken.



Solution:

1. Use multimeter to check if the local voltage is normal;


3. Check the sensor according to E31;

4. Replace the PCB.



The temperature of the chamber is higher than 140degree.

Problem Reason:



3. The outer temperature sensor is broken;


Solution:




4. Check if the chamber protector is normal;

Chamber Protector

5. Replace the PCB.



The temperature of steam generator is higher than 200degree.

Problem Reason:





3. The steam generator sensor is broken;

4. The steam generator protector is broken;


Solution:




4. Check the adjusted lever of the steam generator protector is loosed. Tight the screw if

loosed, or replace the protector;

5. Replace the PCB.



The temperature in the chamber is higher than 145degree.

Problem Reason:

1. The inner temperature sensor is broken;


Solution:


2. Replace the PCB.

28. E71: Pressure Sensor Output Low

Problem Description: No output, or low output.

Problem Reason: The sensor is broken.

Solution: Replace the sensor.

Pressure Sensor



29. E72: Pressure Sensor Output High

Problem Description: Keep outputting or over output.

Problem Reason: The sensor is broken.

Solution: Replace the sensor.

30. E99: Test Temp. not Reach 134℃

Problem Description: the temp. of T2 and T4 (inner sensor) are not reach 134℃.

Problem Reason:

1. The sensor is broken;


Solution:


2. Replace the PCB.

31. Abnormal Exit

When abnormal exit, press button for 3secs to force quit, the interface shows as below,

press or to choose the program, then press to confirm.

32. Sudden Power Outages

The interface shows as below after the power comes back from sudden power cut, when the

Attention Do not open the door if the pressure in the chamber is not “0 BAR”.



pressure in the chamber falls to 0bar, then opens the door and restarts the machine.

Attention Do not open the door if the pressure in the chamber is not “0 BAR”.



Part III. Other malfunctions

1. LCD Screen No Display


The screen cannot display when turn on the power switch (the light of the buttons is

illuminated).

Problem Reasons:

1. The fuse is burned;

2. The connecting line between LCD screen and PCB is loosed;

3. LCD screen PCB is broken;

4. The power supplier is unstable;

5. Transformer is burned.

Solution:

1. Check if the power switch is light after turn on the power. And then check if the fuse left

the power switch is burned, or replace the fuse;

2. Check if the connecting line is fixed well;

26P Line

3. A sound of “dip, dip” when open/close the door, and then no display on LCD screen,

replace the LCD screen PCB;

4. Messy code or Discontinuous flicker, it means power supply is unstable, to change the

power supply or connect voltage regulator if unstable voltage;

5. Power switch lighting, power indicator on the main PCB extinguished, means no power

input, to replace the transformer.



2. Fail to Enter Cycle


Press START button, the program cannot be started.

Problem Reasons:

1. LCD displays: Used water tank is full;

2. LCD displays: Distilled water tank is empty;

3. The illuminated means the door do not closed completely; or the micro switch is

broken;



4. Connection problem: the buttons are out of order without any sound;


Solution:

1. Drain water from used water tank;

Note: Drained water temperature should be lower than 70C. If higher than that, please

check if Fan is in good condition.

2. Fill distilled water automatically or manually;

Automatically: Plug the water pipe with adding connection, and then keep long press

the button;

Manually: add the water till hear a sound of “di, di”, and then press the button to

enter MENU.

Note: If water short alarms during sterilization cycle, don’t’ worry, water inside is

enough to complete full cycle. But fill sufficient water before next cycle.

3. Check if door handle is locked properly. And check the door micro-switch by pressing

down. Check if the micro-switch is normal if door locking icon doesn’t stop flashing, or

replace it;

4. Check if the connecting line between the screen and main PCB is fixed well;

5. Replace Master PCB.



3. Fail to Open the Door

Problem Reasons:

1. Negative pressure in the chamber due to air cannot return completely after sterilization;

2. If leave the door closed after sterilization, it is a sealed space in the chamber. When the

hot chamber air colds down, it creates negative pressure, result in the door locked.

Caution Do not close the door when finish the sterilization cycle.

Solution:

1. Turn on power switch, the air return valve will open, and then try to open the door;

2. Find relief valve at rear cover, open it counter-clockwise to make the air return to the

chamber.

Caution If the door cannot open frequently, clean or replace the air return valve.

