Errors
MN-111 | Service book | Errors and Troubleshooting MN-111 ENG Rev08 | 2019/06/21 | © 2019 W&H Sterilization Srl
13
Code
Description
Possible causes
Checks and actions
181
No temperature decrease at the
beginning of the DRYING phase (in
the first 90”).
Solenoid valve EV1
failure/clogged.
V2 one way valve clogged
Check the components conditions.
Replace the components if necessary.
F1 filter clogged
Chamber filters clogged or dirty.
Check and clean the filters.
Replace the components if necessary.
182
No pressure decrease during the
DRYING phase (if after 10’
Pchamber ≥ Penviroment).
See error "Errors" on page 10, all causes and the following.
Door gasket failure
V2 clogged/dirty
Check the components conditions.
Replace the components if necessary.
F1 filter clogged/dirty
All three chamber filters
clogged/dirty
Check and clean the filters.
Replace the components if necessary.
Pressure sensor failure
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS.
Replace the sensor if needed.
183
At the end of the drying phase,
Pchamber > 0.3 bar.
Solenoid valve EV5 failure.
Solenoid valve EV1 failure.
Check the components conditions.
Replace the components if necessary.
205
Chamber heater error (R2 too
low)
Main board failure
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS, Chamber heating element and safety thermostat (TABLE POINT 2).
Chamber heating failure
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS, Chamber heating element and safety thermostat (TABLE POINT 3).
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS, Chamber heating element and safety thermostat (TABLE POINT 4).
206
Chamber heater error (R2 too
high).
Chamber heater thermostat
operated.
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
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
persists, see next step.
Others.
See error "205" above.
207
Chamber heater error (R1 too high).
See error "206" above, but all tests and actions apply to R1.
208
Chamber heater error (R1 too low).
See error "205" above, but all tests and actions apply to R1.
210
Chamber pressure sensor error
or disconnected.
Pressure sensor disconnected.
Check the pressure sensor connections and cables.
Pressure sensor failure.
See error "130" on the previous page, same cause.
Main board failure.
See error "130" on the previous page, same cause.
211
Chamber pressure sensor error.
Pressure sensor failure
See error "130" on the previous page, same cause.
214
Chamber temperature sensor
error.
Chamber temperature sensor
failure.
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS, Chamber temperature sensors (TABLE POINT 1 and 2).
If it necessary replace the chamber temperature sensor.
If the problem persists, see next step.
Main board failure.
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS, Chamber temperature sensors (TABLE POINT 1 and 3).
If it is necessary, replace the main board.
215
Chamber temperature sensor
error or disconnected.
Chamber temperature sensor
disconnected.
Check the connection to the board and the relevant wires.
Chamber temperature sensor
failure.
Main board failure.
See error "214" above, same causes.
216
Chamber heater sensor error.
Chamber heater sensor failure
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS, Chamber heater temperature sensor (TABLE POINT 1 and 3)..
If it is necessary, replace the chamber heater sensor.
If the problem persists, see next step.
Main board failure.
See Test instructions service book, chapter SPECIFIC TESTS FOR INDIVIDUAL
COMPONENTS, Chamber heater temperature sensor (TABLE POINT 1 and 2).
If it is necessary, replace the main board.
