Specifications

14
3000270 05.12
6.4 Troubleshooting
Observation Problem Solution
There is no power
going to the fan
- The circuit
breaker may
be off
- Fan speed
control is off
- Bad electrical
connections
- Check the circuit breaker
- Turn fan speed contron on
- Check and correct problem
There is power to
the fan but it is not
operating
- Bad electrical
connections
- The fan speed
control’s low
voltage setting
is too low
- The fan speed
control is bad
- Check and correct problems with connections. Pay special attention to the wiring in the
junction box
- Increase the setting with the plastic screw on the fan speed control’s front plate
- Replace the fan speed control
There is power to the
fan but it hums and
does not turn
- The motor run
capacitor may
be bad.
- Creosote may
stick
- Check capacitor and replace if necessary
- Clean fan
The fan seems to work
ne,butthereisnot
enough draft
- The fan may
be undersized
- Replace with a larger fan
The fan vibrates - The motor
shaft may be
bent
- The hinges
may be bent
- Replace motor
- Straighten out hinges
Thereisairownoise
from the draft hood
-Theueis
undersized.
- The fan is
oversized and
running too fas
- There is not much to do about it
- Reduce the fan speed
Mechanical noise can
be heard
- Foreign
matter may be
stuck
- Motor
bearings may
be worn out
- Remove matters
- Replace bearings