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Service Diagnostic Tree
Running all the time, no water
Troubleshooting (continued)
REMOVE THE FILTER
IS THE EVAPORATOR
COIL ICED UP?
IS THE DISCHARGE
AIR WARM?
REMOVE BACK
DUCT PANEL
IS THE
COMPRESSOR
VIBRATING?
CAUTION:
COMPRESSOR
MAY BE
HOT
IS THE AMBIENT
TEMPERATURE AT
OR BELOW 50F?
PROBABLE DEFROST
ISSUE WITH PROBE
OR WIRE
OUTSIDE OF
OPERATION RANGE
RETEST IN WARMER
AMBIENT TEMPERATURE
DEHUMIDIFIER SHOULD
BE WORKING.
SEE PERFORMANCE TEST
IN DR90/120 TECHNICIAN
FUNCTION TEST
PROBABLE SEALED
SYSTEM LEAK OR
COMPRESSOR FAILURE
PROBABLE RELAY OR
DEFROST ISSUE
NO
YES
YES
NO
YES
NO
M33757
NO
YES
TrueDryDR90/DR120DehumidicationSystem69-2690EFS—04
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