www.airkinglimited.com
6728076 Rev. G 5-17
5 of 8
Troubleshooting Guide
Trouble
Probable Cause
Suggested Remedy
1. Fan does not operate.
1a. Control setting.
1a. Check temperature and humidity level settings. If the intake air is not within
the preset range, the fan will not turn on. Either adjust the settings or wait
for the intake air temperature and/or humidity to change.
1b. A fuse may be blown or a circuit tripped.
1b. Replace fuse or reset circuit breaker.
1c. Wiring is not connected properly.
1c. Turn off power to unit. Check that all wires are connected.
1d
Motor has stopped operating.
1d. Replace motor.
2. Fan is operating, but air moves slower than normal.
2a. Obstruction in the ducting.
2a. Check for any obstructions in the ducting. The most common are bird
nests in the roof cap or wall cap where the fan intakes from the outside.
2b. Filter is clogged
2b. Change air filter (if equipped).
2c. Change/clear bug filter
3. Fan is operating louder than normal
3a. Motor is loose.
3a. Turn off power to unit and check that all screws are fully tightened
Restore power to unit.
3b. Fan blade is hitting housing of unit.
3b. Call your dealer for service.
