Diagnosing Control Mismatches and Performance Issues
Many calls concern Ferroli boilers that aren't heating efficiently or respond erratically to thermostats. This is often due to an incompatible thermostat, or incorrect wiring. For Modena and Optimax units, the OpenTherm protocol offers advanced control, but not all thermostats support it. Older Domiproject models have simpler 230V switched live connections. We'll verify your boiler's control input type and check for common issues like incorrect thermostat programming, faulty room sensors, or wiring discrepancies that prevent proper communication, especially for homes with older wiring, typical of the Edwardian terraces along Warrington Road.
- Verify boiler control input (OpenTherm, 230V switched).
- Inspect thermostat wiring and programming.
- Check for sensor faults affecting temperature modulation.
- Assess compatibility with third-party smart controls.

