6.2 Faults
Fan not on / red light not on:
Fan on but compressor not:
Pump drain pan full amber light on:
Drain pan overflows:
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Mains power not on
Mains fuse blown
Switch on
Replace fuse
Dehumidify / fan only switch is in the fan only position
Start time delay
Defrost cycle in operation
Change to dehumidify
Wait for compressor start time delay to complete
Wait for defrost cycle to complete
Pump drain pan full
Turn off at switch on control panel and mains
Check condensate hose is not blocked or kinked
Check pump / gravity switch is in correct mode for the discharge mode in use
Condensate pump failure. This requires an engineer to investigate
Condensate high level switch failure
Float switches are located within the pump drain pan and require an engineer to check
their operation
Page 16
QA/IOM/46 Issue 11 - MD Dehumidifier
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