Refrigerant Pressure Sensor / Switch: Service and Repair

Removal Procedure





1. Disconnect the refrigerant pressure sensor electrical connector.





2. Remove the pressure sensor (1) from the evaporator tube - front.
3. Remove and discard the O-ring seal from the sensor port on the evaporator tube - front.

Installation Procedure

1. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the sensor port on the evaporator tube - front and the refrigerant pressure sensor.
2. Lightly coat the new O-ring seal with mineral base 525 viscosity refrigerant oil.

Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the O-ring seal to enter the refrigerant system.

3. Carefully slide the new O-ring seal onto the sensor port on the evaporator tube - front until seated.





4. Install the pressure sensor (1) to the evaporator tube - front.

Tighten
Tighten the refrigerant pressure sensor to 4.75 N.m (42 lb in).





5. Connect the pressure sensor electrical connector.