Wine Guardian Ducted Split Wine Cellar Cooling Systems (WGS175) - Manual - Manual (Page 72)

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Advanced Troubleshooting
IMPORTANT
THIS SECTION IS INTENDED FOR QUALIFIED REFRIGERATION SERVICE TECHNICIANS ONLY.
THE TECHNICIAN SHOULD REPEAT ALL OF THE PREVIOUS TROUBLESHOOTING STEPS
BEFORE TAKING ACTION ON THESE MORE TECHNICAL SOLUTIONS.
Evaporator Coil is Freezing
Possible Cause
Solution
Charge too low Check sight glass
Check for leaks
Add refrigerant
High Pressure Switch Keeps Tripping Even After Checking for
obstructions and Dirty Filters/Coils
Possible Cause Solution
Condenser fan not operating Repair or replace
Unit Cycles on and off more than 8 times/hr
Possible Cause Solution
Thermostat malfunctioning Check the thermostat guide for thermostat
information
Low suction pressure Check low pressure switch
Check pressure and adjust superheat