How do you know if your heater resistor is bad?
Symptoms of a Bad or Failing Heater Blower Motor Resistor
- Blower motor stuck on one speed. A common symptom of a faulty blower motor resistor is a blower motor that is stuck on one setting.
- Blower motor does not work on certain settings.
- No air from the vehicle’s vents.
Where is the heater blower motor resistor located?
The heater blower motor resistor is often found beneath the dashboard. It is located in the heater and air conditioning compartment. It’s connected to the air conditioning system, where it can adjust the speed of the blower motor fan. It can also be found behind the glove box of some vehicles.
What does a resistor do in a heater?
They are designed as a special type of power resistor to provide a reliable and controllable source of heat. A heater resistor can produce convective heat, meaning it heats up the surrounding air, or radiant heat, meaning it heats other objects directly through a phenomenon called infrared radiation.
How much does a heater resistor cost?
It’s time for a blower motor resistor repair. So, how much will you be shelling out to get this part fixed? According to the latest data we received, the average blow motor resistor replacement cost lies between $115 and $141. The final costs will depend on the vehicle that you are driving.
What causes heater resistors to burn out?
In most cases, a blower motor resistor fails due to corrosion or overheating. Sometimes, the mechanical resistance to the motor rotation causes an excessive electric current that can overheat and prematurely damage the blower motor resistor.
How much is a fan resistor?
A blower motor resistor costs anywhere between $1 and $400.
How do you replace a blower motor resistor?
How to Replace a Blower Motor Resistor
- Step 1: Remove the glove box door, if necessary.
- Step 2: Disconnect the wiring harness and remove screws.
- Step 3: Remove and replace the blower motor resistor.
- Step 4: Tighten screws and reattach wiring harness.
- Step 5: Reinstall the glove box door.
How long do blower motor resistors last?
The blower motor resistor is designed to last for the car’s lifespan. In most cases, these resistors will wear out long before the car does. Usually, the wear that the blower motor resistor has is due to the constant use that it gets and the heat that it is exposed on a regular basis.