Refrigerant Pressure Sensor / Switch: Testing and Inspection
A/C PRESSURE TRANSDUCERINSPECTION
1. Measure the pressure of high pressure line by measuring voltage output between No.1 and No. 2 terminals.
2. Inspect the voltage value whether it is sufficient to be regular value or not.
Voltage = 0.00878835 * Pressure (Psig) + 0.5
3. If the measured voltage value is not within specification, replace the A/C pressure transducer.