How to eliminate error A09 in boiler Cointra?
- Error: A09
- Description: Action of over -time protection
- Solution: – Fair return sensor – Water does not circulate in the installation – air in installation
If you fail to resolve the error of your Cointra boiler, we recommend that you contact the technical or boiler specialist more close to your area. They can advise you and help you solve the problem in the best possible way.