Why would the AC on a car not start if it worked last week if you shut the car off and restarted it?

1. What causes car AC to suddenly stop working?
2. Why would my AC stop working then start working again?
3. Why does my air conditioner in my car work sometimes and not others?

What causes car AC to suddenly stop working?

There are several things that can cause electrical problems for your car's air conditioning. These can include failed switches, a blown fuse, a problem with the control module or something else. Fuses can short out and make the A/C stop working or a loose connection can create an electrical short that is easily fixed.

Why would my AC stop working then start working again?

The clogged filter may have caused too much stress on the blower motor and forced the system to turn off. Another common source for short-cycling is a malfunctioning thermostat. ... The thermostat will shut down the cooling cycle before it's finished. Unfortunately, the only way to remedy this problem is to replace the AC.

Why does my air conditioner in my car work sometimes and not others?

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.