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WM&FD TWIN
051019
CELLARCOOL TROUBLESHOOTING GUIDE
Ice forming on the evaporator units
Possible cause
Solution
Evaporator filters or coils are dirty
Remove the filters and wash them, then clean the coils with a
vacuum. If coils are very dirty, use a spray bottle with a small amount
of liquid dish detergent or coil cleaner. Spray coils, let set for five
minutes, then flush with fresh water.
There is something blocking the supply and/or return air
Remove blockage
The evaporator fans are not turning on
Call a service tech to troubleshoot
The evaporator units have not gone through an Anti-Frost Cycle yet
Check the coils for surface ice. Melt with blow drier until coils are
warm to the touch. Soak up water with a towel.
If evaporator units continue to ice
Observe ice formation pattern. If only part way up the coil face, the
system could be low on refrigerant. If all the way up, the coils may be
dirty or airflow is blocked.
System does not run/power up
Possible cause
Solution
Evaporator units are not plugged in
Make sure the units are plugged into an outlet
Power switch not on
Turn unit on by pressing the power button on the control
Line voltage rating is incorrect for the system
Check line voltage to make sure there is 110V-120V
Bottle at setpoint
Lower setpoint
Thermostat not calling for cooling
Lower setpoint
Faulty thermostat or wiring
Call Customer Service at 1-800-343-9463
Cellar temperature is too warm
Possible cause
Solution
The temperature of the room to which the condensing unit exhausts
exceeds 110°F
Intake temperature needs to drop below 110°F
The system is undersized for the cellar
Order correctly sized system
There is something blocking the supply and/or return air on the
evaporator units or the condensing unit
Remove airflow obstruction
Evaporator units are mounted too low in the cellar
Relocate units so the distance from the ceiling and top of the unit is
no more than 18”
One or more of the fans is not turning on
Please contact the installing technician to troubleshoot
Compressor is not turning on
Please contact the installing technician to troubleshoot
Compressor keeps cycling on overload
Make sure all fans are working and there is no airflow obstruction
Poor seal around door or other areas requiring a seal (around the
unit, wall joints, etc.)
Make sure there are no air gaps around the door. If door seal is
damaged, replace it.
Setpoint too high
Lower the setpoint
Evaporator coils are frosted or iced up
Observe ice formation pattern. If only part way up the coil face, the
system could be low on refrigerant. If so, contact your installing tech-
nician to assist with troubleshooting.
System runs constantly
Possible cause
Solution
Leaky door seal or poorly insulated cellar
Fix leaky door seal and insulate cellar