Fan speed control inspection at your home or office

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Fan speed control is not working Inspection Service

The most likely cause of fan speed control failure is a resistor failure at the fan’s motor, although it can also be a defective control switch or burned-out fan motor.

Common reasons for this to happen:

  • Blower resistor malfunction
  • HVAC control panel is bad
  • Blower motor is bad

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the fan speed control issue, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

The mechanic will perform a thorough inspection of the HVAC system. The mechanic will check for motor operation by removing the connector and checking the condition of both male and female sides. They will probably test motor operation by connecting a battery via alligator clips to the motor’s plug pins and see if it runs direct from that source.

If the motor works fine, the next step is checking the resistor. The mechanic will unplug the resistor from its connector and check for burnt terminals. That often signifies a bad resistor. To check resistor functionality, the mechanic will use a multimeter set to the resistance function, then measure the resistances from a common point on the connector to the various pins to make sure the required Ohm values are up to spec.

The mechanic will be looking for an “open” condition (infinite resistance), which reveals a defective circuit.

Fast and easy Fan speed control is not working Inspection service at your home or office.

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Recent Fan speed control is not working Inspection reviews

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YourMechanic Fan speed control is not working Inspection Service

Average Rating

4.8/5

Number of Reviews

24

Rating Summary
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Joe

39 years of experience
456 reviews
Joe
39 years of experience
Joe was very knowledgeable, efficient and willing to explain his findings and repairs performed. I liked him and will use his services again. James A. Doubek PE
2005 CHRYSLER 300 - HEATING AC - LUTZ, FLORIDA

David

33 years of experience
38 reviews
David
33 years of experience
very pleasant,i am very satisfied with the job he done and information that he gave me , he is a professional a/c man!!!!!!!!!!!!!1
1990 PLYMOUTH ACCLAIM - HEATING AC - AUSTIN, TEXAS

Noe

32 years of experience
468 reviews
Noe
32 years of experience
Noe came after my work day, which was nice, as it didn't interrupt my day at all. I could still do chores around my house while getting my car taken care of. He was clear and helpful in describing to me what was wrong with my car and how to fix it.
1996 TOYOTA CAMRY - HEATING AC - SEATTLE, WASHINGTON

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