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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Sami

17 years of experience
49 reviews
Sami
17 years of experience
Arrived early. Worked fast. Thoroughly explained everything. Went more than the extra mile in completing repairs!
2000 VOLKSWAGEN BEETLE - HEATING AC - WASHINGTON, DISTRICT OF COLUMBIA

Ben

37 years of experience
698 reviews
Ben
37 years of experience
Incredibly nice and took the time to show me the problem, including comparison pictures between my unit and what a new unit should look like.
2007 NISSAN ALTIMA - HEATING AC - HOUSTON, TEXAS

Michael

7 years of experience
67 reviews
Michael
7 years of experience
My appointment was originally supposed to be at the end of June (3 week wait), Michael reached out to me and was able to cut that time by 2 weeks. In addition, he was prompt with his arrival. He was done within an hour and some change. Great guy. Will be go-to Mechanic.
2008 HONDA ACCORD - HEATING AC - SECAUCUS, NEW JERSEY

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