Why would my car AC 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 is my car air conditioner not blowing cold air?

The most common causes of broken air conditioning are leaks or compressor issues. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC.

What to do if your AC in your car isn’t working?

What to Do If Your Car Air Conditioner Stops Working
  1. DO: Call your mechanic. AC systems are complicated, so to fix the problem as soon as possible without damaging your car, contact a trustworthy auto technician. …
  2. DON’T: Attempt to solve the problem yourself with canned freon. …
  3. DO: Look into possible causes.

Why does my heat work but not my AC in my car?

This can be due to a choked cabin air filter, a failed thermostat valve, or a faulty heater core. How do I fix a car heater blowing cold air? Start by changing the cabin air filter, and if that doesn’t work, replace the thermostat valve. If that doesn’t do it, change the heater core.

How do I know if my car AC fuse is blown?

How do I know if my car AC compressor is bad?

Four Signs Your Car’s AC Compressor Is Going Bad
  1. Odd Sounds. You might hear some strange noises when you flip on your vehicle’s air conditioner and if you do, it’s probably the compressor. …
  2. Hot Air. The whole point of turning on your vehicle’s AC is to get cold air to come through the vents. …
  3. Fluid Leaks. …
  4. Stuck Clutch.

Can a blown fuse cause AC not to work?

First of all, your electrical system might be having problems. … While this prevents serious trouble such as electrical fires, it also means that a single blown fuse can cause the entire air conditioner to stop working.

Why is my AC running but not blowing air?

If your air handler is running but not blowing air, there are two likely scenarios; either a broken AC blower belt or an issue with the motor itself. … If the motor is running, but it is not moving any air, then you’ll want to look to see if the blower belt is broken.

How can I test my car AC compressor?

Turn on the AC. Connect a pressure gauge to the low side of the AC compressor, typically found on the firewall passenger side in the engine compartment. Add approximately 2 oz. of Freon to determine whether the compressor kicks on (if it does, you will hear a loud click followed by a puttering sound).

How do I know if my AC compressor or clutch is bad?

Bad AC Compressor Clutch Symptoms
  1. Higher Cabin Temperatures. The most common sign of all bad ac compressor clutch symptoms is a higher cabin temperature than usually during hot days when you need the A/C. …
  2. Loud Noises. …
  3. Clutch Stopped Moving. …
  4. Inability to Turn Air On or Off. …
  5. Leaking Refrigerant.

How much does it cost to replace an AC compressor in a car?

How Much Does Car A/C Compressor Repair and Replacement Cost? Car a/c compressor replacement costs about $994 for car a/c compressor with average prices of car a/c compressor ranging from $842 for a compressor to $1146 for car a/c compressor in the US for 2020, according to Repairpal.com.

How do I know if my AC compressor is locked?

5 Symptoms of AC Compressor Failure
  1. The compressor doesn’t turn on at all.
  2. The system is blowing warm air.
  3. The system keeps tripping the circuit breaker.
  4. The outside unit shakes when it starts up.
  5. The outside condensing unit is making strange noises.

How do I know if my AC compressor has power?

Here is how to check the compressor motor if you suspect it has failed;
  1. Disconnect power.
  2. Remove the top of the outdoor condensing unit.
  3. Unplug the 3-prong plug on the compressor.
  4. Set your multimeter to ohms.
  5. Measure and record the resistance (ohms) measurement of each winding.

How long do car AC compressors last?

eight to ten years
It has been estimated that an A/C compressor can last from eight to ten years. Many drivers will then say that they will not need to change their A/C compressor at all since this number denotes the life of the car.

Can I drive with a broken AC compressor?

If you are a driver and always wonder if you can drive the vehicle without or with a bad AC compressor, you are not alone; many drivers ask the same question. But the answer is yes, you can drive with a bad AC compressor, although it depends on what you want from the compressor service provider.

Can I just replace the AC compressor in my car?

The gas can be cooled by immersing the coil in water or by a fan. Typically, replacing a compressor should be done by a professional, but you can perform this task at home if you are competent working with your hands. Doing the job yourself can also save you a decent amount of money.

Do car AC compressors wear out?

Air-conditioning compressors often last the life of a vehicle, but they can fail because bearings wear out, seals leak and long-term corrosion takes its toll, plus other factors. If a compressor does need to be replaced, it should be a one-and-done fix, not something that occurs every 50,000 miles.

How can I make my car AC compressor last?

To keep your car’s compressor in shape throughout the year, it’s recommended that you run the A/C compressor regularly, to keep the system working properly and to extend its longevity. Many cars use the A/C compressor for functions of heating and ventilation in the defrost cycle, too.

How often does car AC need to be recharged?

When is it time to add or replace the refrigerant? You could be proactive and have it done before you experience problems, but you shouldn’t need that more often than every few years at most. If your air conditioning is losing its potency even after topping it off, then you probably have a leak.