Why does my AC in my car only work sometimes?
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.
Why doesn’t my AC work when it’s hot?
Problem: Your AC unit is blowing air, but it’s room temperature or warm and the room won’t get cool. Fix: Sometimes when an air conditioner runs nonstop to keep up with the heat, the evaporator coil freezes over. Turn off the cooling mode and turn on the fan to let the evaporator coils defrost.
Why does the AC keep blowing normal air?
But sometimes it starts blowing “normal” air instead of cold. To fix that I have to turn OFF and then ON the AC again by pressing the AC button. It seems to me that some contacts somewhere are not really good but I don’t know where to look to permanently fix the problem.
Why does my car air conditioner blow cold then warm?
Any number of culprits could be causing your car A/C to blow cold then warm air, including: A Leak in the A/C System A small refrigerant leak is the most common reason a car’s A/C gradually loses its cool.
What are the symptoms of a bad AC pressure switch?
The most common symptom of a bad AC pressure switch are that you will notice that the AC compressor is cutting on and off rapidly when you are idling your car. These switches between on and off can be noticeable on the engine’s rpm, and you may see or feel fluctuations from it.
Why is my AC intermittent in my Toyota?
To recap ideas, Compressor clutch, compressor bearings, compressor circuitry on head of unit, expansion valve in heater box, switch in cockpit, low freon…. I did tighten the drive belt pretty tight, maybe I have put new, high stresses on the bearings and they are going south… more to follow, keep those cards and letters coming…