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Where is the AC compressor low pressure switch?
The AC low-pressure sensor is located at the line that runs from the compressor component of the system through the evaporator or the firewall of the system, up to the condenser on the low-pressure side of the air conditioning system.
What does a AC low pressure switch do?
The low pressure switch monitors the refrigeration system for a loss of refrigerant charge, and may also be helpful in stopping the evaporator (indoor) coil from freezing up due to a dirty filter or low airflow over the coil.
How do you replace a pressure switch on an air conditioner?
Secondly, how do you replace a pressure switch on an air conditioner? Step 1: Locate the A/C pressure switch. Step 1: Disconnect the negative battery cable. Step 2: Remove the switch electrical connector. Step 3: Remove the switch. Step 1: Install the new switch. Step 2: Reinstall the electrical connector.
How can you bypass an AC high pressure switch?
Step 1: Remove the Refrigerant. Replacing the air conditioner compressor pressure switch, requires that you remove the refrigerant in the system first. Step 2: Replace the Pressure Switch. Step 3: Remove Moisture. Step 4: Re-apply Refrigerant. Step 5: Testing.
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
What happens when you replace a pressure switch?
The most common symptom of a failed A/C pressure switch is an inoperative compressor and lack of A/C. In order to safely and efficiently replace your A/C pressure switch you need a couple of basic tools: