Fault Codes / York

29 codes

YCAS / YVAA

• 1 — Evaporator freeze protection.
• 10 — High DC bus voltage (unit).
• 11 — Low DC bus voltage (unit).
• 12 — DC bus voltage imbalance (unit).
• 13 — High VSD ambient temperature.
• 14 — Compressor motor current overload.
• 15 — VSD power supply fault.
• 16 — VSD logic board fault.
• 17 — Motor current overload (hardware).
• 18 — Phase sequence or phase loss.
• 2 — High ambient temperature.
• 25 — Evaporator leaving water temp sensor fault.
• 27 — High discharge pressure (software).
• 28 — High differential oil pressure.
• 29 — Low differential oil pressure.
• 3 — Low pressure cutout (suction).
• 30 — Low suction pressure.
• 31 — High discharge temperature.
• 33 — Sensor failure.
• 4 — High pressure cutout.
• 41 — High motor current.
• 47 — High discharge pressure (hardware — HPCO high pressure switch).
• 48 — Low suction superheat.
• 5 — High discharge temperature.
• 50 — Low discharge superheat.
• 6 — Invalid number of compressors selected.
• 7 — VSD (variable speed drive) communications failure.
• 8 — Pre-charge low DC bus voltage (unit).
• 9 — Water flow switch open / no flow.