
Glow-worm
Glow-worm Wiring Harness Three Way Valve 0020118154
Wiring harness for the three-way valve on Glow-worm Betacom, Easicom and Ultimate gas boilers.
At a glance
- Also known as 1340628
£17.92
£14.93 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 0020118154 is a wiring harness for the three-way valve on selected Glow-worm gas boilers. It carries the control signals from the boiler PCB to the three-way valve, allowing the valve to switch between heating and hot water modes. The harness is used across the Betacom, Easicom and Ultimate appliance families.
Signs this part needs replacing
- The three-way valve does not move, or fails to switch between heating and hot water
- Boiler locks out or reports a fault relating to the valve or diverter
- Heating or hot water works intermittently as the valve signal cuts in and out
- Visible damage to the harness, such as chafed, brittle or heat-damaged insulation
- Loose, corroded or burnt connector at the valve or PCB end
Before you order
- Confirm your boiler model and GC number against the fitment list above
- Check the connector at the valve and PCB matches the harness on your appliance
- Inspect the existing harness for damage before ordering, so the fault is correctly identified
- If your model is not listed, check the manufacturer's parts list for your appliance
Compliance
| Alternative numbers | 1340628 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM BETACOM 2 24 | 47-019-16 | 47-019-16 | — | — |
| GLOWWORM BETACOM 2 28 | 47-019-17 | 47-019-17 | — | — |
| GLOWWORM BETACOM 24 A | 47-019-13 | 47-019-13 | — | — |
| GLOWWORM BETACOM 28 A | 47-019-14 | 47-019-14 | — | — |
| GLOWWORM EASICOM 24 | 47-019-18 | 47-019-18 | — | — |
| GLOWWORM EASICOM 28 | 47-019-19 | 47-019-19 | — | — |
| GLOWWORM GLOWWORM BETACOM 2 24 | — | — | — | |
| GLOWWORM GLOWWORM BETACOM 2 28 | — | — | — | |
| GLOWWORM GLOWWORM BETACOM 24 A | — | — | — | |
| GLOWWORM GLOWWORM BETACOM 28 A | — | — | — |
Showing 10 of 12 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 2 24 (GC 47-019-16)
manualmanualGLOWWORM appliance manual — BETACOM 2 28 (GC 47-019-17)
manualmanualGLOWWORM appliance manual — BETACOM 24 A (GC 47-019-13), BETACOM 28 A (GC 47-019-14)
manualmanualGLOWWORM appliance manual — EASICOM 24 (GC 47-019-18)
manualmanualGLOWWORM appliance manual — EASICOM 28 (GC 47-019-19)
manualmanualGLOWWORM appliance manual — ULTIMATE 30C (GC 47-044-48), ULTIMATE 35C (GC 47-044-49)
manualNo technical questions yet for this part.
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