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

Cellar Temperature too cold (below 11°C) when unit is running
Possible Cause
Thermostat set too low on cooling
Heating coil (optional) not operating
Thermostat set too low on heating
Thermostat not controlling temperature
Cellar Temperature is too cold (below 11°C) when unit is not running
Possible Cause
Too much heat loss to adjacent spaces
Cellar loads are too high

Problems Controlling Cellar Humidity

Humidity too low or supply air is too cold, without optional humidifier
Possible Cause
Not enough evaporator airflow
Defective Thermal Expansion Valve
Humidity too low, without optional humidifier
Possible Cause
No moisture being added to cellar
70
Solution
Reset thermostat to higher cooling
temperature
Check for temperature rise across coil
Reset thermostat to higher heating
temperature
Wiring integrity compromised (shorted),
replace wiring
Solution
Increase insulation around the ductwork
Check and clean filter and coil
Coil frozen – shut off unit for two hours
Install additional insulation
Replace with larger sized unit
Solution
Remove blockage in supply or return
ductwork
Check and clean filter and coil
Coil frozen – shut off unit for two hours
If under warranty call for service
If not under warranty call a refrigeration
technician
Solution
Add Wine Guardian humidifier or a room
humidifier