Unit Is Operating And Blows Evaporator Air; Cellar Temperature Too Cold (Below 51 Degrees) When Unit Is Running; Cellar Temperature Too Cold (Below 51 Degrees) When Unit Is Not Running; Humidity Too Low Or Supply Air Is Too Cold, Without Optional Humidifier - Wine Guardian SS025 Installation, Operation And Maintenance Manual

Unit is operating and blows evaporator air,

but the supply air is not colder than the return air from the cellar
Possible Cause
Remote interface controller not set up
properly
Compressor not operating
Condenser airflow is blocked

Cellar temperature too cold (below 51 degrees) when unit is running

Possible Cause
Remote interface controller set too low on
cooling
Heating coil (optional) not operating
Remote interface controller set too low on
heating
Remote interface controller not controlling
temperature

Cellar temperature too cold (below 51 degrees) when unit is not running

Possible Cause
Too much heat loss to adjacent spaces
Cellar loads are too high

Humidity too low or supply air is too cold, without optional humidifier

Possible Cause
Not enough evaporator airflow
Defective thermal expansion valve
Temperature set too cold
Solution
Check remote interface controller setup in the
manufactures guide
High pressure switch open (button up)
Alarm will appear on remote interface controller
Remove blockage
Clean filter and coil (if needed)
Head Pressure (HP) switch is open
Reset HP switch See reset instructions on pg. 60
Solution
Reset remote interface controller to higher
cooling temperature
Check for remote interface controller rise across
coil
Reset remote interface controller to higher
heating temperature
Remote interface controller mounted in improper
location
Solution
Increase insulation around the ductwork
Check and clean filter and coil
Coil frozen – shut off unit for two hours
Install additional insulation
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
Raise temperature setpoint
57