Baxi
Baxi 5114780 Wiring Harness
At a glance
- Part type: Cables, Leads & Wiring Harnesses
- Also known as N5589, BAXI5114780
Showing prices
£39.17
£32.64 ex. VAT · VAT at 20%
In stock
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Ordered by 4pm Mon–Fri, 10:30am Sat.
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Unused, in original packaging.
What it is
The Baxi 5114780 is a wiring lead for the domestic hot water priority sensor circuit on Baxi combi appliances. It sits within the manufacturer's Cables, Leads & Wiring Harnesses spare parts range and carries the sensor signal back to the appliance control board, so the boiler can decide when to switch the diverter into hot water mode.
Because the DHW priority circuit governs when the appliance stops heating the central heating and serves the tap outlets instead, a damaged or intermittent lead here shows up as erratic hot water behaviour rather than an obvious electrical failure. The part is listed against the Baxi Duo-Tec 24 Combi ErP.
Signs this part needs replacing
- Hot water priority does not engage, so the appliance stays on central heating when a tap is opened
- Intermittent or fluctuating hot water delivery that does not track demand
- A fault code or diagnostic reading pointing to the DHW sensor circuit
- Visible damage to the lead, such as cracked insulation, a pulled terminal or a loose plug
- Sensor resistance readings that change when the lead or its connector is moved
Before you order
- Confirm the appliance model and GC number against the compatibility list, as wiring looms vary between combi variants
- Check the connector type and routing on the existing lead before fitting the replacement
- Isolate the appliance from the electrical supply before removing or refitting any wiring
- This part is not a gas-carrying component
Mechanical
| Part type | Cables, Leads & Wiring Harnesses |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 5114780 |
|---|---|
| GC number | H28-995 |
| Commodity code | 8544 42 90 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 5039177660422, BAXI5114780, BAXI5114780, BAXI5114780, 265075904477, N5589 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI DUO-TEC 24 COMBI ErP FROM SERIAL No. PSR16 - ENDING BC | 47-075-96 | 47-075-96 | — | — |
| BAXI DUO-TEC 24 COMBI ErP SERIAL No. ENDING AC | 47-075-96 | 47-075-96 | — | — |
| BAXI DUO-TEC 24 HE | 47-075-23 | 47-075-23 | — | — |
| BAXI DUO-TEC 28 COMBI ErP FROM SERIAL No. PSS16 - ENDING BC | 47-075-97 | 47-075-97 | — | — |
| BAXI DUO-TEC 28 COMBI ErP SERIAL No. ENDING AC | 47-075-97 | 47-075-97 | — | — |
| BAXI DUO-TEC 28 HE | 47-075-25 | 47-075-25 | — | — |
| BAXI DUO-TEC 28 HE LPG | 47-075-39 | 47-075-39 | — | — |
| BAXI DUO-TEC 28 LPG COMBI ErP FROM SERIAL No. PSW16 - ENDING BC | 47-075-98 | 47-075-98 | — | — |
| BAXI DUO-TEC 28 LPG COMBI ErP SERIAL No. ENDING AC | 47-075-98 | 47-075-98 | — | — |
| BAXI DUO-TEC 33 COMBI ErP FROM SERIAL No. PSX16 - ENDING BC | 47-075-99 | 47-075-99 | — | — |
Showing 10 of 113 compatible appliances.
