Doc No. 702105 Page 13 of 16
Power on to control
panel?
Check:
1. Control panel man/off/auto
switch position.
2. Fan circuit breaker(s)
3. Fan contactor and
associated wiring.
All air
distribution
fans off?
YES
If the fan(s) still fail to
operate normally,
please contact
the Nortek
service department.
YES
Check:
1. Power supply.
YES
NO
Air distribution fans
NO
Single fan
unit off?
Check:
1. Motor thermal trip (may run
when cool), test motor.
2. Motor wiring.
3. Motor plug/socket.
9. Fault Finding.
