Coreco EA Error Code
Dixell XW controller — external alarm (digital input)
Source: Coreco_1592027610-xw60lt-xw60lrt-gb-r10-13022012_termostatos.pdf
What does Coreco EA mean?
On the Coreco controller (Dixell XW30/XW60/XW70), EA is the external alarm signalled through a digital input configured as EAL (i1F/i2F=EAL). The output is unchanged; the controller flags the condition reported by the external device.
Symptoms
- Display shows EA
- Buzzer sounds
- An external device wired to the digital input has signalled a condition
Common causes
- External device wired to the digital input signalled an alarm
- Digital input contact changed state per its polarity (i1P/i2P)
- Fault in the connected external device
- Incorrect i1F/i2F (EAL) or did delay configuration
- Wiring problem on the digital input
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Diagnostic steps
Identify the external source
EA is an external alarm from a digital input set to EAL. Check the device wired to that input to see what it flagged.
Check the input configuration
Verify the input polarity (i1P/i2P) and the did alarm delay are correct.
When to call a professional
Because EA originates from an external device wired into the controller, have a qualified technician trace the source if it is not obvious or recurs; electrical access is reserved for qualified personnel.
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Other Coreco Error Codes
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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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