How To Fix a Car Heater Blower Fan That Is Not Working


The heater blower fan is required for a car heating system to blow either cold or hot air through the fan grills inside your car, if this is not working, you car's heating system is useless. If it is no longer working, the solutions to fix, troubleshoot and solve the problems that are related to it are listed below:

1)The first thing you should check if the fuse that protects the heater circuit is missing or blow, due to a short circuit. See you car's user manual for a accurate guidance on were the fuse is located in your car.

2)To identify if the car fan blower is the problem, locate it were it is inside your car. Once you have found it, get 2 wires and attach them to the positive and negative terminals found on the motor and then attach them to the car's battery, matching the correct polarity. If the fan motor spins really fast and you can feel air being forced out of the heater grills, the motor is not faulty and will not need replacing. If the car heater blower is not spinning, the motor is faulty, so to get the car's heater system to work again, you will need to replace it. If you are short of cash, buy a used one, instead of a brand new one because at the end of the day it does the same job for less.

3)If the car heater blower fan in your car is working, when you connect to the car battery to test it, the first thing you should check the switch that controls the heater blower fan, which is found in your car's dashboard. This switch controls the power the car heater blower fan and activates the motor, if it's damaged, the fan will simply not function.

4)If the switch that controls the heater blower fan is not faulty because you have checked it, then replace or get the heater resistor pack repaired, only if the car heater blower blows out air only on some heater settings. For example: the heater only works on setting 3 and doesn't work on setting 4.

14 comments:

  1. How much does this cost to repair? My heat and air work just the fan does not blow. It goes on and off and does this cause damage to other parts if it does not get fixed??

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    1. Try changing the cabin filter

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  2. My car does the same

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  3. My avalanche blower stopped working. Sometimes when I slam my door it kicks in for a few minutes and just shuts off. Only kicks in sometimes? Any clues?

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    1. Mine just started doing that. Right in time to need heat early in the morning. I wonder how expensive it is to fix...

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  4. Hi the fan on my ford focus has stopped working on setting 1,2 and 3 but it still works on 4 do you have any idea what the cause of this might be. Cheers.

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  5. Resistor needs replacing

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  6. How expensive is that?

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  7. power goes through my resistor & through the wires going to the blower motor, but when I connect the blower to the wires the voltages disappears. The blower fan works fine when connected direct to the battery.

    Any ideas?

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  8. I have a 2002 Ford Taurus & I've got my thermostat changed twice I got my heater core flushed 3times. It stills blows out cold air, could it be the hearter motor?

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    1. blend door motor closes for heat opens for cold air...located by heater core..sometimes it can get stuck open or stuck closed if the door motor is going bad

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  9. I have a vectra and my blower works when it wants so not at all much sometimes it just comes on by itself dont no wot to do help please

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  10. I have a 2002 van and they say my defrost not working

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