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Old 01-23-2020, 07:57 AM
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Replaced Resistor and control switch

I need some help with my 2004 Jeep Wrangler TJ. It is a RHD (right hand drive) as I work for the US Post Office. I have recently replaced the control switch because it had melted. That didn’t fix the issue. (Issue- Control switch not working on the 2nd or 3rd setting but does on the other 2). So I then replaced the Resistor and that seem to fix the issue “Temporarily”. It has now been about 3 months and now when I turn the heat back on I’ve lost the 3rd setting again. What can I do to fix this? With the temps being in the teens here on some days I have to have my heat when I’m out on a route. Any tips, advice, or anything to help me, please tell me. I’m tired of spending so much money on this heater when I could be spending it on a lift kit and Tires. Below is a picture of my beauty with brand new LED headlights!

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Old 01-23-2020, 07:38 PM   #2
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Needs a new blower. It ages and the draw it pulls increases. Happened to me but I was luckily able to catch it before it entirely melted my harness.
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Old 01-23-2020, 08:10 PM   #3
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Quote:
Originally Posted by SoTxJeep99 View Post
Needs a new blower. It ages and the draw it pulls increases. Happened to me but I was luckily able to catch it before it entirely melted my harness.
That right there. The shellac insulation on the motor windings starts breaking down allowing the windings to start shorting to each other. That starts an ever-increasing amount of current the fan motor draws. Replace that fan motor ASAP!
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Old 01-24-2020, 07:18 AM
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Thanks guys I appreciate it! I’ll get one ordered ASAP.
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