Wine Guardian Sentinel Series Installation, Operation And Maintenance Manual page 66

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
•
Possible Refrigerant Leak
Problems Controlling Cellar Temperature
Note: Problems are occurring even though the unit seems to be fully operational evaporator fan
blows air into the cellar and the compressor and condenser fan runs.
Cellar Temperature too cold (below 51°F or 10°C) when unit is running
Possible Cause:
•
Thermostat set point too low on cooling
•
Heating coil (optional) not operating
•
Thermostat set point too low on heating
•
Thermostat not controlling temperature
•
Thermostat mounted in improper
location
Cellar Temperature too cold (below 51°F or 10°C) when unit is not running
Possible Cause:
•
Too much heat loss to adjacent spaces
•
Cellar loads are too high
66
Solution:
•
Check thermostat set-up in manual
•
Contact an HVAC Technician
•
Remove Blockage
Solution:
•
Reset thermostat to higher temperature
•
Check for temperature rise across coil
Solution:
•
Increase insulation around the
ductwork
•
Check and clean filter and coil
•
Coil frozen – shut off unit for two hours
•
Install additional Insulation of the cellar
•
Replace with a larger sized unit