Frequent question: How many volts should a car AC compressor get?

You should observe a reading of 12 to 14 volts. If your reading is zero, check the fuse to the AC.

How do 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).

What are the symptoms of a bad car AC compressor?

Symptoms of a bad Ac compressor in a car

• High cabin temperature.
• Loud noise from the AC compressor.
• Moisture leak.
• Compressor clutch stiff or not moving.
• Tripping circuit breaker.
• Broken Suction Lines.

How do I test my AC compressor for problems?

Signs Your Air Conditioner Compressor Is Going Bad

1. The AC compressor won’t turn on.
2. The air conditioner is blowing warm air.
3. The air conditioner frequently trips the circuit breaker.
4. The outside unit shakes when it starts up.
5. The air conditioner is making strange noises.