W&H MN-111 Troubleshooting Manual Download Page 17 | Manualshive

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Errors

MN-111 | Service book | Errors and Troubleshooting MN-111 ENG Rev08 | 2019/06/21 | © 2019 W&H Sterilization Srl

17

Code

Description

Possible causes

Checks and actions

535

Door locking: motor: current
consumption error (during door
opening)

Motor failure.

Main board failure.

Replace the door locking system, if the problem persists replace the main board.

591

Software error.

Software error.

Main board failure.

Upgrade the software to the latest version, if the problem persists replace the main
board.

If the problem persists, call service.

950 to 955

Software chunk size error.

Software corruption.

Main board failure.

990

Manual stop.

Cycle interrupted manually by the user.

995 to 999

Software error.

Software corruption.

Main board failure.

Upgrade the software to the latest version, if the problem persists replace the main
board.

If the problem persists, call service.

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Summary of Contents for MN-111

Page 1: ...MN 111 110 V 220 V SERVICE BOOK ENG Rev08 Errors and Troubleshooting...

Page 2: ...est instructions Loop cycle Test instructions Maintenance program table Instructions for use Repair and Spare Parts Manufacturer reference contacts All Message list Instructions for use Operational st...

Page 3: ...ation Srl iii About this manual 4 Conformity 5 Symbols and messages 6 Safety warnings 8 Emergency door opening 9 Errors 10 Checks and actions 10 Other problems 18 Water tank problems 18 Water spillage...

Page 4: ...LAIMER All pictures graphics and illustrations provided in this manual are for the comprehension of the text They are not meant to be an accurate representation of product details Thus they should be...

Page 5: ...61010 1 2012 Safety requirements for electrical equipment for measurement control and laboratory use general requirements ASME Boiler and pressure vessel code EN 13060 Small steam sterilizers ANSI AA...

Page 6: ...lectrical shock Hot surfaces Risk of burns SYMBOLS USED IN THIS MANUAL Mounted with magnets OR magnetic components present Components sensitive to electrostatic discharges ATTENTION Don t use any glue...

Page 7: ...Symbols and messages MN 111 Service book Errors and Troubleshooting MN 111 ENG Rev08 2019 06 21 2019 W H Sterilization Srl 7 LABEL ON THE BOX...

Page 8: ...afety devices e g glasses gloves protection mask etc n Before making any repairs or transport ward off unauthorized personnel from the working area n Refer also to all the safety indications given in...

Page 9: ...ast Notice Carry out this procedure only as indicated and with the sterilizer in the indicated conditions Any attempt to open the door in a different way can seriously damage the sterilizer OPEN THE D...

Page 10: ...re short circuited or out of range Main board failure In the Component Activation menu check the resistance of all the supplied components heaters vacuum pump water pump Compare the values shown by th...

Page 11: ...ilization cycle If the problem persist see next step Water pump failure Check priming ULKA valve failure See Test instructions service book chapter SPECIFIC TESTS FOR INDIVIDUAL COMPONENTS Water pump...

Page 12: ...etical and chamber temperature 0 8 C if Tchamaber Ttheo no error shown See error 130 above all causes 133 At the end of HEA3 phase the difference between theoretical and chamber temperature 0 8 C if T...

Page 13: ...DIVIDUAL COMPONENTS Chamber heating element and safety thermostat TABLE POINT 1 Chamber heater not connected Check the connections and the wires between the heater and the main board If the error pers...

Page 14: ...Check the connections and the wires between the heating element and the main board If the error persists see next step Main board failure See Test instructions service book chapter SPECIFIC TESTS FOR...

Page 15: ...arting from the beginning of the cycle H20 1200cc Door gasket failure Check and replace the door gasket if needed water pump failure See Test instructions service book chapter SPECIFIC TESTS FOR INDIV...

Page 16: ...g system automaticmode Door locking system manual mode Replace the microswitch if needed If the problem persists check the continuity of the cables from the microswitch to the main board If the proble...

Page 17: ...place the main board 591 Software error Software error Main board failure Upgrade the software to the latest version if the problem persists replace the main board If the problem persists call service...

Page 18: ...ing valve faulty Check electricoperation of the valve Check the valve connections and wiring The Fill clean water tank message is displayed in spite the tank is full Low level clean water sensor fault...

Page 19: ...ace MMIboard if necessary User configuration lost or cycle history lost SD card not detected Check if the SD card in insert properly in the MMIslot Replace SD card if necessary the SD card shall be pr...

Page 20: ...See error 100 on page 11 and 130 on page 12 all causes Water consumption too high Chamber overloaded See maximum load weight specified for each cycle and type of load Please refer to the Instructions...

Page 21: ......

Page 22: ...Manufacturer W H Sterilization Srl via Bolgara 2 Brusaporto BG Italy www wh com med wh com 39 035 66 63 000 MN 111 Service book Errors and Troubleshooting ENG Rev08 2019 06 21 Subject to changes...

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