Symptoms of a Faulty or Faulty Refrigerant Pressure Switch (Sensor)

Common signs include the air conditioner intermittently or not working at all, noise from the system, or warm air blowing out of the vents.

The refrigerant pressure switch monitors the pressure in the air conditioning system to ensure it is working properly. If the pressure gets too low, the switch turns off the air conditioning system. This prevents the compressor from running without lubrication and sends an error signal to the A/C system. There are a few symptoms to look out for if you suspect a bad or faulty refrigerant pressure switch:

1. Air conditioner works intermittently

When you turn on the air conditioner, does it seem to cool the car and then stop working? Or does it not work all the time, but at random times? This means that the switch may not work correctly or have an intermittent failure. Once this happens, have a professional mechanic replace the refrigerant pressure switch so you can be comfortable in your vehicle.

2. Air conditioner not working properly

The air conditioner in your car may not seem cold enough, making you uncomfortable on a hot day. This can be caused by many factors and one of them is a faulty refrigerant pressure switch sensor. During the hot summer months, this can be a safety issue if the outside temperature gets too high. A mechanic can properly diagnose a problem, whether it's a switch or a low coolant charge.

3. Noise from AC system

If the air conditioning system makes a high pitched sound when it is turned on, this is a sign that the pressure switch may be failing. The switch can rattle on different parts of the engine bay, so it's important to check this before other parts are damaged.

4. Warm air blowing

If cold air doesn't come out at all, it could be a problem with the switch or another problem in the air conditioning system, such as a low refrigerant level. The mechanic will check the pressure in the system to make sure it has the correct reading. If it is too high or too low, the sensor is most likely defective. In addition, they can read any codes issued by the computer in order to accurately diagnose the problem.

If your air conditioner is not working properly, making noise or blowing warm air, see a professional mechanic. The refrigerant pressure sensor switch is an important part of keeping you comfortable on hot summer days, so it should be repaired as soon as possible.

AvtoTachki makes it easy to repair a refrigerant pressure sensor by coming to your home or office to diagnose or fix problems. You can order the service online 24/7. Qualified technical specialists of AvtoTachki are also ready to answer any questions you may have.