Glow-worm
Glow-worm Membrane S801191
Diverter valve membrane for Glow-worm Compact gas boilers, replacing earlier code 801191.
At a glance
- Part type: diverter valve membrane (diaphragm)
- Also known as MEMBRANE, 1336593
£11.32
£9.43 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Glow-worm S801191 is a diverter valve membrane (diaphragm) for Glow-worm Compact gas boilers. It sits inside the diverter valve assembly and flexes to switch the boiler between domestic hot water and central heating operation. This part replaces earlier code 801191.
Signs this part needs replacing
- No hot water, or hot water only intermittently, while the boiler fires
- Domestic hot water temperature fluctuating or running cold
- Diverter valve failing to switch between heating and hot water
- Membrane visibly stretched, split or perished
- Water leaking from the diverter valve body
Before you order
- Confirm your boiler model against the fitment list above
- Check the GC number on the appliance data badge
- Inspect the diverter valve assembly for wear before fitting
- Confirm the existing membrane is the cause of the fault
Compliance
| GC number | E27-176 |
|---|---|
| Barcode / EAN | 4024074501382 |
| Alternative numbers | MEMBRANE, 1336593 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM COMPACT 100 SEALED SYSTEM | 41-047-26 | 41-047-26 | — | — |
| GLOWWORM COMPACT 100E | 47-047-08A | 47-047-08A | — | — |
| GLOWWORM COMPACT 60 SEALED SYSTEM | 41-047-27 | 41-047-27 | — | — |
| GLOWWORM COMPACT 75E | 47-047-06A | 47-047-06A | — | — |
| GLOWWORM COMPACT 80E | 47-047-07A | 47-047-07A | — | — |
| GLOWWORM GLOWWORM COMPACT 100E | — | — | — | |
| GLOWWORM GLOWWORM COMPACT 75E | — | — | — | |
| GLOWWORM GLOWWORM COMPACT 80E | — | — | — |
Documents & drawings
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