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
manual
BAXI appliance manual — DUO-TEC 24 COMBI ErP FROM SERIAL No. PSR16 - ENDING BC (GC 47-075-96), DUO-TEC 28 COMBI ErP FROM SERIAL No. PSS16 - ENDING BC (GC 47-075-97), DUO-TEC 28 LPG COMBI ErP FROM SERIAL No. PSW16 - ENDING BC (GC 47-075-98), DUO-TEC 33 COMBI ErP FROM SERIAL No. PSX16 - ENDING BC (GC 47-075-99), DUO-TEC 40 COMBI ErP FROM SERIAL No. PST16 - ENDING BC (GC 47-077-03)
manualmanualBAXI appliance manual — DUO-TEC 24 COMBI ErP SERIAL No. ENDING AC (GC 47-075-96), DUO-TEC 28 COMBI ErP SERIAL No. ENDING AC (GC 47-075-97), DUO-TEC 28 LPG COMBI ErP SERIAL No. ENDING AC (GC 47-075-98), DUO-TEC 33 COMBI ErP SERIAL No. ENDING AC (GC 47-075-99), DUO-TEC 40 COMBI ErP SERIAL No. ENDING AC (GC 47-077-03)
manualmanualBAXI appliance manual — DUO-TEC 24 HE (GC 47-075-23), DUO-TEC 28 HE (GC 47-075-25), DUO-TEC 33 HE (GC 47-075-24), DUO-TEC 40 HE (GC 47-075-26)
manualmanualBAXI appliance manual — DUO-TEC 28 HE LPG (GC 47-075-39)
manualmanualBAXI appliance manual — DUO-TEC COMBI 24 HE A (AFTER SERIAL No. BTG 0815) (GC 47-075-35), DUO-TEC COMBI 24 HE A (BEFORE SERIAL No. BTG 0815) (GC 47-075-35), DUO-TEC COMBI 28 HE A (AFTER SERIAL No. CAC 0929) (GC 47-075-36), DUO-TEC COMBI 28 HE A (BEFORE SERIAL No. CAC 0929) (GC 47-075-36), DUO-TEC COMBI 33 HE A (AFTER SERIAL No. BTH 1112) (GC 47-075-37), DUO-TEC COMBI 33 HE A (BEFORE SERIAL No. BTH 1112) (GC 47-075-37)
manualmanualBAXI appliance manual — DUO-TEC COMBI 40 HE A (GC 47-075-38)
manualmanualBAXI appliance manual — PLATINUM + 40 COMBI (GC 47-077-41)
manualmanualBAXI appliance manual — PLATINUM 24 COMBI ErP SERIAL No. ENDING AC (GC 47-077-04), PLATINUM 24 COMBI ErP SERIAL No. ENDING BC (GC 47-077-04), PLATINUM 24 COMBI ErP SERIAL No. ENDING CC (GC 47-077-04), PLATINUM 24 COMBI ErP SERIAL No. ENDING DC (GC 47-077-04), PLATINUM 24 COMBI ErP SERIAL No. ENDING EC (GC 47-077-04), PLATINUM 28 COMBI ErP SERIAL No. ENDING AC (GC 47-077-05), PLATINUM 28 COMBI ErP SERIAL No. ENDING BC (GC 47-077-05), PLATINUM 28 COMBI ErP SERIAL No. ENDING CC (GC 47-077-05), PLATINUM 28 COMBI ErP SERIAL No. ENDING DC (GC 47-077-05), PLATINUM 28 COMBI ErP SERIAL No. ENDING EC (GC 47-077-05), PLATINUM 33 COMBI ErP SERIAL No. ENDING AC (GC 47-077-06), PLATINUM 33 COMBI ErP SERIAL No. ENDING BC (GC 47-077-06), PLATINUM 33 COMBI ErP SERIAL No. ENDING CC (GC 47-077-06), PLATINUM 33 COMBI ErP SERIAL No. ENDING DC (GC 47-077-06), PLATINUM 33 COMBI ErP SERIAL No. ENDING EC (GC 47-077-06), PLATINUM 40 COMBI ErP SERIAL No. ENDING AC (GC 47-077-07), PLATINUM 40 COMBI ErP SERIAL No. ENDING BC (GC 47-077-07), PLATINUM 40 COMBI ErP SERIAL No. ENDING CC (GC 47-077-07), PLATINUM 40 COMBI ErP SERIAL No. ENDING EC (GC 47-077-07)
