Compressor HVAC: Testing and Inspection

AIR CONDITIONING: COMPRESSOR AND MAGNETIC CLUTCH: INSPECTION

INSPECTION

1. INSPECT COMPRESSOR LOCK SENSOR






(a) Disconnect the connector from the compressor and magnetic clutch (compressor lock sensor).
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





If the resistance is not as specified, replace the compressor and magnetic clutch.
2. INSPECT COMPRESSOR SOLENOID






(a) Disconnect the connector from the compressor and magnetic clutch (compressor solenoid).
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:





If the resistance is not as specified, replace the compressor and magnetic clutch.
3. INSPECT COMPRESSOR AND MAGNETIC CLUTCH






(a) Disconnect the connector from the compressor and magnetic clutch.
(b) Connect the positive (+) lead from the battery to terminal 1, and the negative (-) lead to body ground, then check that the following occurs: 1) the magnetic clutch's operating sound can be heard, and 2) the magnetic clutch's hub and rotor lock.
Standard:
1) The magnetic clutch's operating sound can be heard
2) The magnetic clutch's hub and rotor lock.
If the result is not as specified, replace the compressor and magnetic clutch.