CellarPro AH6500 - Manual (Page 15)

15
Troubleshooting
Issue: Cellar humidity does not reach desired set point
Diagnostics
Yes Yes
No
No Is the temperature
display on the
cooling unit
illuminated? Yes
No
Yes Yes Yes
No
No
No Is there water flow
in the supply line to
the humidifier? Yes
No
Is the display on the humidistat illuminated?
Cooling
Unit Power
Check:
Verify the power leads "80" and "81" are connected
properly and are providing power to the humidifier.
Refer to the humidifier installation instructions to identify
these leads (accessed by removing the humidifier
Access Cover). If there are no loose connections, the
unit must be serviced by a qualified technician. Possible
causes: loose internal wiring, failed water solenoid valve,
internal water line blockage, failed humidifier contactor.
Proceed to Humidifier Power and Water Supply Check
Humidifier
Power and
Water
Supply
Check:
Is there water flowing from the humidifier drain?
Is the evaporator
fan blowing?
See cooling unit diagnostics related to evaporator fan
See instructions for setting the humidistat to "Auto" and
changing the set point.
Correct issue to ensure water is being supplied to the
humidifier.
The humidifier is
functioning. Possible
corrective actions: Replace
Water Panel, check set
point, check humidistat
placement in cellar,
increase supply water
temperature to increase
humidifier performance
(120°F recommended,
140°F maximum), increase
evaporator fan speed.
The humidifier fan needs to
be replaced.
Is the internal
humidifier fan
blowing?
To verify,
remove the
access cover,
internal screen,
and water pad.
Is the humidistat
set to "Auto" and
the set point at the
desired value?
Check for loose connections on the humidistat lead
connections inside the humidistat. If the connections
wired correctly and tight in the terminals, the unit must
be serviced by a qualified technician. Possible causes:
loose internal wiring, failed 24V transformer.
Check power supplies to both the evaporator and
condenser module. If the power supply to both modules
is confirmed, the unit must be serviced by a qualified
technician.