1-877-420-1330
Quest 185 Cool
Installation, Operation and Maintenance Instructions
22
www.QuestHydro.com
Troubleshooting Procedure for Performance Related Issues.
This method of diagnosis is used to function check the internal components in the dehumidifier. This is to be used
when a performance issue is suspected.
1. Set the humidity controller all the way to the most humid setting or off position – Did the unit shut off?
2. If yes, turn the fan setting to the ON position – does the fan start?
3. If fan starts, leave in the fan ON position and set the humidity all the way to driest setting. May have to wait 5
minutes for the compressor to start.
4. Listen for a distinct buzzing/humming sound of a compressor starting up – do you hear this noise?
5. If compressor is running and continues to run, after about 15 minutes you should feel a slight increase in air tem-
perature being discharged out of the discharge air side of the unit.
6. If so, depending on your environmental conditions (temp/Rh%), you should see some water production out of
the hose within 30 minutes or so. (Note: If the room temperature is 55 degrees or below and/or in area of low
relative humidity, the dehumidifier will produce little to no water.)
7. Collecting the water removed in a 24 hour period will give a measurement of performance.
9. Wiring Diagrams
9.1 Dehumidifier Wiring Diagram
4033178
LINE
NEUTRAL
DEHU.
RELAY
BLOWER
RELAY
BLOWER
XFMR
DEHU.
RELAY
COIL
BLOWER
RELAY
COIL
DEFROST
T-STAT
L. PRESS
SWITCH
RUN
CAP.
NC
NO
YEL-6
BLU-7
GRN-5
PNK
-3
WHT
-4
RED-1
YEL-2
BLK-9
BLK-8
BLK
BLK
BLK-3
WHT
-5
BLK-2
BL
U-2
115V
24V
COM
COM
BRN-3
BLK-1
BLK
-1
+24VAC
DEHU
FAN
COM
CUSTOMER
CONTROL
WIRING
BLU
YEL
GRN
RED
BLK
BLK
24VAC TO
COND.
GRN-4
NO
BLK-5
VIO-6
