A/C Refrigerant Pressure Sensor Replacement

A/C REFRIGERANT PRESSURE SENSOR REPLACEMENT

REMOVAL PROCEDURE




1. Disconnect the A/C low pressure switch electrical connector.




2. Remove the A/C low pressure switch from the evaporator tube.
3. Remove and discard the O-ring seal from the A/C low pressure switch port on the evaporator tube.

INSTALLATION PROCEDURE




1. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the refrigerant pressure sensor port on the evaporator tube.
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. Slide the new O-ring seal onto the A/C low pressure switch port on the evaporator tube front until the unit is fully seated.

NOTE: Refer to Fastener Notice in Service Precautions.

4. Install the A/C low pressure switch to the evaporator tube.

Tighten
Tighten the A/C low pressure switch to 4.8 N.m (42 lb in).




5. Connect the A/C low pressure switch electrical connector.