Vaillant
Vaillant Wiring Harness 0020233897
Vaillant wiring harness, part 0020233897, for VUW 436/5-7 and Ecotec Exclusive 843 VUW 436/5-7 boilers.
At a glance
- Also known as 1388302
£48.85
£40.71 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 wiring harness, part number 0020233897, is an electrical loom used on Vaillant combination boilers. It carries power and control signals between the boiler's main components and the printed circuit board. It is listed for the VUW 436/5-7 and Ecotec Exclusive 843 VUW 436/5-7 appliances.
Signs this part needs replacing
- Boiler fails to fire or cuts out intermittently
- Fault codes relating to communication or sensor signal loss
- Visible damage to the loom, such as chafed, brittle or heat-damaged insulation
- Loose, corroded or discoloured connector terminals
- Components cutting in and out when the harness is moved
Before you order
- Confirm your boiler model matches one of the fitments listed above
- Check the GC number on the appliance data badge against your model
- Inspect the existing harness and connectors for damage before ordering
- Verify part number 0020233897 against the manufacturer's parts list
Compliance
| Alternative numbers | 1388302 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VUW 436/5-7 | 47-044-67 | 47-044-67 | — | — |
| VAILLANT ecoTEC EXCLUSIVE 843 VUW 436/5-7 (2016) | 47-044-67 | 47-044-67 | — | — |
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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.