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7. Troubleshooting
7.2.5 CF 5 Disinfection Phase Failure
Detection:
Chamber temperature dropped below 80˚C during the disinfection phase of the cycle
Remedy:
Possible cause is a water heating problem. Follow the procedure in CF1.
7.2.6 CF 6 Serial Communication Failure
Detection:
Failure to read second temperature sensor within 10 seconds.
Remedy:
Possible causes are a corrupted program or flash memory, or a defective logic board.
Replace logic board.
7.2.7 CF 7 Cycle Aborted or Interrupted(C51WD only)
Detection:
Second temperature sensor readings are out of limits (either too low temperature or too high
temperature).
Cause:
Broken second temperature sensor wire, bad second temperature sensor connection to PCB
7.2.8 CF 8 Secondary Chamber Temperature Sensor Failure
Detection:
Second temperature sensor readings are outside limits (too high or too low).
Remedy:
Possible causes are disconnection or failure of the temperature sensor. Remove the kick plate.
Check the connectors or replace the temperature sensor as required.
Page 26
HYDR
IM
C51wd Service Guide