Coreco LOC Error Code
Dixell XW controller — keyboard locked (display message)
Source: Coreco_dixell_xw30lrh-ingles_termostatos.pdf
What does Coreco LOC mean?
On the Coreco controller (Dixell XW30/XW60/XW70), LOC is a display message meaning the keyboard is locked (it can lock automatically). It is not a fault — it prevents unintended changes to the set point and parameters.
Symptoms
- Display shows LOC when a key is pressed
- Set point / parameters cannot be changed
Common causes
- Keyboard locked automatically
- Keyboard lock enabled by the user
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Diagnostic steps
Unlock the keyboard
LOC means the keypad is locked; unlock it with the keyboard-lock key sequence for the model (the display shows Pon when unlocked).
When to call a professional
LOC is a normal lock state, not a fault, and needs no service.
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Other Coreco Error Codes
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)
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