Blower motor module works for a while, but it stops?

2010 FORD F-150
257,000 MILES • 5.3L • V8 • 2WD • AUTOMATIC
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JKMC55
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  • 3 POSTS
My AC stops working. Compressor does not engage; I replace the module on blower motor. It works for a while, but it stops and I have to replace it again.
Jan 29, 2025 at 12:33 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Hi,

Are you referring to the blower motor resistor? I that part keeps failing, make sure the electrical connections are in good condition and not arcing.

If they are good, there is a good chance the blower motor itself is drawing too much amperage and causing the resistor to fail.

Take a look at the pic below and let me know if that is what was replaced. They refer to it as the blower motor speed control unit.

Let me know.

Joe

See pic below.
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Jan 29, 2025 at 12:39 PM
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JKMC55
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That helps a lot, Thanks.
Jan 30, 2025 at 1:02 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,216 POSTS
Did you get the problem fixed? If so what fixed it?
Feb 1, 2025 at 1:36 AM
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JKMC55
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  • 3 POSTS
Not yet.
Feb 1, 2025 at 2:15 AM
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