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Potterton Diverter Valve Motor Cartridge (720003100 / 248733)
The Potterton Diverter Valve Cartridge is the primary internal mechanism responsible for directing heated water to either the central heating system or the domestic hot water circuit. As a key part of the 3-way valve assembly, it is actuated by the diverter motor to ensure priority is given to hot water demand. Replacing this cartridge is the standard solution for fixing "let-by" issues—where radiators get hot while using the shower—or when the boiler fails to switch between modes.
Fluid Directional Control: Ensures seamless transitions between heating and hot water for optimized boiler performance.
High-Performance Sealing: Features specialized O-rings designed to maintain a watertight seal under high thermal stress and hydraulic pressure.
Durable Engineering: Manufactured to resist the buildup of system sludge and limescale, extending the life of the diverter assembly.
Direct Compatibility: A genuine-quality replacement for Potterton part numbers 720003100 and 248733 (also fits 7656807 and 5118381).
Compatible Models:
Potterton Gold 24 HE Com — 47-590-05
Potterton Gold 28 HE Combi — 47-590-06
Potterton Gold 33 HE Combi — 47-590-19
Potterton Performa 24I HE — 47-393-12
Potterton Performa 28I — 47-393-08
Potterton Promax Combi 24 HE Plus — 47-393-17
Potterton Promax Combi 24 HE Plus A — 47-393-21
Potterton Promax Combi 24 HE Plus LPG — 47-393-24
Potterton Promax Combi 28 HE Plus — 47-590-04
Potterton Promax Combi 28 HE Plus A — 47-393-22
Potterton Promax Combi 33 HE Plus — 47-590-03
Potterton Promax Combi 33 HE Plus A — 47-393-23
Potterton HEATMAX COMBI 24 HE
Potterton HEATMAX COMBI 28 HE
Potterton HEATMAX COMBI 33 HE
Potterton PROMAX COMBI 24 ERP
Potterton PROMAX COMBI 28 ERP
Potterton PROMAX COMBI 33 ERP
Potterton Titanium 24 Combi Erp
Potterton Titanium 28 Combi Erp
Potterton Titanium 33 Combi Erp
Potterton Titanium 40 Combi Erp
Potterton
A01702-02
720003100
