What does it mean when your AC pressure switch is failing?
However remember the important role in managing the pressure of the refrigerant as it works through the AC System that the AC Pressure Switches play. This means that if one or, even worse, both switches are failing then the AC system will be receiving incorrect pressure readings from either the high or low side of the system.
Where are the low and high AC pressure switches located?
The low-pressure side switch is found before the AC compressor, while the high-pressure switch comes after the compressor. Most AC pressure switches are found within the engine compartment, but some manufacturers put them elsewhere. A look in your service manual will show you the appropriate location for your model. AC Pressure Switch Function
How much does a bad AC pressure switch cost?
Take the pressure sensor off and test the connection heading to the sensor from the electrical harness. Make sure your key is turned on to the accessories spot. When the electrical connection is working as it should, the multimeter will read between 4.0 and 5.0 volts. The bad AC pressure switch replacement cost falls between $50 and $300.
Is the AC pressure switch the same as the fuse?
So really, you can look at the AC Pressure Switch as working in the same way as a fuse in an electrical circuit. It is a cheap component that is designed to monitor the operation of the far more complex (and far, far more expensive) system that it is plugged into.
What happens when an AC pressure switch fails?
Unable to cool the car If either of the AC pressure switches fails, then the system will have a difficult time maintaining the pressure required to function properly. If the pressure is not right, then the AC system will not be able to produce the cold air required to adequately cool the cabin.
The low-pressure side switch is found before the AC compressor, while the high-pressure switch comes after the compressor. Most AC pressure switches are found within the engine compartment, but some manufacturers put them elsewhere. A look in your service manual will show you the appropriate location for your model. AC Pressure Switch Function
What are the signs of a bad air conditioner switch?
Common signs of failure include a bad compressor or lack of AC. Air conditioning pressure switches are designed to protect the A/C system against pressure that is too high or too low. There are both high pressure and low pressure switches; some vehicles are equipped with just a high pressure switch while others have both.
How can I replace my a / C pressure switch?
In order to safely and efficiently replace your A/C pressure switch you need a couple of basic tools: Free repair manuals – Autozone provides free online repair manuals for certain makes and models Step 1: Locate the A/C pressure switch. The pressure switch can be mounted to A/C pressure line, compressor or accumulator/drier.