N'Finity 3000, User Manual

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Page 17
TROUBLESHOOTING GUIDE
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, the unit is exhausting to,
has dropped below 50°
The unit has not gone through its anti-frost sequence, yet.
If 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 to Warm
Possible Cause
The temperature or 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
Solution
Clean filter and 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 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 800-648-6058
Solution
Make sure the unit is plugged into an outlet
Contact an Electrician
Check line voltage to make sure there is 115v/15amp
Lower set point
Lower set point
Call Technical Support at 800-648-6058
Solution
Lower the temperature of the exhaust room.
Order correct size unit
Remove air flow obstruction
Re-Locate unit so the distance from the ceiling and top of the
unit is no more than 18”
Call Technical Support at 800-648-6058
Call Technical Support at 800-648-6058
Make sure all fans are working and there are no airflow obstruction.
Make sure there are no air gaps around the door. If door seal is dam-
aged, 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
800-648-6058