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Andrews Secondary Heat Exchanger Kit 7702397

Andrews

Andrews Secondary Heat Exchanger Kit 7702397

Secondary heat exchanger kit for Andrews Fastflo PLUS water heaters, part number 7702397.

At a glance

  • Also known as 1822984
Manufacturer part no.
7702397
Showing prices

£757.15

£630.96 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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 Andrews secondary heat exchanger kit (part number 7702397, model reference WHICX56) is a component for Andrews water heaters. It transfers heat from the primary circuit to the domestic hot water supply. This kit is intended for Fastflo PLUS appliances.

Signs this part needs replacing

  • Reduced hot water temperature or flow at the outlet
  • Water weeping or dripping from the heat exchanger body
  • Visible scale, corrosion or debris on the heat exchanger
  • Repeated appliance lockouts or fault codes relating to heat transfer
  • Unusual noises from the heat exchanger during operation

Before you order

  • Check the appliance rating plate to confirm the model is Fastflo PLUS WHIC56 or LWHIC56.
  • Confirm the existing part number is 7702397 or the model reference is WHICX56.
  • Verify the part against the manufacturer's parts list for your appliance.
  • Consult a qualified heating engineer if you are unsure of compatibility.

Not sure which part?

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