How to eliminate F35 error in boiler Cointra?
- Error: F35
- Description: Anomalous network frequency
- Solution: Problems in the electricity grid. Control the electrical installation
If you fail to solve the boiler Cointra error, we recommend that you contact the closest technical or specialist service. In most cases, the problem can be easily solved and will not require a visit from a technician. However, if the problem persists or is more complicated than you think, it is better to call a professional to