Why does my AC go from cold to warm?

Why does my AC go from cold to warm?

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 car AC work intermittently?

Intermittent cooling is often caused by the components of your vehicle’s AC system freezing up. Typically an iced over evaporator is the culprit. There may be numerous issues causing the icing—from a dirty cabin air filter to a blocked evaporator drain or an overcharged system.

How do I know if my car air conditioner needs recharging?

5 Signs you need a car air conditioning service

  1. The air isn’t cold.
  2. Bad odour.
  3. It’s making a rattling sound.
  4. Weak or no air coming out.
  5. Condensation.

When did the AC stop working on my Subaru Forester?

Bought the car in August 2016, had a/c failure in September 2017 at less than 10,000 miles. Dealer replaced compressor and condenser. Now, just 11 months later, it has failed again.

What makes up the air conditioning system in a Subaru?

Typical Subaru Air conditioning Problems explained. The Air conditioning (AC) system in your Subaru is made up of the following. A compressor, Condenser, Evaporative (Evap) core, Expansion valve, receiver dryer, hoses and lines, thermo sensor and the controls.

What kind of refrigerant does a Subaru Forester use?

Never before encountered this but ok, it’s been r134 refrigerant in previous cars. This new stuff ought to be very very environmentally safe if it leaks so easily compared to earlier refrigants. It must be made from liquid gold or something as it is so expensive.

Why does my Subaru air conditioner shut down?

So, the radiator kept the engine safe, but when the fans were kicking on, they were blowing A LOT of hot air at the evap unit. That would trip the AC temp sensor and shut down the AC. Yes that will happen if the radiator is clogged enough to limit air flow, thus not allowing the proper temp drop needed to take the heat out of the AC system.

https://www.youtube.com/watch?v=IyqFDCJsPTU