Symptoms of a Bad or Failing Heater Blower Motor

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Cost of Replacing a Bad or Failing Heater Blower Motor

If your car's heater doesn't work, only works on certain speeds, or only cold air comes out, you may need to replace the heater blower motor. Our certified technicians can come to you and diagnose the problem. You will receive a $30 credit towards any follow-up repairs that result from the diagnostic. Following are example prices for Car Heater Blower Motor Replacement. Click on the button below to get an upfront quote for your car.

Cars Estimate Parts Cost Labor Cost Savings Average Dealer Price
2010 Mercury Milan $192 $121.61 $70.00 16% $229.11
2011 Mazda 6 $242 $172.48 $70.00 13% $279.98
2011 Dodge Charger $208 $137.60 $70.00 15% $245.10
2013 Mercedes-Benz CL550 $507 $345.68 $161.00 14% $592.93
2010 Mercedes-Benz CLS550 $353 $282.73 $70.00 9% $390.23
2005 Mercedes-Benz CL55 AMG $441 $196.48 $245.00 22% $572.73
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How to Diagnose a Bad or Failing Heater Blower Motor?

blower heater motor

Virtually all road going vehicles are equipped with a heating and air conditioning system that is designed to help keep the vehicle’s passengers comfortable. One of the components of that system is the heater blower motor. The blower motor serves as the main electric motor that is responsible for blowing air through the vents. It is usually controlled by the blower motor resistor and switch, and can operate at several different speeds to help regulate cabin temperatures.

When the heater blower motor fails, the vehicle can be left without a properly functioning heating and air conditioning system, which apart from compromising comfort, can also disable useful functions such as the window defogger. Usually a bad or failing heater blower motor will produce a few symptoms that can alert the driver of a potential issue.

1. Weak airflow from the vents

One of the first symptoms of a potential problem with the vehicle’s heater blower motor is low airflow from the vents. If when the air or heat is turned on the vents blower noticeably less, or weaker air, that may be a sign that the heater blower motor is starting to wear out. A worn or weakened blower motor may not be able to provide adequate airflow to properly regulate the cabin temperature, and may also be approaching the end of its service life.

2. Fan only blows at certain speeds

Another symptom of a bad or failing heater blower motor is a motor that only functions at certain speeds. Most blower motors are designed to operate at different speeds in order to be able to regulate different cabin temperatures efficiently. If the blower motor fails to push air at any of it’s designed settings then it may be faulty. This can also be caused by a failed blower motor resistor or switch, so having the vehicle properly diagnosed is highly recommended.

3. No air from the vents

No air flow from the vents when the heater or air conditioning is activated is another symptom of a bad blower motor. If the heater blower motor burns out or short circuits, it will not function, and therefore will not be able to produce any airflow for the system. The blower motor will usually have to be replaced in order to restore proper operation to the system.

A faulty blower motor can disable an otherwise fully functional heating and air conditioning system, which will make the driving experience less comfortable for the vehicle’s passengers. Failed blower motors often require taking apart the vehicle’s interior, so if you suspect that your vehicle’s blower motor may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the motor should be replaced.

heating
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blower motors

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YourMechanic Car Heater Blower Motor Replacement Service

Average Rating

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Number of Reviews

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Rating Summary
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Dan

36 years of experience
611 reviews
Dan
36 years of experience
Great guy and overall very nice and good at his work.
1999 TOYOTA CAMRY - HEATER BLOWER MOTOR - CUMMING, GEORGIA

Carlos

25 years of experience
142 reviews
Carlos
25 years of experience
Carlos was on time, friendly and knowledgeable. He inspected and repaired my trucks A/C unit. Loved the convenience of having the car repaired right at home. I would definitely use this service again.
2011 CHEVROLET SILVERADO 1500 - HEATER BLOWER MOTOR - RIVERSIDE, CALIFORNIA

Chris

13 years of experience
397 reviews
Chris
13 years of experience
He is very professional.
2002 LAND ROVER RANGE ROVER - HEATER BLOWER MOTOR - SAN FRANCISCO, CALIFORNIA

Richard

8 years of experience
246 reviews
Richard
8 years of experience
Really good service. On time, knowledgeable and friendly. Will definitely recommend Richard and your mechanic. A great experience and will be calling for future work needed.
2007 KIA OPTIMA - HEATER BLOWER MOTOR - GOODLETTSVILLE, TENNESSEE

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