Coreco E10 Error Code
Carel RTN400 controller — Clock Alarm
Source: Coreco_rtn400_instruction_sheet_9is24288-1_rel0413_en_termostatos.pdf
What does Coreco E10 mean?
On the Coreco controller (Carel RTN400), E10 is clock Alarm: clock (RTC) battery dead / RTC failure; label E10 recorded in folder ALr; functions associated with clock not available.
Symptoms
- Record shows E10 in the ALr folder
- Clock-based functions (scheduled defrost/time bands) unavailable
- Clock time lost
Common causes
- RTC battery dead
- Real-time-clock failure
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Diagnostic steps
Reset/replace the clock
E10 is the clock alarm; set the time, and if it recurs the RTC battery/board needs attention.
When to call a professional
A persistent RTC failure needs a qualified technician to service the clock/battery.
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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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