Alpha 1.020831 Flow Switch for CD25C CD28C CD35C HE Boilers

Description

Alpha 1.020831 Flow Switch

The Alpha 1.020831 Flow Switch is a Alpha replacement part designed for selected Alpha CD and HE combination boilers.

The flow switch detects when a hot water tap is opened and sends a signal to the boiler to begin domestic hot water production. A faulty flow switch can prevent the boiler from recognizing hot water demand, leading to intermittent or no hot water.

Replacing a worn or faulty flow switch helps restore reliable boiler operation and ensures a consistent hot water supply.

Compatible Alpha Boilers:

CD25C – GC No. 47-532-31
CD25X – GC No. 47-532-39
CD28C – GC No. 47-532-33
CD28X – GC No. 47-532-37
CD35C – GC No. 47-532-35
HE 25 – GC No. 47-532-41
HE 25 LPG – GC No. 47-532-42
HE 33 – GC No. 47-532-43
HE 33 LPG – GC No. 47-532-44

Please check your boiler model and existing part number before ordering.

What Does a Flow Switch Do?

The flow switch detects water movement when a hot tap is opened. It signals the boiler to ignite and produce domestic hot water while temporarily diverting from the heating circuit.

Collection & Delivery

You can collect this product from our showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG.

We also offer UK delivery options at checkout. Orders placed before the working-day cut-off are prioritized for same-day dispatch, subject to stock availability and courier collection.