4. Water Level Sensor Out of Order


1. When the clean water tank is empty and after filling water, Icon sparkles;

2. When the used water tank is full and after draining water, Icon sparkles.

Problem Reason:

1. The high or low water level sensor out of order (Clean water tank);

2. Water level sensor out of order (Used water tank).

Solution:

1. Check if the water level sensor is normal. It is normal to hear a sound of “dip, dip” when

toggle the high/low water level sensor. Or change it;



2. Make sure that all sensor cables are well connected with Master PCB;

3. Lift the float of the water level sensor in the used tank up to the top, you will see the no

WASTER WATER OVER alarm on the screen. Or replace the single water level sensor.

Float of Single Water Level Sensor

5. Drainage/Adding Connection Leakage

Problem Reason:

1. Drainage or adding connection is blocked;

2. The valve core seal of connection is broken.

Solutions:

1. Check and clean the connections. Or replace it;

Used water out Distilled water in Distilled water out

2. Check if the corn seal is normal. Or replace it.

Drainage Connection Valve Core



6. Water Pump Fail to Work


The water pump does not work after press the automatic filling button.

Problem Reason:

1. The water pump falls off from the yellow connecting line;

2. The water pump connecting line falls off from the main PCB;

3. No voltage of output terminal on the PCB;

4. The water pump is broken.

Solutions:

1. Ensure the water pump is connected well with yellow wire;

2. Check if the connecting line between the water pump and PCB is connected well;

Water Pump Connecting Ports for Water Pump

3. After pressing the automatic filling button, use multimeter to check if the output terminal

is normal. Or fix this port or replace the main PCB;

4. Replace the water pump.

7. Bad Drying Effect


Small amount of water left inside the chamber after sterilization.

Problem Reasons:

1. The inner filter is blocked or not close to the bottom of chamber;

2. Placed improperly, such as when the front of sterilizer is lower than the rear, much water

will stay in the front.

Solutions:

1. Clean or replace the chamber filer;



Air Filter in the Chamber Exploded View

Attention Clean the filter timely is the guarantee to perform drying well.

2. Adjust the cushion to keep the machine in the level.



Appendix 1: Initial Fine Adjustment

The parameters of autoclaves are set before leaving factory and no need to be adjusted undernormal circumstances. But due to different terrain and altitude which cause difference ofatmospheric pressure, temperature and pressure cannot reach sterilization state(differ about1℃-3℃), and keep automatically adjusting to not enter into sterilization state. Do the initialtemperature and pressure fine adjustment program to change this condition.

1. Enter the adjustment interface: press “MENU” to enter “SYSTEM SET”, and then


2. Then input the password “1111” to “factory set”. Check the “pressure” item, 10 times

than the shown figure (e.g.: set it +10KPA if shows -1.0KPA), then store it;

3. Return to the standby interface to check if the problem has been solved.



Appendix 2: User Defined Program

Under the sterilization programs to enter the custom program, and then select desired figures

and save.

Sterilization Temperature: 105C; 121C; 134C

Sterilization Time:

1. 105C Range: 30 - 90min;

2. 121C Range: 20 - 60min;

3. 134C Range: 04 - 40min.

Drying Time: 0 - 40min

Vacuum Times: 0/1/2/3 times



Appendix 3: Vacuum Test

The pressure could reach -0.8bar.It could eliminate the cool air out of the chamber, and

discharge out the water leave in the pipeline. The main purposes are testing vacuuming

efficiency and pipeline seal ability.

NOTE: Test it only when the machine is cold down.

Under maintenance interface to select vacuum test, press button to start the test.

Whole test time is 20mins, in which 05mins of vacuuming; 05mins of stability; 10mins of

keeping.

NOTE: P3 should not larger then P2 by 0.13Bar, refer to E27.



Appendix 4: Helix & B/D Test

Helix Test

The main purpose is to identify if autoclave is in accordance with B Class sterilizationstandard.

1. Test Tools:

GKE-Steri-Recordand Helix pipe

Helix Test Paper

2. Put the unused helix paper into the helix tube, lock it and ensure sealed well.

Insert the test paper to the test pipe head. Set back the pipe head

3. Put the helix tube into the chamber, and start the Helix Test – 134C, 3.5mins sterilization,3times vacuum, 8mins drying. If the color changes to black, it means pass.

Before After



B&D Test

B&D test is to show the effect of pre-vacuum and exhausting air of Class B autoclave. It is

only for test if there is cold air in the chamber during cycle, not for the sterilization results.

Put test bag in the chamber, and start the test – 134C, 3.5mins sterilization, 3times vacuum,

8mins drying. If the color changes to black, it means pass.

