Vintage Cellars Wine Guardian Water-Cooled Cooling System - Manual (Page 48)

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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.
Cellar Temperature is Too Low (Below 51 0 ) When Unit is Running
Possible Cause Solution
Thermostat set too low on cooling Reset thermostat to higher cooling temperature
Heating coil (optional) not operating Check for temperature rise across coil
Thermostat set too low on heating Reset thermostat to higher heating temperature
Thermostat not controlling temperature Wiring integrity compromised (shorted), replace
wiring
Cellar Temperature is Too Cold (Below 51 0 ) When Unit is Not
Running
Possible Cause Solution
Too much heat loss to adjacent spaces Increase insulation around the ductwork
and doorways
Add heater
Cellar Temperature is Too High, but Supply Air is Cold
Possible Cause Solution
Not enough evaporator airflow Remove blockage in supply or return ductwork
Check and clean filter and coil
Coil frozen – shut off unit for two hours
Cellar loads are too high Install additional insulation
Replace with larger sized unit