Boiler
Error A11 in Cointra boiler

How to eliminate the A11 error in boiler Cointra?
- Error: A11
- Description: Return sensor anomaly
- Cause:
- Solution: – Spoiled sensor. – Short circuit wiring, control the wiring or replace the sensor. – Wiring interrupted
More tips
If you fail to resolve the error of your Cointra boiler, we recommend that you contact the closest technical service or specialist. They can diagnose the problem and, if necessary, make a repair.
Other error codes in Cointra boiler
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