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Ventilation Hood Blower Does Not Operate


  • Hood blower does not turn on.
  • Ventilation fan does not work on all speed or power settings.
  • Hood fan variable control does work, either turns on or off only.
  • Ventilation blower runs as soon as power is supplied, does not turn off.
  • Blower stops working after running for some time.


  • Installation issue
  • Wiring
  • Blower
  • Blower control switch
  • User interface (control)
  • Control assembly
  • Circuit board
  • Transformer


  1. Verify unit installation. Refer to the product Installation Guide for further information.
    • If equipped, make sure the air diverter is installed properly.
  2. Turn the home circuit breaker to the unit off for 10 seconds then back on again. Retest the unit operation.
  3. Make sure blower motor plug is plugged into outlet in the hood.
    • Hoods may use one or two blowers.
    • Each blower has its own power cord and receptacle.
    • There are two receptacles in the hood.
    • If a hood has only one blower, only one receptacle will be used
  4. Ensure filters are clean and installed properly.
  5. If visible with filters removed, make sure damper is opening when blower is on. Damper may be audible as it opens and closes; listen for clicking noise of the flaps.
  6. Make sure end cap is not blocked.

See also:


If these steps do not resolve the issue, no further troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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