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Unit has ice forming on the evaporator
Possible cause
Evaporator filter and/or coil are dirty.
There is something blocking the supply and or return air
One or both evaporator fans are not turning on
The temperature of the room to which the unit is exhausting has
dropped below 50°
The unit has not undergone an Anti-Frost Cycle yet
Unit continues to ice
Unit does not run/power up
Possible cause
Unit is not plugged in
No power to outlet
Line voltage is incorrect rating for unit
Room at set point
Thermostat not calling for cooling
Faulty thermostat or wiring
Cellar temperature is too warm
Possible cause
The temperature of the room unit is exhausting to has exceeded
85°
The unit is undersized for the room
There is something blocking the supply and/or return air on
evaporator or condenser side of the unit
Unit is mounted too low in the cellar
One or more of the fans is not turning on
Compressor is not turning on
Compressor keeps cycling on overload
Poor seal around door
Controller set too high
Evaporator coil is frosted or iced up
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TROUBLESHOOTING GUIDE
Solution
Clean filter and coil with a vacuum. If coil is very dirty, use a spray bottle with
a small amount of liquid dish detergent. Spray coil, let set for five minutes, and
then flush with fresh water.
Remove blockage
Call a service tech to troubleshoot
Raise the temperature of the exhaust room
Check for ice in the depth of the coil. Melt with blow drier until coil is warm to
the touch. Soak up water with a towel.
Observe ice formation pattern. If only part way up the coil face, unit could be low
on refrigerant. If so, call Technical Support at 1-800-648-6058.
Solution
Make sure the unit is plugged into an outlet
Contact an electrician
Check line voltage to make sure there is 110-120V
Lower set point
Lower set point
Call Technical Support at 1-800-648-6058
Solution
Lower the temperature of the exhaust room
Order correctly sized unit
Remove airflow obstruction
Relocate unit so the distance from the ceiling and top of the
unit is no more than 18"
Call Technical Support at 1-800-648-6058
Call Technical Support at 1-800-648-6058
Make sure all fans are working and there are no airflow obstructions
Make sure there are no air gaps around the door. If door seal is
damaged, replace it.
Lower the set point
Observe ice formation pattern. If only part way up the coil face, unit could be low
on refrigerant. If so, call Technical Support at 1-800-648-6058.
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