P6-4 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..

P6-4 Compressor Current Draw Test
Compressor current is tested before and 10 seconds after start up. If current does not increase, the test fails. P6-7 is run at the end of P6-4. If this test fails, P6-6 is skipped.