Table of Contents
- 1 Where is the heater blower resistor located?
- 2 How do you replace a blower motor resistor?
- 3 Will a blower motor work without the resistor?
- 4 What are the signs of a bad blower motor relay?
- 5 What causes heater resistors to burn out?
- 6 How much does it cost to replace a blower motor resistor?
- 7 How much does it cost to fix a blower motor resistor?
Where is the heater blower resistor located?
The heater blower motor resistor is located underneath the dashboard in the heater/AC compartment. The resistor enables the heater blower motor to change the speed of the fan. Without this part you will not be able to change the speed of the airflow from the blower motor.
How do you replace a blower motor resistor?
Difficulty
- Remove the negative battery terminal.
- Locate the blower motor resistor on the passenger side under the dash board.
- Disconnect the electrical connector to the blower motor resistor.
- Remove the screws or bolts to the blower motor resistor and remove the resistor.
- Installation is the reverse of the removal.
Will a blower motor work without the resistor?
If the resistor shorts or fails, it may cause the blower motor to remain stuck on one fan speed. The heating and air conditioning systems may still function at one speed, however the resistor will have to be replaced in order for full functionality to be restored.
How do I know if my heater resistor is bad?
Symptoms of a bad heater blower motor resistor
- Fan does not work at all, so no air comes out of the vents.
- Fan only works on some speeds and not others.
- Fan only works on the highest speed.
- Fan runs all the time and can’t be controlled with the fan switch.
- You see smoke coming out of the vents.
What causes blower motor resistor failure?
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.
What are the signs of a bad blower motor relay?
Symptoms of a bad heater blower motor resistor
- Fan does not work at all, so no air comes out of the vents.
- Fan only works on some speeds and not others.
- Fan only works on the highest speed.
- Fan runs all the time and can’t be controlled with the fan switch.
- You see smoke coming out of the vents.
What causes heater resistors to burn out?
How much does it cost to replace a blower motor resistor?
Blower Motor Resistor Replacement Cost – RepairPal Estimate. Labor costs are estimated between $44 and $55 while parts are priced between $64 and $82. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location. Related repairs may also be needed.
How long does it take to replace a blower motor resistor?
takes about 45 minutes.
What are the signs of a bad blower motor resistor?