Vaillant
Vaillant Wiring Harness System UK 0020231144
Wiring harness for Vaillant HOME System and Ecofit PURE/Sustain boilers, part number 0020231144.
At a glance
- Also known as 1388212
£12.80
£10.67 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 Vaillant 0020231144 is a wiring harness for the UK system variant of selected Vaillant gas boilers. It carries the low-voltage electrical connections between the boiler's control components. It is used across the HOME System and Ecofit PURE and Sustain appliance families.
Signs this part needs replacing
- Boiler fails to power up or cuts out intermittently
- Fault codes relating to communication or sensor loss
- Visible chafing, scorching or brittle insulation on the harness
- Loose, corroded or damaged plug connectors
- Components such as the fan, pump or sensors not receiving power
Before you order
- Confirm your boiler model and GC number against the fit list
- Inspect the existing harness connectors and routing before removal
- Check that the part number 0020231144 matches the label on the failed harness
Compliance
| Alternative numbers | 1388212 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT HOME SYSTEM 12 -A | 41-044-94 | 41-044-94 | — | — |
| VAILLANT HOME SYSTEM 15 -A | 41-044-95 | 41-044-95 | — | — |
| VAILLANT HOME SYSTEM 18 -A | 41-044-96 | 41-044-96 | — | — |
| VAILLANT HOME SYSTEM 25 -A | 41-044-97 | 41-044-97 | — | — |
| VAILLANT ecoFIT PURE 612 - VU 126/6-3 (2016) | 41-694-03 | 41-694-03 | — | — |
| VAILLANT ecoFIT PURE 615 - VU 156/6-3 (2016) | 41-694-04 | 41-694-04 | — | — |
| VAILLANT ecoFIT PURE 618 - VU 186/6-3 (2016) | 41-694-05 | 41-694-05 | — | — |
| VAILLANT ecoFIT PURE 625 - VU 256/6-3 (2016) | 41-694-06 | 41-694-06 | — | — |
| VAILLANT ecoFIT PURE 630 - VU 306/6-3 (2016) | 41-694-07 | 41-694-07 | — | — |
| VAILLANT ecoFIT SUSTAIN 615 - VU 156/6-3 (2018) | 41-694-30 | 41-694-30 | — | — |
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.
VAILLANT appliance manual — HOME SYSTEM 12 -A (GC 41-044-94), HOME SYSTEM 15 -A (GC 41-044-95), HOME SYSTEM 18 -A (GC 41-044-96), HOME SYSTEM 25 -A (GC 41-044-97)
manualmanualVAILLANT appliance manual — ecoFIT PURE 612 - VU 126/6-3 (2016) (GC 41-694-03), ecoFIT PURE 615 - VU 156/6-3 (2016) (GC 41-694-04), ecoFIT PURE 618 - VU 186/6-3 (2016) (GC 41-694-05), ecoFIT PURE 625 - VU 256/6-3 (2016) (GC 41-694-06), ecoFIT PURE 630 - VU 306/6-3 (2016) (GC 41-694-07)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 615 - VU 156/6-3 (2018) (GC 41-694-30), ecoFIT SUSTAIN 618 - VU 186/6-3 (2018) (GC 41-694-31), ecoFIT SUSTAIN 630 - VU 306/6-3 (2018) (GC 41-694-32)
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