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Old 05-27-2022, 01:35 PM   #5
truckster
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Location: Orem, Utah
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Re: Can Someone Tell Me What This Is/Does?

Quote:
Originally Posted by the67Beast View Post
Somebody please correct me if I am wrong, but it looks like the resistor that controls either the fan speed or the variation on the heat output. It produces heat so it is installed inside the box so that air moving across it cools it.
As mentioned, it controls the fan speed. Temperature is controlled by the blend door.
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