Vaillant
Vaillant Wiring Harness 0020195581
Vaillant wiring harness 0020195581 for selected HOME, Ecofit and Ecotec PLUS gas boilers.
At a glance
- Part type: wiring harness
- Also known as 1387942
£9.42
£7.85 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 0020195581 is a wiring harness used across a number of Vaillant gas boiler models. It carries low-voltage control and sensor connections between the boiler's electrical components and the main PCB. It is supplied as a spare part for service and repair work.
Signs this part needs replacing
- Connectors that are charred, melted or discoloured at the plug ends
- Cracked or brittle insulation, or exposed conductor visible along the loom
- Intermittent faults, random lockouts or error codes that clear when the loom is disturbed
- Boiler failing to fire or components not receiving a signal despite testing sound individually
- Rodent damage or chafing where the harness runs against sharp metalwork
Before you order
- Confirm your boiler model and GC number against the fit list above
- Inspect the existing harness and note the number and layout of its connectors
- Check the part number printed or labelled on the harness being removed
- Verify the fault is in the harness rather than the PCB or the component it feeds
Compliance
| Alternative numbers | 1387942 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT HOME COMBI 35 -A | 47-044-64 | 47-044-64 | — | — |
| VAILLANT HOME REGULAR 30 -A | 41-044-93 | 41-044-93 | — | — |
| VAILLANT VU 306/6-5 OV | 41-044-75 | 41-044-75 | — | — |
| VAILLANT VU 306/6-5 OVZ | 41-694-17 | 41-694-17 | — | — |
| VAILLANT VU 356/6-5 OVZ | 41-044-76 | 41-044-76 | — | — |
| VAILLANT ecoFIT PURE 430 - VU 306/6-3 OV (2016) | 41-694-12 | 41-694-12 | — | — |
| VAILLANT ecoFIT PURE 435 - VU 356/6-3 OV (2016) | 41-694-19 | 41-694-19 | — | — |
| VAILLANT ecoFIT PURE 630 - VU 306/6-3 (2016) | 41-694-07 | 41-694-07 | — | — |
| VAILLANT ecoFIT PURE 835 - VUW 356/6-3 (2016) | 47-044-70 | 47-044-70 | — | — |
| VAILLANT ecoFIT SUSTAIN 430 - VU 306/6-3 OV (2018) | 41-694-35 | 41-694-35 | — | — |
Showing 10 of 15 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 COMBI 35 -A (GC 47-044-64)
manualmanualVAILLANT appliance manual — HOME REGULAR 30 -A (GC 41-044-93)
manualmanualVAILLANT appliance manual — VU 306/6-5 OV (GC 41-044-75), ecoTEC PLUS 430 VU 306/6-5 OV (2015) (GC 41-044-75)
manualmanualVAILLANT appliance manual — VU 306/6-5 OVZ (GC 41-694-17), VU 356/6-5 OVZ (GC 41-044-76), ecoTEC PLUS 430 VU 306/6-5 OVZ (2016) (GC 41-694-17), ecoTEC PLUS 435 VU 356/6-5 OVZ (2016) (GC 41-044-76)
manualmanualVAILLANT appliance manual — ecoFIT PURE 430 - VU 306/6-3 OV (2016) (GC 41-694-12), ecoFIT PURE 435 - VU 356/6-3 OV (2016) (GC 41-694-19)
manualmanualVAILLANT appliance manual — ecoFIT PURE 630 - VU 306/6-3 (2016) (GC 41-694-07)
manualmanualVAILLANT appliance manual — ecoFIT PURE 835 - VUW 356/6-3 (2016) (GC 47-044-70)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 430 - VU 306/6-3 OV (2018) (GC 41-694-35)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 630 - VU 306/6-3 (2018) (GC 41-694-32)
manualmanualVAILLANT appliance manual — ecoFIT SUSTAIN 835 - VUW 356/6-3 (2016) (GC 47-044-73)
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