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Main Motor Cartridge (720003100 / 248733)
The Main Motor Cartridge is the critical internal mechanical component of the diverter valve assembly. It acts as a directional gate, controlled by the actuator motor to divert primary heated water either to the central heating circuit or the domestic hot water (DHW) plate heat exchanger. This cartridge is a professional-grade replacement for part numbers 720003100 and 248733, designed to restore full switching functionality to the boiler's hydraulic system.
Accurate Flow Direction: Ensures the boiler correctly prioritizes hot water demand, preventing heat from "bleeding" into the radiators when not required.
High-Thermal Resistance: Equipped with specialized internal seals and O-rings that maintain integrity under constant thermal cycling.
Maintenance Efficiency: Allows for the repair of the diverter valve without the labor-intensive process of replacing the entire brass manifold body.
Durable Performance: Engineered to resist mechanical sticking caused by system debris, sludge, or limescale buildup.
Compatible Models:
Main Combi Eco Elite 25 — 47-467-01
Main Combi Eco Elite 30 — 47-467-02
Main 25 Eco Elite Combi — 47-467-03
Main 30 Eco Elite Combi — 47-467-04
Main Eco Compact 25 Combi — 47-467-12
Main Eco Compact 30 Combi — 47-467-13
Main Combi 24 HE — 47-474-02
Main Combi 30 HE — 47-474-03
Main 24 System Eco Elite — 41-467-03
Main 28 System Eco Elite — 41-467-04
Main
A00545-02
