P6-10 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..

P6-10 Electronic Expansion Valve Test
The test records the suction pressure during the open valve position and passes if the suction pressure increase is above 3 psi when the valve opens for 10 seconds.