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Johnson & Starley straight heat exchanger kit S00397, beige

Johnson & Starley

Johnson & Starley straight heat exchanger kit S00397, beige

Genuine Johnson & Starley waterways/heat exchanger kit (S00397) for the Eljan-SE and Janus3-SE circulator ranges, in beige.

At a glance

  • Also known as 1691538
  • Gas Safe registered engineer required for appliance work
Manufacturer part no.
S00397
Showing prices

£488.74

£407.28 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

A waterways kit incorporating the heat exchanger for Johnson & Starley Eljan and Janus3 circulators, listed by the manufacturer as a straight heat exchanger kit finished in beige.

Signs this part needs replacing

  • Reduced hot water flow or output from the circulator
  • Water leaking from the heat exchanger or waterways
  • Scale, corrosion or blockage found on inspection
  • Uneven heating or kettling noises from the heat exchanger

Before you order

  • Match the part number and model/GC number of your circulator against the fitment list before ordering
  • Isolate water and gas supplies before removal
  • Gas Safe registered engineer required for appliance work

Not sure which part?

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