Skip the auto shop - Our mechanics make house calls

Q: will a bad compressor cause the fan to not come on? No fan, no cool air?

asked by on

My fan does not come on at all, the blower blows when I change the setting for the vent, but the air is hot on all settings. I was told that the compressor and condenser need to be changed but from what I read that is not telling me why my fan is not coming on.. Mechanic said he checked the fuse and the relay switch

My car has 192300 miles.
My car has an automatic transmission.

A: The A/C fan for the condenser will not come...

The A/C fan for the condenser will not come on if the A/C compressor does not come on. The fan will only come on when the pressure of the A/C system is detected. This is likely why it is not coming on, but it will need to be verified after A/C repairs are made. If you want to have this done, a certified technician from YourMechanic can come to your car’s location to diagnose your AC issue and replace your A/C compressor if 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!

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: My door does not lock or unlock. Would I need to replace a fuse or buy a new key?

I believe the door lock actuator has failed, not a fuse or key. BMW door lock actuators (part electric, part mechanical) have what is essentially a two-stage lock, and can fail and become "double-locked". Sometimes, exercising the "unlock/lock/unlock" cycle multiple...

Q: My actuator works backwards

Hello. We will need to observe several other factors in order to pinpoint what the issue is. When you say you are turning on the vents, what setting are you turning on when this happens? Is it all temperature settings...

Q: Safety belt and airbag warning lights on - 2010 BMW 538xi

The SRS system should have faults read out but based on your description, the seat mat sensor in the passenger is most likely the cause. The seat occupancy sensor is used in both determining air bag deployment and seatbelt pyrotechnic...

Related articles

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...