Problems Controlling Cellar Temperature - Wine Guardian WGS40 Installation, Operation And Maintenance Manual

No power to thermostat
Power Switch Light is On and the Thermostat Light is On
Possible Cause
Thermostat is not set up properly
Unit is Operating and Blows Evaporator Air, but the Supply Air is Not
Colder Than the Return Air from the Cellar
Possible Cause
Thermostat not set up properly
Compressor not operating
Condenser airflow is blocked
Head Pressure (HP) switch is open

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.
69
Check wiring for loose broken or frayed
connections
Check transformer for 24v output
Solution
Check thermostat set up in the guide.
Press fan ON switch to check evaporator fan
only.
Solution
Check thermostat setup in the manufacture's
thermostat guide
High pressure switch open (button up)
Remove blockage
Clean filter and coil (if needed)
Reset HP switch See reset instructions on
page 56