Coreco Troubleshooting Assistant

Control probe (probe 1) error — signal interrupted, short-circuited or incompatible probe

Evaporator / defrost probe (probe 2) error — signal interrupted, short-circuited or incompatible probe

Condenser / product probe (probe 3) error — signal interrupted, short-circuited or incompatible probe

Immediate or delayed alarm from the multifunction digital input (external alarm)

Open-door alarm from the door-switch digital input

Low-temperature alarm — measured temperature below set point by more than parameter AL

High-temperature alarm — measured temperature above set point by more than parameter AH

Unit parameter reading (data) error — saved configuration data error

Operating parameter reading (data) error — manual reset

Defrost ended by timeout — last defrost stopped on maximum duration, not on temperature

Defrost running — status message shown during a defrost cycle (not an alarm)

Dirty-condenser warning/alarm — pre-alarm (cht) between Ac-AE and Ac, then alarm (CHt) when Ac is exceeded and refrigeration stops (manual reset)

Internal clock (RTC) alarm — clock fault; reset by setting the time

Dixell XW controller — room (thermostat) probe failure

Dixell XW controller — evaporator probe failure

Dixell XW controller — third (configurable/display) probe failure

Dixell XW controller — fourth probe failure

Dixell XW controller — high-temperature alarm

Dixell XW controller — low-temperature alarm

Dixell XW controller — condenser high-temperature alarm

Dixell XW controller — condenser low-temperature alarm

Dixell XW controller — door-open alarm

Dixell XW controller — external alarm (digital input)

Dixell XW controller — serious external / pressure-switch alarm

Dixell XW controller — real-time-clock alarm (RTC models)

Dixell XW controller — real-time-clock board failure (RTC models)

Dixell XW controller — no parameter / probe not enabled (display message)

Dixell XW controller — keyboard locked (display message)

Carel KDT-Touch controller — Keypad-to-power-board communication error

Carel KDT-Touch controller — On an RTX-RTN-RTD600 (/V) family power board, the E7 keypad-communicat

Carel RTN400 controller — Probe Pb3 faulty (measured values outside operating range or probe fau

Carel RTN400 controller — Probe Pb4 faulty (measured values outside operating range or probe fau

Carel RTN400 controller — Probe Pb5 faulty (measured values outside operating range or probe fau

Carel RTN400 controller — LINK2 probe faulty (measured values outside operating range or probe f

Carel RTN400 controller — VIRTUAL probe faulty (measured values outside operating range or probe

Carel RTN400 controller — HIGH temperature alarm 1

Carel RTN400 controller — LOW temperature alarm 1

Carel RTN400 controller — HIGH temperature alarm 2

Carel RTN400 controller — LOW temperature alarm 2

Carel RTN400 controller — Door-open alarm

Carel RTN400 controller — End-defrost-by-timeout alarm

Carel RTN400 controller — Preheat alarm

Carel RTN400 controller — Clock Alarm

Carel RTN400 controller — HIGH voltage alarm

Carel RTN400 controller — LOW voltage alarm

Carel RTN400 controller — General pressure switch alarm (n < PEn, Auto Reset)

Carel RTN400 controller — Minimum pressure switch alarm (n < PEn, Auto Reset)

Carel RTN400 controller — Maximum pressure switch alarm (n < PEn, Auto Reset)

Carel RTN400 controller — General pressure switch alarm (n = PEn, Manual Reset)