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Glow-worm Cable Tree (Harness) 0020038266

Glow-worm

Glow-worm Cable Tree (Harness) 0020038266

Cable tree wiring harness for Glow-worm Ultrapower Sxi 100 and Sxi 170 boilers, part number 0020038266.

At a glance

  • Appliance family: Ultrapower Sxi
  • Also known as 1338289
Manufacturer part no.
0020038266
Showing prices

£67.34

£56.12 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 cable tree (harness) is a wiring loom supplied by Glow-worm for the Ultrapower Sxi range of boilers. It carries the electrical connections between the boiler's control components, routing the wiring as a single pre-formed assembly. It is fitted to the Ultrapower Sxi 100 and Sxi 170 models.

Signs this part needs replacing

  • Intermittent boiler operation or faults that shift when the loom is moved
  • Error codes linked to sensor or control communication
  • Cracked, brittle or heat-damaged insulation on the wiring
  • Discoloured, corroded or loose connector terminals
  • Visible scorching or chafing where the loom passes through the casing

Before you order

  • Confirm your appliance is an Ultrapower Sxi 100 or Sxi 170
  • Check the model and GC number on the boiler data badge against the manufacturer's parts list
  • Inspect the existing harness connectors and routing to confirm the part matches
  • Verify the part number 0020038266 before ordering

Not sure which part?

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