Specifications

UFM 070313
Page 28 | 1-800-343-9463
TROUBLESHOOTING GUIDE
Unit has ice forming on the Evaporator
Possible Cause Solution
Evaporator coil is dirty.
Clean coil with a vacuum.
If coil is very dirty, use a small hand spray with a small amount
of liquid dish washer detergent. Spray coil, let set for 5 min, then
ush with fresh water.
There is something blocking the supply and or return air Remove blockage
The evaporator fan is not turning on. Call a service tech to troubleshoot
The 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 Unit continues 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 coil may be dirty or airow is blocked.
Unit does not run/power up
Possible Cause Solution
Unit 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 control
Line voltage is incorrect rating for the system Check line voltage to make sure there is 110v/120v
Air Sensing at set point Lower set point
Thermostat not calling for cooling Lower set point
Faulty thermostat or wiring Call Customer Service at 1-800-343-9463
Cellar Temperature is to Warm
Possible Cause Solution
The temperature of the room supplying the condenser
side of the unit has exceeded 110°F
Intake temperature needs to drop below 110°.
The unit is undersized for the cellar. Order correct size system
There is something blocking the supply and/or return air,
on the Evaporator or the Condenser side of the Unit.
Remove air ow obstruction
One or more of the fans are 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 are no airow
obstructions.
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.
Controller Set Point set too high Lower the set point.
Evaporator coil is frosted or iced up Observe ice formation pattern. If only part way up the coil
face, Unit could be low on refrigerant. If so, contact your
installing 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 in accordance with
this manual. (Page 9)