Where do the relays get power  from for demister?

2 Answers

  • 9 months ago

    I assume this is on a Car.

    Most use a vacuum dash-pot to operate doors and diverters to control air flow. They use the fluid cooling system for the heat. They use the electrical system for blower motors to move air over the windshield. Go to a library and read the MOTORS manual for your car.

  • 9 months ago

    Sorry, what is a demister?

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