T370 heat control, set to cold, but blowing hot air?

Discussion in 'Kenworth Forum' started by KWT370, Jan 20, 2021.

  1. KWT370

    KWT370 Bobtail Member

    Dec 30, 2020
    Folks looking for a few suggestions! My heat control knob is set for cold but it constantly blows hot... ive check the control valve on the inside fire wall and it works smooth! Any insights?
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