Skip the auto shop - Our mechanics make house calls

Q: Blower motor resistor melted, replaced it turned on blower motor and it melted again in seconds.

asked by on

What would be causing this to happen? I plan on replacing both the blower motor and the blower motor resistor. Would there be anything else i need go look into as well?

My car has 124000 miles.
My car has an automatic transmission.

The blower motor that is drawing too many amperes will melt the resistor and wiring. Anytime the resistor is melted you should replace the blower along with the resistor and connections that show any heat damage. If you need assistance with this, consider YourMechanic, as one of our mobile technicians can diagnose electrical issue and help you replace the blower motor and resistor as necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Blower motor resistor melted, replaced it turned on blower motor and it melted again in seconds.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car misses

If you have went as far to do compression and leak down, I’ll assume the problem is not obvious. After those tests, you can be almost sure the mechanical components of the engine are good. Is it a random misfire...

Q: Accidentally grounded out hot wire to chassis, now no electric available.

Hello. There are high current fusible links that should be tested before you look at the relays, particularly the circuit opening relay(s). These links are depicted on the factory wiring diagram for the vehicle. Since you short-circuited the battery, it's...

Q: After replacing a bad starter my car will not turn over or fire. The starter cranks but no sounds of it wanting to start.

Hello, thank you for writing in. When you get into this type of situation and are stumped, take the starter back off and retrace your steps as you do. Double check everything including the alignment of the starter to the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...