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Red Power Switch, Green Heater and Compressor Switch are lit but the red LED on
the Front is not lit
Possible Reason
Bad Transformer
Black Power Connector to the
PCB is not properly connected
Bad Front PCB
Defective Red Power Switch
Defective Green Heater and
Compressor Switch
Compressor Runs But Does Not Chill
Possible Reason
Condenser is dirty
Reduction of airflow into unit.
Compressor is running very
hot.
WL4FW Fault Finding
Replace Transformer
Properly connect.
Replace Front PCB
Replace Red Power Switch
Replace Green Heater and Compressor Switch
Clean the condensing coil of any obstructions or dust.
Make sure unit is not under minimum ventilation requirements
(50mm-100mm).
Low or lost refrigerant. Refrigerant recharge required.
Solution
Solution
Page 13 – Revision: EU27-11-2017
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Table of Contents
Troubleshooting
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