Fans continuously run on high when air conditioner compressor is on

Asked by raleigh Feb 03, 2021 at 07:29 PM about the 2011 Ford F-150 Lariat SuperCrew 4WD

Question type: Maintenance & Repair

My trucks fans continue to run on high when
the air conditioner compressor is running and
will not turn off till you turn the truck off

1 Answer
74,270

OJ answered 3 years ago

Fan is pcm controlled. Scan for codes. High speed fan relay could be stuck on. AC high pressure sensor could be defective.

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