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Glow-worm Microswitch + 2 Cable S801199

Glow-worm

Glow-worm Microswitch + 2 Cable S801199

Microswitch with two cables for Glow-worm Compact and Saunier Duval SD 30E gas boilers, part number S801199.

At a glance

  • Also known as 1336601
Manufacturer part no.
S801199
GC number
E27-185
Showing prices

£40.30

£33.58 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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 S801199 is a microswitch supplied with two cables, used in Glow-worm Compact gas boilers. It sits in the boiler's switching circuit, where the contacts signal the control board when an actuator or mechanism reaches its set position. It is a serviceable electrical spare for the Compact range and the Saunier Duval SD 30E.

Signs this part needs replacing

  • Boiler fails to fire or ignite when there is a call for heat
  • Intermittent running — the boiler cuts in and out without a clear fault code
  • Fan, pump or diverter sequence does not start as expected
  • Switch contacts show burning, pitting or a loose lever
  • Cable insulation or terminal connections are damaged or brittle

Before you order

  • Confirm the boiler model and GC number against the appliance data badge
  • Check the existing microswitch for the same number of cables and terminal arrangement
  • Isolate the electrical supply before removing or fitting the switch
  • Inspect the wiring harness and connectors for damage before fitting

Not sure which part?

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