Baxi
Baxi Electrode Lead 5109923
Baxi 5109923 electrode lead for Baxi Combi 100 HE Plus and other HE Plus models; HT lead for the ignition electrode.
At a glance
- Part type: Electrode lead (HT lead)
- Also known as 1117712
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£28.80
£24.00 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 5109923 is an electrode lead, also known as an HT lead, designed for Baxi gas boilers. It carries the high-voltage spark from the ignition transformer to the electrode, enabling the burner to light. This lead belongs to the Cables, Leads & Wiring Harnesses spare part group and is used across several Baxi HE Plus models. It is a direct replacement for the original lead and is identified by part number 5109923. Without a functioning lead, the boiler will not produce a spark and will fail to light.
Signs this part needs replacing
- Boiler fails to ignite or locks out with an ignition fault code.
- No spark at the electrode when the boiler calls for heat.
- Intermittent ignition or a clicking sound without the burner lighting.
- Visible damage to the lead, such as cracked insulation, scorch marks or a loose connection.
- Boiler may show a fault code related to flame detection or ignition.
Before you order
- Check the GC number on your appliance data badge to confirm compatibility.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
- Confirm the part number 5109923 or alternative 1117712 matches your existing lead.
- Inspect the electrode and gasket for wear; replace if necessary.
Mechanical
| Part type | Cables, Leads & Wiring Harnesses |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 5109923 |
|---|---|
| GC number | H13-939 |
| Barcode / EAN | 5039177650515 |
| Commodity code | 8544 60 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1117712 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 100HE PLUS SYSTEM | 41-075-43 | 41-075-43 | — | — |
| BAXI BAXI 100HE PLUS | — | — | — | |
| BAXI BAXI COMBI 100 HE PLUS | — | — | — | |
| BAXI BAXI COMBI 133HE PLUS | — | — | — | |
| BAXI BAXI COMBI 80HE PLUS | — | — | — | |
| BAXI COMBI 100 HE PLUS | 47-075-15 | 47-075-15 | — | — |
| BAXI COMBI 133HE PLUS | 47-075-14 | 47-075-14 | — | — |
| BAXI COMBI 80HE PLUS | 47-075-16 | 47-075-16 | — | — |
Documents & drawings
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