
Baxi
Baxi High Voltage Wiring Harness 7812551
High voltage wiring harness, part 7812551, for Baxi 424 and 430 Combi 2 appliances.
At a glance
- Part type: high voltage wiring harness
- Appliance family: 424 and 430 Combi 2
- Also known as 1794984
£34.07
£28.39 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 Baxi 7812551 is a high voltage wiring harness used in Baxi 424 and 430 Combi 2 appliances. It carries mains-voltage connections between the boiler's electrical components, forming part of the appliance's internal wiring loom. The harness is supplied as a single assembly identified by the manufacturer's part number 7812551.
Signs this part needs replacing
- The appliance fails to power up or loses mains supply to internal components
- Intermittent faults or shutdowns that trace back to a loose or damaged harness connection
- Visible damage to the harness, such as chafed insulation, scorching or exposed conductors
- Connectors that are cracked, corroded or no longer grip their terminals
- Fault finding points to an open or broken circuit within the high voltage loom
Before you order
- Confirm the appliance model and GC number against the fit list above
- Check the part number on the existing harness or appliance wiring diagram matches 7812551
- Compare the connector layout and routing of the existing harness with the replacement before fitting
- Isolate the electrical supply and follow the manufacturer's instructions when replacing the harness
Compliance
| Alternative numbers | 1794984 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 424 COMBI 2 | 47-077-51 | 47-077-51 | — | — |
| BAXI 424 COMBI 2 LPG | 47-077-53 | 47-077-53 | — | — |
| BAXI 424 LPG COMBI 2 | 47-077-53 | 47-077-53 | — | — |
| BAXI 430 COMBI 2 | 47-077-52 | 47-077-52 | — | — |
| BAXI 430 COMBI 2 LPG | 47-077-54 | 47-077-54 | — | — |
| BAXI 430 LPG COMBI 2 | 47-077-54 | 47-077-54 | — | — |
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.
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