Quest CDG 174
Installation, Operation and Maintenance Instructions
1-877-420-1330
9
www.QuestHydro.com
info@QuestHydro.com
Air mover does not run. Compressor runs briefly but cycles on and off.
1. Loose connection in blower circuit
2. Obstruction prevents impeller rotation
3. Defective air mover
4. Defective control board.
Unit removes some water but not as much as expected.
1. Air temperature and/or humidity have dropped
2. Check to make sure humidistat is set high enough
3. Humidity meter and/or thermometer used are out of calibration
4. Unit has entered defrost cycle
5. Air filter dirty
6. Defective defrost thermistor
7. Low refrigerant charge
8. Air leak such as loose front cover
9. Defective compressor
10. Restrictive exhaust or inlet ducting
Unit runs but does not pump water.
1. Hose kinked or plugged
2. Pump motor defective
3. Pump check valve plugged
4. Bad connection in pump circuit
5. Hose disconnected internally
6. Defective control board
Unit pumps water automatically but not when PURGE button is pushed.
1. Bad connection in PURGE button circuit
2. Defective control board
Evaporator coil frosted continuously, low dehumidifying capacity.
1. Defrost thermistor loose or defective
2. Low refrigerant charge
Compressor runs with POWER button OFF.
1. Defective relay
2. Defective control board
3. Upper housing not sealed to tower
