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Old 03-30-2013, 01:51 AM   #1
Jeeper
 
Join Date: Mar 2013
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Heater problem.

My heater only works on high. Any ideas why?

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Old 03-30-2013, 01:53 AM   #2
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Quote:
Originally Posted by Melvin View Post
My heater only works on high. Any ideas why?
Two possible problems: The switch on the dash needs replacing or the heater blower motor resistor (which is located below/under the glove box) is the issue.

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Old 03-30-2013, 03:51 AM   #3
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Agree, chk the resistor pack with a multimeter, as these things are prone to fail.. An easy 5 min job to replace
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Old 03-30-2013, 04:56 AM   #4
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Just replace the resistor it's $25 and 15 min install. The switch is very rare to be replaced.
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Old 03-30-2013, 05:55 AM   #5
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Quote:
Originally Posted by Melvin View Post
My heater only works on high. Any ideas why?
Sounds like mine. I stopped by Auto Zone on the way home from work yesterday and picked up a replacement resistor for $19.99 (lifetime warranty). After diner, I replaced it, and she works on all speeds now!

The stock one I removed was visibly damaged from moisture, as you could see corrosion on the circuit board.

I used this YouTube video (actually 3 videos) to give me an idea what to do. Easy job, tight space. Good luck.

-Jim
__________________
2002 Sport, for waves & woods,...and winter.
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Old 03-30-2013, 12:01 PM   #6
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Thanks guys.

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