Fault Codes / Carel

22 codes

ir33 / MPXPRO

• AFr — Antifreeze alarm.
• dA — Delayed alarm from external contact.
• dor — Door open too long.
• E0 — Probe S1 (cabinet temperature) fault.
• E1 — Probe S1 fault.
• E2 — Probe S2 (evaporator/defrost) fault.
• Ed1 — Defrost on evaporator 1 ended by timeout.
• EE — Data memory alarm (EEPROM) — controller shuts down.
• EF — EEPROM error — functioning parameters.
• Etc — Real-time clock fault (RTC).
• HI — High temperature alarm (too warm).
• IA — Immediate alarm from external contact.
• LO — Low temperature alarm (too cold).
• Pd — Maximum pump-down time exceeded.
• rE — Control probe fault.

MPXPRO

• Edc — Communication error with stepper driver
• HA — Type HA HACCP alarm - high temperature during normal operation (delayed by Htd)
• HF — Type HF HACCP alarm - high temperature after power failure (blackout)
• LO2 — Low temperature alarm 2 (second set point St2 / intake probe)
• LOP — Minimum evaporation pressure (LOP) alarm - pressure fallen below threshold
• LSA — Low suction temperature alarm
• LSH — Low superheat alarm, risk of liquid refrigerant return to the compressor