Q: Cabin fan inop - no heat or A/C

asked by on

Blower fan inop. Heat and A/C not blowing at all. Fuses checked out ok. Next step was to determine if it is the blower motor transistor or the blower motor. Replaced the blower motor transistor since it is cheaper. I did this in the parking lot of the auto parts store and it worked!...or so I thought. As I was driving home from the auto parts store, it went out again. Now I am unsure what to do next. Please help.

My car has 180000 miles.
My car has a manual transmission.

While you have it turned on, try wiggling the wires to the resistor and blower motor to see if you have a poor wire connection. If it still will not come on again, then you may have burned out the blower resistor due to the blower motor being bad and drawing too much power. You may have to replace the blower and resistor at the same time. If you would like to have this checked, a qualified professional from YourMechanic can come to your home or office to diagnose the AC system and verify what needs repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Cabin fan inop - no heat or A/C

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: Replaced radio with car specific replacement with CAN module and the security light blinks and engine starts then cuts off. Will t

Hi Wayne. Thanks for submitting the question today. Unfortunately, we're not able to offer repair advice when any aftermarket components are installed, as we focus solely on OEM service, repair and maintenance solutions for cars, trucks and SUV's sold in...

Q: Q: Transmission is going out

Hi, has the transmission fluid been checked recently? If the fluid is low, the transmission won't be able to engage gears properly and can act sluggish. Other owners of Accords have reported issues with their transmissions so if the fluid...

Q: Green light doesn't come on when shifter is placed in drive

Each transmission range display has a separate bulb that lights up. The instrument cluster can be removed and the bulbs can be replaced individually. My recommendation would be to enlist the help of a mechanic, such as one from YourMechanic,...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.