W'eau WFI-007, Installation & Operation Manual, Page: 24 / 64

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E33
Piping temp. too high
protection under
cooling mode
Ambient/water temp. is too high
under cooling mode
Check the scope of using
Refrigerant system is abnormal Check the piping system
E34
Compressor start up
failure
Bad wire connection for
compressor
Check the wiring
Wrong phase connection for
compressor
Check the wiring
PCB failure Check/Change PCB
E35
Compressor over
current
Power supply is abnormal Check the power supply
E36
Compressor output
failure Wrong phase connection for
compressor
Check the wiring
E37
Current collection
failure
PCB failure Check/Change PCB
E38
Excessive temp. of
radiator Fan motor defective Check the fan motor
Bad ventilation Check the machine installation
E39 Module shutdown PCB failure Check/Change PCB
E40 Excessive DC voltage
Input voltage too high Check the voltage
PCB failure Check/Change PCB
E41
Low DC voltage
Input voltage too low Check the voltage
PCB failure Check/Change PCB
E43 Low AC voltage Input voltage too low Check the voltage
E44 Excessive AC current Input voltage imbalance Check the voltage
E45 E2 failure PCB failure Check/Change PCB
E46
DC fan motor
malfunction
Bad wire connection Check the wiring of fan motor
Fan motor defective Change a new fan motor
E47
Excessive AC voltage Input voltage too high Check the voltage