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Page 34 PT-EXPL5000 060311
Solution
Clean lter 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
ush 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 Customer Service at
800-343-9463
Solution
Make sure the unit is plugged into an outlet
Turn unit on by pressing the power button on the control
Reset circuit breaker on unit by pushing reset button located on
right side of unit next to the plug outlet
Check line voltage to make sure there is 110v/120v
Lower set point
Lower set point
See page 15 for correct switch position
Call Customer Service at 800-343-9463
Solution
Intake temperature needs to drop below 110°.
Order correct size unit
Remove air ow obstruction
Re-Locate unit so the distance from the ceiling and top of the
unit is no more than 18”
Call Customer Service at 800-343-9463
Call Customer Service at 800-343-9463
Make sure all fans are working and there are no airow obstruction.
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 Customer Service at
800-343-9463
TROUBLESHOOTING GUIDE
Unit has ice forming on the evaporator
Possible Cause
Evaporator lter and/or coil are dirty.
There is something blocking the supply and or return air
The evaporator fan is not turning on.
The temperature of the room, the unit is exhausting to,
has dropped below 45°
The unit has not gone through its defrost sequence, yet.
If unit continues to ice.
Unit does not run/power up
Possible Cause
Unit is not plugged in
Power switch not on
No power to outlet
Line voltage is incorrect rating for unit
Bottle at set point
Thermostat not calling for cooling
Power select switch in wrong position
Faulty thermostat or writing
Cellar Temperature is to Warm
Possible Cause
The temperature or the room unit is exhausting to has
exceeded 110°
The unit is undersized for the cellar.
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