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Glow-worm Diverter Valve Motor 0020118640

Glow-worm

Glow-worm Diverter Valve Motor 0020118640

Three-way diverter valve motor for Glow-worm Betacom, Easicom and Ultimate combi boilers.

At a glance

  • Part type: three-way diverter valve motor
Manufacturer part no.
0020118640
Showing prices

£96.83

£80.69 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 Glow-worm 0020118640 is a three-way diverter valve motor used on Glow-worm combi boiler ranges. It drives the diverter valve head to switch the boiler between domestic hot water and central heating operation. This part supersedes 0020061621.

Signs this part needs replacing

  • No hot water while the heating is running, or heating running when only hot water is demanded
  • The valve head does not move when the boiler changes mode
  • Motor hums or buzzes but the spindle does not turn
  • Valve stuck in one position, giving constant heating or constant hot water
  • Intermittent hot water and heating switching faults

Before you order

  • Confirm your boiler model and GC number against the fit list above
  • Check the part number on the existing motor before ordering
  • Inspect the valve body and spindle for stiffness or debris, as a seized body can damage a new motor
  • Isolate the electrical supply to the boiler before fitting

Not sure which part?

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