How to eliminate error A03 in boiler Ferroli?
- Error: A03
- Description: Action of overthemature protection
- Cause:
- 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
More tips
To solve an error in a Ferroli boiler, we recommend contacting the technical or specialist service. If the boiler problem cannot be solved, it may be necessary to replace it.
Other error codes in Ferroli boiler

Troubleshoot error code “F66” in Ferroli boiler
How to eliminate F66 error in boiler Ferroli? Error: F66Description: ABM03 switchboard anomalyCause: Solution: - Internal error of the abm03 switchboard- Control the ground connection and change the switchboard if ...

Troubleshoot error code “F52” in Ferroli boiler
How to eliminate F52 error in boiler Ferroli? Error: F52Description: Heating sensor anomalyCause: Solution: - Change the sensor. More tips If you have problems solving an error in your Ferroli ...

Troubleshoot error code “F47” in Ferroli boiler
How to eliminate F47 error in boiler Ferroli? Error: F47Description: Card parameter anomalyCause: Solution: - Bad card parameter configured More tips First, if you have a problem with your Ferroli ...