Baxi
Baxi Wiring Harness Low Voltage 720775601
Low voltage wiring harness for Baxi 124 and 128 ErP Combi boilers, part 720775601. Carries low voltage control signals inside the appliance.
At a glance
- Part type: Wiring harness (low voltage)
- Also known as 1119940
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£43.20
£36.00 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 720775601 is a low voltage wiring harness used in Baxi ErP Combi appliances. It forms part of the boiler's internal wiring loom, carrying low voltage control signals between the electronic components inside the casing. It is supplied as a direct replacement harness for the 124 and 128 ErP Combi range.
Signs this part needs replacing
- The boiler fails to fire or locks out intermittently with no obvious mechanical cause
- Fault codes appear that relate to control, communication or sensor circuits
- Wiring insulation is chafed, cracked, brittle or shows signs of heat damage
- Connector terminals are loose, corroded or push back out of the plug housing
- The appliance runs erratically when the harness or its connectors are disturbed
Before you order
- Confirm your appliance model and serial number against the compatibility list before ordering.
- Check the GC number on the appliance data badge against the numbers listed for the models covered.
- Cross-reference the alternative part number 1119940 if you are working from an older parts listing.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Wiring harness |
|---|
Compliance
| Manufacturer part number (MPN) | 720775601 |
|---|---|
| GC number | H90-623 |
| Barcode / EAN | 720775601 |
| Commodity code | 8544 42 90 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1119940 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-25 | 47-077-25 | — | — |
| BAXI 124 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-25 | 47-077-25 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING AC | 47-077-26 | 47-077-26 | — | — |
| BAXI 128 ErP COMBI - SERIAL NUMBER ENDING BC | 47-077-26 | 47-077-26 | — | — |
| BAXI BAXI 124 ErP COMBI - SERIAL NUM ENDING BC | — | — | — | |
| BAXI BAXI 128 ErP COMBI - SERIAL NUM ENDING BC | — | — | — | |
| BAXI BAXI NETA-TEC COMBI 24 GA | — | — | — | |
| BAXI BAXI NETA-TEC COMBI 28 GA | — | — | — | |
| BAXI BAXI NETA-TEC COMBI 33 GA | — | — | — | |
| BAXI BAXI NETA-TEC PLUS COMBI 24 GA | — | — | — |
Showing 10 of 19 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.
BAXI appliance manual — 124 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-25), 124 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-25), 128 ErP COMBI - SERIAL NUMBER ENDING AC (GC 47-077-26), 128 ErP COMBI - SERIAL NUMBER ENDING BC (GC 47-077-26)
manualmanualBAXI appliance manual — DUO-TEC 2 COMBI 28 COMPACT (GC 47-075-72)
manualmanualBAXI appliance manual — NETA-TEC COMBI 24 GA (GC 47-075-51), NETA-TEC COMBI 28 GA (GC 47-075-52), NETA-TEC COMBI 33 GA (GC 47-075-53)
manualmanualBAXI appliance manual — NETA-TEC PLUS COMBI 24 GA (GC 47-075-64), NETA-TEC PLUS COMBI 28 GA (GC 47-075-65), NETA-TEC PLUS COMBI 33 GA (GC 47-075-66)
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