P6-3 Carrier Controller Pre-trip Test Codes

P6 Tests - Refrigerant Probes, Compressor and Refrigerant Valves Tests: Pass/Fail testing is performed for the compressor, EEV, DUV, LIV (if equipped), ESV, and the refrigerant pressure and temperature sensors..

P6-3 Suction Pressure Sensor Test
If Alarm 66 is active the test fails. Otherwise the test passes.