How to eliminate the A11 error in boiler Cointra?
- Error: A11
- Description: Return sensor anomaly
- Solution: – Spoiled sensor. – Short circuit wiring, control the wiring or replace the sensor. – Wiring interrupted
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.