The Baxi 5114783 Wiring Harness for Fan/Ignitor is a genuine replacement electrical assembly designed to connect the fan and ignition components to your boiler’s main control board. This harness carries power and control signals that allow the fan to deliver proper combustion air and the ignitor to produce a reliable spark for burner start-up. A damaged, brittle or corroded wiring harness can cause intermittent faults, ignition failures or fan operation issues, so fitting the correct OEM harness helps restore reliable electrical communication and safe operation.

This wiring harness is compatible with Baxi Duo-Tec, Megaflo and Platinum Combi series boilers that specify part number 5114783 in their technical documentation. To ensure correct fitment and dependable performance, always verify the part number on your existing harness or consult your boiler’s service information before installation, as harness connections and lengths can vary between models and configurations.

Supplied ready for direct replacement, the 5114783 Wiring Harness integrates seamlessly with the boiler’s existing connectors and mounting points without modification when installed by a qualified engineer. Choosing this genuine Baxi component helps restore proper electrical connection for the fan and ignitor, supporting dependable ignition and airflow performance in compatible Duo-Tec, Megaflo and Platinum Combi boilers.