Vaillant
Vaillant Wiring Harness 0020210204
Wiring harness with coding resistor, part number 0020210204, for Vaillant VU and VUW 306/5-5 and 356/5-5 appliances.
At a glance
- Also known as 1388022
£50.48
£42.07 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
This is a wiring harness with an integrated coding resistor, manufactured by Vaillant and identified by part number 0020210204. It forms part of the electrical connection between components on the appliance, with the coding resistor signalling the correct configuration to the control. It is used across the Vaillant VU 306/5-5 and VUW 306/5-5 and 356/5-5 appliance families.
Signs this part needs replacing
- Intermittent operation or unexplained lockouts traced to the harness or its connectors
- Fault codes relating to component recognition or communication
- Visible damage to the loom, such as chafed, cracked or heat-affected insulation
- Corroded, loose or discoloured connector pins at either end of the harness
- Coding resistor reading out of tolerance or open circuit
Before you order
- Confirm the appliance model and revision (R4 or R6) against the fit list above
- Check the GC number on the appliance data badge matches the model you are ordering for
- Inspect the existing harness routing and connector type before removal to confirm a like-for-like fit
- Verify the fault is in the harness rather than the component it connects to
Compliance
| Alternative numbers | 1388022 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VU 306/5-5 A R4 | 41-044-83 | 41-044-83 | — | — |
| VAILLANT VU 306/5-5 R4 | 41-044-64 | 41-044-64 | — | — |
| VAILLANT VU 306/5-5 R6 | 41-694-25 | 41-694-25 | — | — |
| VAILLANT VU 306/5-5 R6 LPG | 41-694-26 | 41-694-26 | — | — |
| VAILLANT VUW 306/5-5 R6 | 47-044-82 | 47-044-82 | — | — |
| VAILLANT VUW 356/5-5 R4 | 47-044-53 | 47-044-53 | — | — |
| VAILLANT ecoTEC PLUS 630 VU 306/5-5 A R4 (2015) | 41-044-83 | 41-044-83 | — | — |
| VAILLANT ecoTEC PLUS 630 VU 306/5-5 R4 (2015-2015) | 41-044-64 | 41-044-64 | — | — |
| VAILLANT ecoTEC PLUS 630 VU 306/5-5 R6 (2017) | 41-694-25 | 41-694-25 | — | — |
| VAILLANT ecoTEC PLUS 630 VU 306/5-5 R6 LPG (2017) | 41-694-26 | 41-694-26 | — | — |
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 — VU 306/5-5 A R4 (GC 41-044-83), VUW 356/5-5 R4 (GC 47-044-53), ecoTEC PLUS 630 VU 306/5-5 A R4 (2015) (GC 41-044-83), ecoTEC PLUS 835 VUW 356/5-5 R4 (2015) (GC 47-044-53)
manualmanualVAILLANT appliance manual — VU 306/5-5 R4 (GC 41-044-64), ecoTEC PLUS 630 VU 306/5-5 R4 (2015-2015) (GC 41-044-64)
manualmanualVAILLANT appliance manual — VU 306/5-5 R6 (GC 41-694-25), VU 306/5-5 R6 LPG (GC 41-694-26), VUW 306/5-5 R6 (GC 47-044-82), ecoTEC PLUS 630 VU 306/5-5 R6 (2017) (GC 41-694-25), ecoTEC PLUS 630 VU 306/5-5 R6 LPG (2017) (GC 41-694-26), ecoTEC PLUS 835 VUW 306/5-5 R6 (2017) (GC 47-044-82)
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