Service Manual Ideal Air CG2 Commercial Grade Dehumidifier
Sunlight Supply, Inc.
13
TROUBLESHOOTING GUIDE
Problem
Possible Causes
Remedy
1. Dehumidifier does not
start. (Both
compressor and fan
motor do not
operate.)
No power
Check power supply at outlet.
The PCB and/or fuse is blown
Check the PCB and fuse, replace as
necessary.
Poor plug contact at outlet
Re-‐insert plug into outlet or replace outlet.
Wire disconnected or loose
Look for loose wire and reconnect. Refer to
circuit diagram for terminal identification.
Repair or replace any loose terminal.
Capacitor failure.
(Discharge capacitor before
testing.)
Test capacitor. Replace if not within ±10%
of manufacturer's rating. Replace if shorted,
open, or damaged.
2. Fan motor runs but
compressor does not
run
Wiring problem
Check the wire connections; if loose, repair
or replace the terminal. If the wires are
disconnected, refer to wiring diagram for
identification, and replace the wires. Check
the wire connections; if not according to
the wiring diagram, correct the
connections.
Capacitor
(Discharge capacitor before
servicing.)
Check the capacitor. Replace if not within
±10% of manufacturer's rating. Replace if
shorted, open, or damaged.
Compressor
Check the compressor for open circuit or
ground. If open or grounded, replace the
compressor.
Overload protector (O.L.P.)
Check the compressor O.L.P. if externally
mounted. Replace if open. (If the
compressor temperature is high, remove
O.L.P., cool, and retest.)
3. Dehumidifier does not
dry the air as it
should.
Room air is dry.
Room temperature is too low.
Check room humidity with hygrometer.
Increase room temperature.
This unit is designed to be operated at
temperatures above 41 °F
Airflow is restricted.
Make sure there are no curtains, blinds or
furniture blocking the front or back of the
dehumidifier.
Doors and windows may
not be closed tightly
Check all doors, windows and other
openings to ensure they are securely closed
to prevent moisture from re-‐entering room.
Fan motor is not operating.
Check fan motor, repair or replace it.
Check if the air filter is
clogged with dust.
Clean the air filter.
