Maintenance Guides / Safety & Electrical

Clean and test attic exhaust fan

Difficulty: moderateTime: 30 mins

Why it matters

Dust-caked bearings seize, burning out the motor; failed thermostat overheats attic.

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How to do it

  • 1

    Turn off power at breaker.

  • 2

    Vacuum dust from motor housing and blade.

  • 3

    Spin the blade gently by hand to check for resistance.

  • 4

    Clean the thermostat sensor with a soft brush.

  • 5

    Restore power and test on a warm day.