Skip the auto shop - Our mechanics make house calls

Q: Blower motor only works on high and wont shut off

asked by on

I recently replaced the blower motor control module and the 3 wire electrical connector that plugs into it because the old ones were melted and blower motor wouldnt work. Now the blower only works on high and will not shut off with climate controls turned off and ignition turned off. Any ideas?

My car has 178000 miles.
My car has an automatic transmission.

A: Hello, thanks for writing in about your Jee...

Hello, thanks for writing in about your Jeep Grand Cherokee. The blower control module and connector got hot and burned from the blower motor drawing too much power. It should be replaced to fix this issue. Your A/C blower switch may also be bad or have a melted connector. I recommend replacing the blower motor before anything else is done. If you'd like to get this fixed, have a certified technician, like one from YourMechanic, diagnose the issue with your A/C and make the necessary repairs to your car.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Interior lights staying on

It is possible that you may have some broken wires in your driver side door. There is a group of wires that run from inside the driver side door to the inside of the car. Every time your door opens...

Q: On start AC is working fine, after 5-10 mins i am starting to hear loud fast clicking noises.!?

The compressor clutch on the vehicle may be caused by an excessive clutch to pulley gap or an excessive resistance in the compressor field coil. A check on the gap in the pulley to clutch can be performed by using...

Q: Changed fuel tanks, getting P0183 OBD code now.

Hello, thanks for writing in. Code P0183 is the code for a fuel temperature sensor A circuit, high input. This code is set off when the computer detects that the sensor is out of range. In the particular instance 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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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.