HVAC fan faulty

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CDNUSER

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Ram Year
2009
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Hemi 5.7
My interior heating/cooling fan stopped working on the 3rd setting. No big deal but now only the highest setting works.
Hoping there is a cheap fuse I can fix.

2009 SLT. The older dials.

Anyone else have this issue?


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Hootbro

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2017 1500 Express 4x4
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Pentastar 3.6L
Your symptoms are a classic condition of the blower motor resistor module having taken a dump on one or more legs of the resistor module. Not uncommon as it is a high electrical load item that wears over time and the solder tracks and/or resistors fry out.

New one should be about $30 or so. Easy to change out and should be located next to the blower motor on the bottom of the HVAC pack on the passenger side of the cab. Will have some heavy gauge wires going to it and should be a couple of screws or bolts holding it in.
 
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