Why does my AC blow cold and then hot?

Why does my AC blow cold and then hot?

If your A/C flip-flops from hot to cold and back again, your expansion valve could be failing. The expansion valve distributes the proper amount of refrigerant to your evaporator. If the valve is blocked, the refrigerant flow could be restricted or could be too unrestricted. Your A/C blows warm air.

Why does my a / C stop blowing cold after 20 minutes?

It sounds like the compressor is supplying too much pressure and the metering orifice into the heat exchanger is freezing. Exactly when it stops working, pull over safely, pop the hood and find the aluminum bottle near the back of the engine compartment. It should be covered with condensation, but I’m guessing it’ll be iced over. helpful?

Why does the AC give off cold air and then warm for some?

So you get a surge of cold, then hot, then cold, etc. After the system has been recharged, run the vehicle air conditioner about once a month for about five minutes, even in the winter when it seems unnecessary to use it. This will keep the gas from leaking out in the future.

How can I get my AC to blow hot or cold?

Turn on your A/C to the highest blower setting and let it run 5 minutes, then dial up the heat leaving the blower in highest position for five minutes. this should resent your actuator to correctly blow hot or cold. ..that’s one way to fix it.

Why does the a / C go out after 20 minutes?

Sometimes it will go out again after 20 minutes and sometimes it will work fine for an hour + ride. I had the A/C system evacuated and charged with Freon, It wasn’t low we recovered 1lb 2oz and put back in the same amount. Where do I go from here? What do you think it could be? Thanks for your time and have a great day. Neil have the same problem?

It sounds like the compressor is supplying too much pressure and the metering orifice into the heat exchanger is freezing. Exactly when it stops working, pull over safely, pop the hood and find the aluminum bottle near the back of the engine compartment. It should be covered with condensation, but I’m guessing it’ll be iced over. helpful?

Why is my car AC blowing cold today but warm Tomorrow?

Blowing cold today but warm tomorrow? One of the most difficult automotive air conditioning problems to diagnose is an intermittent A/C problem. In other words, one day your car’s A/C is blowing cold air, the next day it’s warm air.

What kind of AC does not blow cold?

Vocational, Technical or Tra… 2003 Chevy Tracker – AC doesn’t get completely cold. Found/repaired short in relay wiring, so fuse doesn’t blow any more. Freon pressure is … read more Some college and advance… Chevrolet Avalanche 1500 LT: 2010 avalanche not blowing cold. 2010 avalanche not blowing cold.

Sometimes it will go out again after 20 minutes and sometimes it will work fine for an hour + ride. I had the A/C system evacuated and charged with Freon, It wasn’t low we recovered 1lb 2oz and put back in the same amount. Where do I go from here? What do you think it could be? Thanks for your time and have a great day. Neil have the same problem?