Glow-worm
Glow-worm Cable Tree Wiring Harness 0020037305
Cable tree wiring harness, part 0020037305, for Glow-worm Ultracom gas boilers.
At a glance
- Part type: cable tree / wiring harness
- Also known as 1338019
£39.47
£32.89 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 cable tree wiring harness, part number 0020037305, is a Glow-worm electrical loom used across the Ultracom range of gas boilers. It carries the low-voltage connections between the boiler's control components, distributing power and signals through a single pre-formed harness. It is a serviceable electrical part, replaced when the loom or its connectors are damaged.
Signs this part needs replacing
- Intermittent faults or random lockouts that clear when the loom is disturbed
- Error codes traced to a broken or high-resistance connection in the harness
- Visible damage to the loom: chafed, scorched or brittle insulation
- Loose, corroded or heat-damaged plug connectors that will not seat securely
- Boiler failing to respond to the controls or to fire when demanded
Before you order
- Confirm your boiler model against the fit list above, including the GC number on the appliance data badge
- Check the part number printed on the existing harness matches 0020037305
- Inspect the connectors and loom routing before ordering, as faults elsewhere can mimic harness failure
- Isolate the electrical supply and follow the manufacturer's instructions before fitting
Compliance
| Barcode / EAN | 5037985015939 |
|---|---|
| Alternative numbers | 1338019 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| GLOWWORM ULTRACOM 18SXi | 41-019-07 | 41-019-07 | — | — |
| GLOWWORM ULTRACOM 24CX | 47-019-06 | 47-019-06 | — | — |
| GLOWWORM ULTRACOM 24CXi | 47-019-01 | 47-019-01 | — | — |
| GLOWWORM ULTRACOM 30CX | 47-019-07 | 47-019-07 | — | — |
| GLOWWORM ULTRACOM 30CXi | 47-019-02 | 47-019-02 | — | — |
| GLOWWORM ULTRACOM 30SXi | 41-019-08 | 41-019-08 | — | — |
| GLOWWORM ULTRACOM 38CXi | 47-019-03 | 47-019-03 | — | — |
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 — ULTRACOM 18SXi (GC 41-019-07)
manualmanualGLOWWORM appliance manual — ULTRACOM 24CX (GC 47-019-06)
manualmanualGLOWWORM appliance manual — ULTRACOM 24CXi (GC 47-019-01)
manualmanualGLOWWORM appliance manual — ULTRACOM 30CX (GC 47-019-07)
manualmanualGLOWWORM appliance manual — ULTRACOM 30CXi (GC 47-019-02)
manualmanualGLOWWORM appliance manual — ULTRACOM 30SXi (GC 41-019-08)
manualmanualGLOWWORM appliance manual — ULTRACOM 38CXi (GC 47-019-03)
manualNo technical questions yet for this part.
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