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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YourMechanic Fan speed control is not working Inspection Service

Average Rating

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Number of Reviews

47

Rating Summary
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William

31 years of experience
183 reviews
William
31 years of experience
William showed up on time. Fixed the issues I was having with my A/C and heat. Friendly, knowledgeable and courteous. Will use William again in future if he is available.
2000 FORD RANGER - HEATING AC - GLENDALE, ARIZONA

Harish

24 years of experience
523 reviews
Harish
24 years of experience
I like him a lot! He tells the truth!
1997 FORD EXPLORER - HEATING AC - CHARLOTTE, NORTH CAROLINA

James

28 years of experience
364 reviews
James
28 years of experience
Super knowledgable and professional! Very impressed- great service!
1998 HONDA PASSPORT - HEATING AC - YORBA LINDA, CALIFORNIA

Jeffrey

24 years of experience
683 reviews
Jeffrey
24 years of experience
Excellent!!!!
2007 JEEP WRANGLER - HEATING AC - INDIAN TRAIL, NORTH CAROLINA

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