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Magnum Series
Unit has ice forming on the evaporator
Possible cause Solution
There is something blocking the supply and/or return air Remove blockage
The evaporator fan is not turning on Call service tech to troubleshoot
The evaporator unit has not gone through its anti-frost sequence yet 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.
If evaporator continues to ice Observe ice formation pattern. If only partway up the coil face,
the system could be low on refrigerant. If all the way up, the coil
may be dirty or airow is blocked.
Unit does not run/power up
Possible cause Solution
Evaporator is not plugged in Make sure the unit is plugged into an outlet
Power switch not on Turn unit on by pressing the power button on the display
Line voltage rating is incorrect for the system Check voltage line 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 unit is exhausting has ex-
ceeded 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 evapora-
tor or condenser side of the unit
Remove airow obstruction
Compressor is not turning on Please contact the installing technician to troubleshoot
Compressor keeps cycling on overload Make sure condenser fan is working and there is no airow
obstruction
Poor seal around door or other areas requiring a seal (around the unit
itself, wall joints, etc.)
Make sure there are no air gaps around the door. If door seal is
damaged, replace it.
Controller set too high Lower setpoint
Evaporator coil is frosted or iced up Observe ice formation pattern. If only partway up the coil face,
evaporator could be low on refrigerant. If so, contact the install-
ing technician to assist with troubleshooting.
System runs constantly
Possible cause Solution
Leaky door seal or poorly insulated cellar Fix leaky door seal and insulate cellar
CELLARCOOL TROUBLESHOOTING GUIDE
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