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Alpha Plate Heat Exchanger And 3-Way Valve Assembly 3.018556

Alpha

Alpha Plate Heat Exchanger And 3-Way Valve Assembly 3.018556

Plate heat exchanger and 3-way valve assembly for the Alpha He33 (LPG) boiler, part number 3.018556.

At a glance

  • Also known as PLATE-HEAT-EXCH3-WAY-VLV-ASSY, 1260384
Manufacturer part no.
3.018556
Showing prices

£424.50

£353.75 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The plate heat exchanger and 3-way valve assembly is an Alpha component for the He33 (LPG) boiler. It combines the domestic hot water plate heat exchanger with the 3-way valve that diverts boiler water between central heating and hot water modes. Both functions are supplied as a single assembly.

Signs this part needs replacing

  • Domestic hot water runs hot and cold, or fluctuates in temperature
  • No hot water while central heating continues to work
  • Boiler fails to switch between heating and hot water modes
  • Water leaking from the plate heat exchanger or valve body
  • Reduced hot water flow caused by scale or debris in the plate heat exchanger

Before you order

  • Confirm your boiler model is the Alpha He33 (LPG)
  • Check the part number 3.018556 against the existing component
  • Verify the boiler is the LPG variant, as fitment differs from natural gas models

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.