Where is a blower motor 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.
Where is resistor located?
It’s located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall. A blower motor resistor or a blower motor control module is the part that controls the speed of the blower motor.
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.
Can I bypass blower resistor?
Bypassing the resistors should run the fan on high speed. High speed requires more DC current, so high speed was fed through a relay and heavier wire to prevent the wire from burning up.
Why is my blower motor not working?
In a situation where the motor doesn’t work on any speed, the most likely causes are: a blown power supply fuse, a bad motor ground connection, bad motor speed control module or a failed motor. On all systems, a failed blower motor is least likely. Start by checking the blower fuse and HVAC controller fuse.
Why is my car not blowing any air?
Your air intake is clogged, meaning that air isn’t getting in from the outside at all or isn’t circulating properly. There is a blown fuse in the ventilation system. Electrical issues such as a bad relay. Damaged blower motor.
How long does it take to replace blower motor in car?
This is around a 4 hour job by an experienced Tech. At home, by a Novice with decent skills, about 5 hours plus!
Can you test a blower motor?
If the blower motor isn’t running you should: Use voltmeter or ohmmeter to check for a blown fuse. If fuse blows again, check for loose circuits. If the circuits are in good repair but the blower motor keeps blowing fuses, replace the blower motor [source: You Fix Cars].