Q: A/C blows only hot air

asked by on

Our summers are so hot and that’s all I get from my A/C - HOT air!! No matter what temp I set, it’s only hot air. I talked to the dealership and they think it’s a module. If so, I want to replace it myself. Do you agree with their assessment and can you tell me how to install it?

Hello. This can be a module, but it can also be an issue within the system. I typically check the system pressures first. If the pressures are fine and are functioning right then the actuators under the dash need to be checked. If those are also fine then the module is more than likely the issue. If the module needs to be replaced then you can install a new one, but it would need to be programmed to the vehicle otherwise it would not work. This would have to be done with the right computer scan tool. If you need to have this fixed, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the cause of the issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. A/C blows only hot air

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 took out a performance chip that was in a car I had just bought. Now I am getting codes po 135 ,po 161 . Would removing that chi

To determine if removal of the chip was relevant to the present codes would require a lot more information and investigation. If, by chance, you noticed a literally "immediate" effect, obviously a not unreasonable supposition is there is a connection....

Q: New alternator, car not starting in the cold

As you may know, cold weather is extremely tough on batteries. Depending on the strength of the charge, you may not have charged the battery sufficient to a point for it to hold a charge. Generally, for a battery to...

Q: 2005 Mercedes-Benz Sprinter 2500

The Check Engine light must be reset by a Scan/Clear tool that supports the Sprinter. The computer will not reset it on its own.

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...
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...
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...