Glow-worm
Glow-worm Hydraulic Block 0020186165
Hydraulic block with R-DIN inlet for Glow-worm combi boilers, part number 0020186165.
£57.14
£47.62 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 0020186165 is a hydraulic block with an R-DIN inlet, used on a range of Glow-worm combi boilers. It forms part of the boiler's water circuit, where the diverter valve and flow sensing components are housed. The block manages the changeover between domestic hot water and heating operation.
Signs this part needs replacing
- Domestic hot water temperature fluctuating or running cold while the heating circuit stays hot
- Diverter valve sticking, so the boiler fails to switch between heating and hot water modes
- Water weeping or tracking from the block or its inlet connections
- Scale or debris build-up inside the block restricting flow
- Flow sensor faults or intermittent hot water delivery traced to the block assembly
Before you order
- Confirm your boiler model against the Fits list above
- Check the part number on the existing component matches 0020186165
- Verify the inlet configuration on your appliance is the R-DIN type
- Isolate the water and gas supplies and depressurise the system before removal
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM BETACOM 3 24C | 47-019-41 | 47-019-41 | — | — |
| GLOWWORM BETACOM 3 30C | 47-019-42 | 47-019-42 | — | — |
| GLOWWORM BETACOM 4 24C | 47-019-52 | 47-019-52 | — | — |
| GLOWWORM BETACOM 4 30C | 47-019-53 | 47-019-53 | — | — |
| GLOWWORM EASICOM 2 24C | 47-019-22 | 47-019-22 | — | — |
| GLOWWORM EASICOM 2 24C | — | — | — | |
| GLOWWORM EASICOM 2 28C | — | — | — | |
| GLOWWORM EASICOM 2 28C | 47-019-23 | 47-019-23 | — | — |
| GLOWWORM EASICOM 3 24C | 47-019-50 | 47-019-50 | — | — |
| GLOWWORM EASICOM 3 28C | 47-019-51 | 47-019-51 | — | — |
Showing 10 of 39 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
GLOWWORM appliance manual — BETACOM 3 24C (GC 47-019-41), BETACOM 3 30C (GC 47-019-42)
manualmanualGLOWWORM appliance manual — BETACOM 4 24C (GC 47-019-52), BETACOM 4 30C (GC 47-019-53)
manualmanualGLOWWORM appliance manual — EASICOM 2 24C (GC 47-019-22), EASICOM 2 28C (GC 47-019-23)
manualmanualGLOWWORM appliance manual — EASICOM 3 24C (GC 47-019-50), EASICOM 3 28C (GC 47-019-51)
manualmanualGLOWWORM appliance manual — ENERGY 25C (GC 47-019-24), ENERGY 30C (GC 47-019-25), ENERGY 35C (GC 47-019-26)
manualmanualGLOWWORM appliance manual — ESSENTIAL 24C (GC 47-019-27), ESSENTIAL 28C (GC 47-019-28)
manualmanualGLOWWORM appliance manual — ESSENTIAL 24C - P (GC 47-019-39)
manualmanualGLOWWORM appliance manual — SUSTAIN 25C (GC 47-019-32), SUSTAIN 30C (GC 47-019-33), SUSTAIN 35C (GC 47-019-34)
manualmanualGLOWWORM appliance manual — ULTIMATE 2 30C (GC 47-019-35), ULTIMATE 2 35C (GC 47-019-36)
manualmanualGLOWWORM appliance manual — ULTIMATE 3 30C (GC 47-019-55), ULTIMATE 3 35C (GC 47-019-57)
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