Coreco dA Error Code
Dixell XW controller — door-open alarm
Source: Coreco_1592027610-xw60lt-xw60lrt-gb-r10-13022012_termostatos.pdf
What does Coreco dA mean?
On the Coreco controller (Dixell XW30/XW60/XW70), dA is the door-open alarm, raised by the door-switch digital input after the doA delay. When it clears, the compressor and fans restart per the rrd/odC settings.
Symptoms
- Display shows dA
- Buzzer sounds after the doA delay
- Rising cabinet temperature while the door is open
- Fans/compressor may stop while the door is open (per odC)
Common causes
- Door left open beyond the doA delay
- Door not closing fully / misaligned seal
- Door switch stuck or faulty
- Door-switch wiring fault
- Incorrect i1F/i2F door-switch or doA configuration
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Diagnostic steps
Close the door
dA clears when the door is closed; shut the cabinet door fully and confirm the alarm clears and outputs restart.
Inspect the door and switch
Check the door closes and seals, and that the door switch reports closed when shut.
Check the door-input parameters
Verify the digital input is set as a door switch and the doA delay is appropriate.
When to call a professional
If the door is closed and the seal is sound but dA will not clear, the door switch or its wiring is likely faulty; have a qualified technician test/replace it. Electrical access is reserved for qualified personnel.
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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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