7773898 Combustion Control Unit 28KW
- Baxi 7773898 Combustion Control Unit 28KW
A Baxi 28kW Combustion Control Unit is a crucial PCB component that manages the air and gas mixture, ensuring safe, efficient burner operation and reduced emissions.
- It monitors combustion, supports reliable boiler performance, and often requires specific flue gas analysis checks for setup.
- Key Functions and Details:
Safety & Efficiency: It regulates the gas/air ratio, which is critical for proper combustion.
Compatibility: Designed for specific 28kW Baxi boiler models
Installation Requirement:
- Following replacement, a, flue gas analysis (CO2, CO levels) must be performed to ensure the gas valve is set correctly.
System Protection:
Acts as a key component to maintain the overall functionality and safety of the heating system.
If this unit fails, the boiler will likely not fire up, necessitating a replacement by a qualified engineer.
Please note some of the clips are broken on the air/combustion intake
Box has been opened for photos














