Skip the auto shop - Our mechanics make house calls

Q: AC temp knob won't turn all the way to cold.

asked by on

Second time this has happened. I get in car and start it slowly turn on ac and try to move temp knob all the way down to cold and it just stops moving about a quarter way down. Goes all the way to heat just won't go down to max cold.

My car has 5000 miles.
My car has an automatic transmission.

Hello. Your blend door is the part of your vehicle that is responsible for blocking off hot or cold air depending on the preference of the driver. The hot or cold knob on your climate control system is connected to a cable that moves the blend door when it is turned. This cable could have and issue or the blend door is stuck in its position. I would recommend having the climate control unit removed from the vehicle so the cable can be inspected. If the cable is faulty, I would recommend having it replaced by a qualified professional in order to resolve this issue. If you need a proper diagnosis for this, a certified professional from YourMechanic can come to your car’s location to inspect the AC system and guide through with repairs.

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: I tried to recharge my AC and whenever I put the gage in it says 0 I start to recharge it and gage fluctuates and car makes noise

Hi there. It is more than likely that you have either an AC refrigerant leak or that the compressor is damaged. The leak can be caused by damaged low or high pressure hoses, connections or other components that might be...

Q: trying to locate the reset button for the car

The only reset button I can think you are talking about is the fuel pump reset inertia switch. The vehicle you listed does not use one. You have a fuel pump powered by a fuel pump relay in the the...

Q: I am hundai sonota SE 2015 model....I do not have spare wheels. I am planning to buy complete spare wheel. How much it costs

Hi there. Unfortunately we don't sell spare tires and wheels, so we really can't provide you with a correct estimate. In most cases however, a full sized spare tire and wheel new will cost about $150.00. You might want to...

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 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...
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...