11
Owner’s Manual
WPC-4000
Troubleshooting chart
Symptom
Possible Cause(s)
Corrective Action
Water leakage
High water level in con
-
densate tank
1. Remove blockage from drain
hose
2. Remove any object stuc un
-
deerneath of the black panel
nuder the water tank
The unit doesn’t work
1. Check the power supply
to verify that power is
available to the unit
1. Reset the circuit breaker and
restart the unit
2. Verify that the power
cord is connected
2. Connect power cord
No cold air flows from the
cold air outlet
1. Ambient air cannot be
properly cooled if the
filter is dirty and not
regularly cleaned
1. Clean the filter
2. Compressor will not
work if the unit is
turned off and on
quickly.
2. Wait 2 minutes after unit is
turned off before turning the
unit back on.
3. The ambient air tem
-
perature may be too
high
3. The temperature of the com
-
pressor can be higher when
the ambient temperature is
too high. The compressor will
not work unless the ambient
air temperature is within the
acceptable operating range of
the unit
Water flow can be heard
after compressor shuts off
No cause
Common to hear coolant flowing
after unit shuts off
Alarm displays “FT”with
less than half of condensate
water in the tank
Spring is possibly broken
Spring is possibly broken
Replace a new spring
(See Maintenance page 8)