What was the problem with my blower motor in 2003?
What was the problem with my blower motor in 2003?
A shop mechanic said it was the blower motor drawing too many amps and it was bad, so I replaced the motor and connector. After replacing the connector again I tried the old resister just to see if it was really dead. It worked fine. Week later the connector melted again ( this is with a new motor).
What are the symptoms of a bad blower motor relay?
3. Melted relay. Another more serious symptom of a problem with the blower motor relay is a burned or melted relay. Relays are exposed to high current loads and can sometimes get hot when they develop problems.
How do you fix a blower motor on a car?
Disconnect the electrical connector at the blower motor and jumper power and ground to the motor, bypassing all the speeds controls. Run a fused jumper from the battery to the power side of the motor and connect a temporary grounding jumper to the other motor terminal.
What causes a fuse to blow on a blower motor?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
What should I do if my blower motor is not working?
If it’s good, refer to a wiring diagram for your vehicle and conduct these tests: Disconnect the electrical connector at the blower motor and jumper power and ground to the motor, bypassing all the speeds controls.
3. Melted relay. Another more serious symptom of a problem with the blower motor relay is a burned or melted relay. Relays are exposed to high current loads and can sometimes get hot when they develop problems.
What kind of blower motor harness do I Need?
. 15-75221,1575221 A/C Blower Motor Resistor Wiring Harness Compatible with 2007-2013 Chevy Silverado Suburban 1500 2500 3500 Avalanche, GMC Sierra Tahoe Yukon Xl, Cadillac Escalade, 2008-2009 Hummer H2 . . Only 2 left in stock – order soon.
What causes a blower motor to overheat?
Decreased airflow causes the blower motor resistor to overheat and fail. Reduced airflow also causes the blower motor to work harder, draw more current and that can cause repeat blower motor resistor failures. Blower motor is drawing too much power. Check the cabin air filter for clogging.
