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03 e53 aux fan issues 03 e53 aux fan issues
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Old 07-02-2025, 01:57 PM
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Join Date: Aug 2024
Location: Oklahoma
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03 e53 aux fan issues
As part of my AC trouble shooting I've found what may be a partial cause, the aux fan.
Symptoms:
Will not power on regardless of temp, ac activation or having the temp sensor unplugged at the lower hose.
Does work through INPA.
Was replaced with a used unit 1 year ago when I bought it because it ran continuously if the battery was connected. Not sure when it quit but was discovered investigating AC issues.
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