B&D Test Bag Test Paper between Test Bags Test Paper

Before After



Appendix 5: Pipe Rinse

Under the maintenance interface to select pipe rinse, and then start it.

1. Clean impurity left in the autoclave chamber after rinsing;

2. Repeat pipe rinse if long –term using or necessary.

Note:

1. Advised to rinse pipes per 6 month;

2. Make sure the inner chamber filter is well mounted, and clean it after rinsing pipes.



Appendix 6: Parts Condition

1. Under Test & Maintenance interface, select Parts Condition;

2. Choose the parts need to diagnose, confirm it and select “Start” to test this part.



Appendix 7: Maintenance Information

1. Under Test & Maintenance interface, select Maintenance Information;

2. Choose the parts need to clean, confirm it and select “Start” to test this part.



Appendix 8: Error Code

1. Under Test & Maintenance interface, select Error Code;

2. Choose Code No. and refer to solutions listed.



Appendix 9: PT1000 Indexing Table

Corresponding Table of Temperature and Value of Resistance

Temp. 0 1 2 3 4 5 6 7 8 9

℃ Value of Resistance（Ω）

-50 842.7 848.7 834.8 830.8 826.9 822.9 818.9 815.0 968.7 807.0

-40 882.2 878.3 878.3 870.4 866.4 862.5 858.5 854.6 929.5 846.7

-30 921.6 917.7 913.7 909.8 905.9 901.9 898.0 894.0 890.1 886.2

-20 960.9 956.9 953.0 949.1 945.2 941.2 937.3 933.4 929.5 925.5

-10 1000.0 996.1 992.2 988.3 984.4 980.4 976.5 972.6 968.7 964.8

0 1000.0 1003.9 1007.8 1011.7 1015.6 1019.5 1023.4 1027.3 1031.2 1035.1

10 1039.0 1042.9 1046.8 1050.7 1054.6 1058.5 1062.4 1066.3 1070.2 1074.0

20 1077.9 1081.8 1085.7 1089.6 1093.5 1097.3 1101.2 1105.1 1109.0 1112.9

30 1116.7 1120.6 1124.5 1128.3 1132.2 1136.1 1140.0 1143.8 1147.7 1151.5

40 1155.4 1159.3 1163.1 1167.0 1170.8 1174.7 1178.6 1182.4 1186.3 1190.1

50 1194.0 1197.8 1201.7 1205.5 1209.4 1213.2 1217.1 1220.9 1224.7 1228.6

60 1232.4 1236.3 1240.1 1243.9 1247.8 1251.6 1255.4 1259.3 1263.1 1266.9

70 1270.8 1274.6 1278.4 1282.2 1286.1 1289.9 1293.7 1297.5 1301.3 1305.2

80 1309.0 1312.8 1316.6 1320.4 1324.2 1328.0 1331.8 1335.7 1339.5 1343.3

90 1347.1 1350.9 1354.7 1358.5 1362.3 1366.1 1369.9 1373.7 1377.5 1381.3

100 1385.1 1388.8 1392.6 1396.4 1400.2 1404.0 1407.8 1411.6 1415.4 1419.1

110 1422.9 1426.7 1430.5 1434.3 1438.0 1441.8 1445.6 1449.4 1453.1 1456.9

120 1460.7 1464.4 1468.2 1472.0 1475.7 1479.5 1483.3 1487.0 1490.8 1494.6

130 1498.3 1502.1 1505.8 1509.6 1513.3 1517.1 1520.8 1524.6 1528.3 1532.1

140 1535.8 1539.6 1543.3 1547.1 1550.8 1554.6 1558.3 1562.0 1565.8 1569.5

150 1573.3 1577.0 1580.7 1584.5 1588.2 1591.9 1595.6 1599.4 1603.1 1606.8

160 1610.5 1614.3 1618.0 1621.7 1625.4 1629.1 1632.9 1636.6 1640.3 1644.0

170 1647.7 1651.4 1655.1 1658.9 1662.4 1666.3 1670.0 1673.7 1677.4 1681.1

180 1684.8 1688.5 1692.2 1695.9 1699.6 1703.3 1707.0 1710.7 1714.3 1718.0

190 1721.7 1725.4 1729.1 1732.8 1736.5 1740.2 1743.8 1747.5 1751.2 1754.9

200 1758.6 1762.2 1765.9 1769.6 1773.3 1776.9 1780.6 1784.3 1787.9 1791.6

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