How do you replace a heater resistor?

How to Change a Blower Motor Resistor

Locate the blower resistor under the dash on the passenger side of the car.
Disconnect the wire harness connector on the resistor using the small flat-head screwdriver.
Remove the resistor, and then install the new one.

What does a heater resistor do?

“Blower motor” refers to an electrically operated fan in a vehicle that supplies air to the passenger compartment. The heater blower resistor helps control the rate at which the blower motor supplies this air.

Can you bypass a blower resistor?

In the highest speed state, the blower resistor is bypassed completely and the fan is connected directly to the car’s battery, which allows maximum current through the motor. Power to the blower motor is fed through the blower motor resistor, so if it fails or has any issues power can be cut off to the motor.

How do you remove a blower motor resistor?

Carefully lift the glove box out from under the dash and set it aside. Remove the screws that secure the blower motor resistor to the housing, and put them someplace safe. At this point, you can remove the resistor from the housing. Disengage the wire harness locking tab, and disconnect the wire harness from the blower motor resistor.

Why is my heater blower motor resistor not working?

This occurs due to the failed blower motor resistor not being able to control the flow of electric current, it could be that the resistor is somehow bypassed and the power is directly being fed from the switch. Excessive current can overheat and permanently damage the blower motor resistor

How much does it cost to replace a heater motor resistor?

The average cost of a blower motor resistance replacement is between $80 and $150, and labor costs are estimated between $35 and $80, with the price of the unit between $50 and $75. The estimate does not include taxes and fees. Founder, owner & main author of Mechanic Base.

Where is the resistor on my heater located?

Is your heater not working right? Replacing this resistor may help. It is located in the passenger foot well. Get this part online here: Loading…