Thread: heat quiting

  1. heat quiting

    My heater keeps shutting off, I replaced the whole module. Still shuts off and comes on when desired. The third setting usually doesn't work. I start my Jeep to let it warm up. The heat turns on. A half hour later I jump in it and the heats off. Any suggestions?

  2. #2
    Join Date
    Dec 1999
    Location
    Virginia Beach VA
    Posts
    8,129

    Re: heat quiting

    Welcome to Jeepz.com.
    What year and model Jeep do you have? Also, when you say the heat cuts off, does the air change from hot to cold, or does the fan motor quit blowing all together?
    My 2005 Wrangler Build Thread

    “He who is without oil shall throw the first rod.” -Compressions 8.7:1

  3. #3
    Join Date
    Nov 2014
    Location
    Edmonton,Alberta, Canada
    Posts
    104

    Re: heat quiting

    With addition to terrymason's questions, what do you mean by the whole module? By your description,which more detail would be appreciated, kind of sounds like a loose/intermittent contact or connection

  4. #4

    Re: heat quiting

    The blower just stops on the last two of the highest settings. It's a 2001 Jeep wrangler sport with the 4.0L the air still remains hot or cold depending on the setting just the blower its self stops.

  5. #5
    Join Date
    Nov 2014
    Location
    Edmonton,Alberta, Canada
    Posts
    104

    Re: heat quiting

    Could be the switch itself or the blower motor. Don't know if it's actuators or vacuum. My '01 grand cherokee is vacuum

  6. #6
    Join Date
    Feb 2009
    Location
    Dayton Ohio Area
    Posts
    6,033
    It has to be the switch or wiring. Though the resistors are known to go bad, however, the high setting never fails because it is a short.
    Last edited by JPNinPA; 01-30-2015 at 12:37 PM.
    "Never look down on anybody unless you're helping him up" - Jesse Jackson

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