How to eliminate the A03 error in boiler Cointra?
- Error: A03
- Description: Action of temperature protection
- Solution: – Damaged heating sensor. – Control the position and operation of the heating sensor. – Water does not circulate in the installation, control the circulation pump – air in the installation, purge the installation
If you fail to solve your Cointra boiler error, we recommend that you contact a technical or boiler specialist. They can help you solve the problem and give you more information about the maintenance of your boiler.