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DR90/120 Service Diagnostic Tree
Running all the time, does make water
DR90/120 Service Diagnostic Tree
Too noisy or vibrates too much
Troubleshooting (continued)
JUMP “R” AND “DEHU”
TO RUN COMPRESSOR
AND FAN
IS THE NOISE OR
VIBRATION PRESENT?
IS THE NOISE OR
VIBRATION PRESENT?
REMOVE BACK PANEL
AND INSPECT FOR
MECHANICAL FAN
BINDING OR VIBRATION
REMOVE BACK PANEL
AND INSPECT
REFRIGERATION LINES
AND COMPRESSOR.
REPAIR AND RETEST
FOR NOISE
PROBABLE RELAY OR
DEFROST ISSUE
YES
YES
NO
M33759
NO
REMOVE EXTERNAL DEHUMIDISTAT
WIRING FROM “DEHU” AND “R”
ON TERMINAL BLOCK.
JUMP “R” AND “F” TO TURN FAN ONLY ON
IS THE DEHUMIDIFIER
RUNNING NOW?
DEHUMIDIFIER NEVER
TURNS OFF, DOES
MAKE WATER
REMOVE EXTERNAL
DEHUMIDISTAT WIRING
FROM “DEHU” AND “R”
ON TERMINAL BLOCK
CHECK OPERATION
OF EXTERNAL
DEHUMIDISTAT
CALL TECHNICAL
SUPPORT
YES
M33758
NO
TrueDryDR90/DR120DehumidicationSystem69-2690EFS—04 17