Skip the auto shop - Our mechanics make house calls

Q: A.c. running when engine is off.

asked by on

After running the a.c. for awhile I got home turned the engine off and noticed after 20 minutes or so that the a.c. was blowing warm air out of all the vents. What would cause this problem?

My car has 83000 miles.
My car has an automatic transmission.

A: The blower resistor is shorted and causing ...

The blower resistor is shorted and causing the blower to stay on. The resistor is in the blower housing. You will want to have the resistor replaced with a new one in order to remedy this problem.

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!

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: Sounds suddenly in my car

It sounds like you may be having an issue with your power steering system. This issue could be a leak that has formed or a faulty power steering pump. If your power steering system is leaking, when the fluid drops...

Q: Blower motor

It is very likely the problem is in your blower motor assembly itself. If the power and ground supplies are available at the blower motor connector when you turn the dial or switch for the fan and there is no...

Q: rough idle

The fuel injectors on this engine can commonly get carbon buildup on the tips. This will cause the engine to run rough and have hard starts. You should try running top tier fuels in our car that have cleaning abilities...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...