Wine Guardian Ducted Split Wine Cellar Cooling Systems (WGS175) - Manual - Manual (Page 67)

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No power to thermostat Check wiring for loose broken or frayed
connections
Check transformer for 24v output
Power Switch Light is On and the Thermostat Light is On
Possible Cause Solution
Thermostat is not set up properly Check thermostat set up in the guide.
Press fan ON switch to check evaporator fan
only.
Unit is Operating and Blows Evaporator Air, but the Supply Air is Not
Colder Than the Return Air from the Cellar
Possible Cause Solution
Thermostat not set up properly Check thermostat setup in the manufacture’s
thermostat guide
Compressor not operating High pressure switch open (button up)
Condenser airflow is blocked Remove blockage
Clean filter and coil (if needed)
Head Pressure (HP) switch is open Reset HP switch See reset instructions on
page 56
Problems Controlling Cellar Temperature
Problems are occurring even though the unit seems to be fully operational – evaporator fan blows
air into the cellar and compressor and condenser fan runs.