ULT 072517
Page 24 | 1-855-235-5271
Ultimate Series
TROUBLESHOOTING GUIDE
Unit has ice forming on the evaporator
Possible cause
Solution
Evaporator coil is dirty
Clean the coil with a vacuum . If coil is very dirty, use a spray bottle
with a small amount of liquid dish detergent or coil cleaner . Spray coil,
let set for five minutes, then flush 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 an Anti-Frost Cycle yet
Check the coil for surface ice . Melt with blow drier until coil is warm to
the touch . Soak up water with a towel .
The unit continues to ice
Observe ice formation pattern . If only part way up the coil face, unit
could be low on refrigerant . If all the way up, the coil may be dirty or
airflow 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 unit
Check line voltage to make sure there is 110V-120V
Bottle at set point
Lower set point
Thermostat not calling for cooling
Lower set point
Power select switch in wrong position
See page 11 for correct switch position
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
exhausts exceeds 110°F
Intake temperature needs to drop below 110°F
The unit is undersized for the cellar
Order correct size unit
There is something blocking the supply and/or return air on
evaporator or condenser side of the unit
Remove airflow obstruction
Unit is mounted too low in the cellar
Relocate unit so the distance from the ceiling and top of the unit or
cold air supply duct is no more than 18”
One or more of the fans is not turning on
Call Customer Service at 1-800-343-9463
Compressor is not turning on
Call Customer Service at 1-800-343-9463
Compressor keeps cycling on overload
Make sure all fans are working and there is no airflow obstruction
Poor seal around door
Make sure there are no air gaps around the door . If door seal is
damaged, replace it .
Set point 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, call Customer Service at 1-800-343-9463 .
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)
