Skip the auto shop - Our mechanics make house calls

Q: A/c blows cold on max but when you change temp, the air gets warm.

asked by on

When the front a/c is on 60 (max) a/c is very cold. Change the temp to 61 and it blows warm. Blower works fine, compressor kicks on, blend door operating normally, replaced water control cable (properly), and a full evac and recharge on a/c system.

My car has 225327 miles.
My car has an automatic transmission.

There is an issue with the thermostat for the air conditioning system. The adjustment switch to the air conditioning system may be defective and not adjusting the thermostat properly, but instead it is opening the vent to the heater core to change the temperature rapidly. I recommend replacing the thermostat and the switch that controls the thermostat on the air conditioning system. If you need further assistance with your air conditioning system, then seek out a professional, such as one from Your Mechanic, to help you.

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: Why does my car jerk when shift gear? Jerk harder on 3 and 4 gear.

This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various sensors such...

Q: What would cause the temperature gauge in a 1993 geo prism to work fine when idling but when driving it drops to cold ?

Assuming that the temperature gauge and sending unit are in good shape, what may be happening is the engine cooling thermostat may be sticking in the open position causing engine temperature to fall below normal once you are at speed....

Q: Power locking,and unlocking with remote does not work

Hello there, you have several different issues going on with your 2006 Acura MDX. When the window regulator is replaced there is a window reset procedure that must be done, this tells the regulator when the window is fully closed,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.