Main
Main Wiring Harness Low Voltage 7683440
Low voltage wiring harness, part 7683440, for selected Main and Potterton HE gas boilers.
At a glance
- Also known as 1129246
£27.98
£23.32 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 Main 7683440 is a low voltage wiring harness assembly used on Main and Potterton HE gas boilers. It carries low voltage control signals between the boiler's electronic components. It is supplied as a complete harness assembly.
Signs this part needs replacing
- Boiler fails to fire or locks out intermittently with no other fault found
- Damaged, corroded or loose terminals on the harness plugs
- Cracked or chafed insulation exposing the conductors
- Faults that appear and clear when the harness or its connectors are moved
- Control or error faults traced to the low voltage circuit
Before you order
- Confirm your boiler model and GC number against the fit list above
- Check that part number 7683440 matches the harness currently fitted
- Compare the connector count and plug layout on your existing harness before ordering
- Isolate the boiler from the electrical supply before fitting
Compliance
| GC number | H26-836 |
|---|---|
| Barcode / EAN | 5039177832348 |
| Alternative numbers | 1129246 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| MAIN MAIN HEATING ONLY 12 HE | 41-474-02 | 41-474-02 | — | — |
| MAIN MAIN HEATING ONLY 15 HE | 41-474-03 | 41-474-03 | — | — |
| MAIN MAIN HEATING ONLY 18 HE | 41-474-04 | 41-474-04 | — | — |
| MAIN MAIN HEATING ONLY 24 HE | 41-474-05 | 41-474-05 | — | — |
| MAIN MAIN HEATING ONLY 9 HE | 41-474-01 | 41-474-01 | — | — |
| POTTERTON PERFORMA HE 12 SL | 41-592-06 | 41-592-06 | — | — |
| POTTERTON PERFORMA HE 15 SL | 41-592-07 | 41-592-07 | — | — |
| POTTERTON PERFORMA HE 18 SL | 41-592-08 | 41-592-08 | — | — |
| POTTERTON PERFORMA HE 21 SL | 41-592-09 | 41-592-09 | — | — |
| POTTERTON PERFORMA HE 24 SL | 41-592-10 | 41-592-10 | — | — |
Showing 10 of 18 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.
MAIN appliance manual — MAIN HEATING ONLY 12 HE (GC 41-474-02), MAIN HEATING ONLY 15 HE (GC 41-474-03), MAIN HEATING ONLY 18 HE (GC 41-474-04), MAIN HEATING ONLY 24 HE (GC 41-474-05), MAIN HEATING ONLY 9 HE (GC 41-474-01)
manualmanualPOTTERTON appliance manual — PERFORMA HE 12 SL (GC 41-592-06), PERFORMA HE 15 SL (GC 41-592-07), PERFORMA HE 18 SL (GC 41-592-08), PERFORMA HE 21 SL (GC 41-592-09), PERFORMA HE 24 SL (GC 41-592-10), PERFORMA HE 9 SL (GC 41-592-05)
manualmanualPOTTERTON appliance manual — SUPRIMA 30 HE (GC 41-075-35), SUPRIMA 40 HE (GC 41-075-36), SUPRIMA 50 HE (GC 41-075-37), SUPRIMA 60 HE (GC 41-075-38), SUPRIMA 70 HE (GC 41-075-39), SUPRIMA 80 HE (GC 41-075-40)
manualmanualPOTTERTON appliance manual — SUPRIMA 70 L (GC 41-590-46)
manualNo technical questions yet for this part.
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