manualmanualBAXI appliance manual — PLATINUM 24HE COMBI (GC 47-075-20), PLATINUM 28HE COMBI (GC 47-075-21), PLATINUM 33HE COMBI (GC 47-075-29), PLATINUM 40HE COMBI (GC 47-075-30), PLATINUM COMBI 24HE (GC 47-075-27), PLATINUM COMBI 28HE (GC 47-075-28)
manualmanualBAXI appliance manual — PLATINUM COMBI 24 HE A - AFTER SERIAL No. BMY 0815 (GC 47-075-31), PLATINUM COMBI 28 HE A - AFTER SERIAL No. BNC 0932 (GC 47-075-32), PLATINUM COMBI 33 HE A - AFTER SERIAL No. BNE1112 (GC 47-075-33), PLATINUM COMBI 40 HE A (GC 47-075-34)
manualmanualBAXI appliance manual — PLATINUM COMBI 24 HE A - BEFORE SERIAL No. BMY 0815 (GC 47-075-31), PLATINUM COMBI 28 HE A - BEFORE SERIAL No. BNC 0932 (GC 47-075-32), PLATINUM COMBI 33 HE A - BEFORE SERIAL No. BNE1112 (GC 47-075-33)
manualmanualPOTTERTON appliance manual — GOLD COMBI 24 HE (GC 47-590-05), GOLD COMBI 28 HE (GC 47-590-06), GOLD COMBI 33 HE (GC 47-590-19)
manualmanualPOTTERTON appliance manual — GOLD COMBI ErP 24 - SERIAL No. ENDING AC (GC 47-393-43), GOLD COMBI ErP 24 - SERIAL No. ENDING BC (GC 47-393-43), GOLD COMBI ErP 28 - SERIAL No. ENDING AC (GC 47-393-44), GOLD COMBI ErP 28 - SERIAL No. ENDING BC (GC 47-393-44), GOLD COMBI ErP 28 LPG - SERIAL No. ENDING AC (GC 47-393-45), GOLD COMBI ErP 28 LPG - SERIAL No. ENDING BC (GC 47-393-45), GOLD COMBI ErP 33 - SERIAL No. ENDING AC (GC 47-393-46), GOLD COMBI ErP 33 - SERIAL No. ENDING BC (GC 47-393-46)
manualmanualPOTTERTON appliance manual — GOLD COMBI HE A 24 - AFTER SERIAL No. BMX 0815 AND AFTER GNH 0815 (GC 47-393-18), GOLD COMBI HE A 28 - AFTER SERIAL No. BNF 0932 AND AFTER GNK 0932 (GC 47-393-19), GOLD COMBI HE A 28 LPG (GC 47-393-30), GOLD COMBI HE A 33 - AFTER SERIAL No. GNL1112 (GC 47-393-20)
manualmanualPOTTERTON appliance manual — GOLD COMBI HE A 24 - BEFORE SERIAL No. BMX 0815 AND GNH 0815 (GC 47-393-18), GOLD COMBI HE A 28 - BEFORE SERIAL No. BNF 0932 AND GNK 0932 (GC 47-393-19), GOLD COMBI HE A 33 - BEFORE SERIAL No. GNL 1112 (GC 47-393-20)
manualmanualPOTTERTON appliance manual — HEATMAX COMBI 24 HE (GC 47-393-27), HEATMAX COMBI 28 HE (GC 47-393-28), HEATMAX COMBI 33 HE - AFTER SERIAL No. FMN 1112 (GC 47-393-29), HEATMAX COMBI 33 HE - BEFORE SERIAL No. FMN 1112 (GC 47-393-29)
manualmanualPOTTERTON appliance manual — PROMAX COMBI Erp 24 - SERIAL No. ENDING AC (GC 47-393-47), PROMAX COMBI Erp 24 - SERIAL No. ENDING BC & CC (GC 47-393-47), PROMAX COMBI Erp 28 - SERIAL No. ENDING AC (GC 47-393-48), PROMAX COMBI Erp 28 - SERIAL No. ENDING BC & CC (GC 47-393-48), PROMAX COMBI Erp 33 - SERIAL No. ENDING AC (GC 47-393-49), PROMAX COMBI Erp 33 - SERIAL No. ENDING BC & CC (GC 47-393-49), PROMAX PLUS A SYSTEM 24 HE (GC 47-393-47)
manualmanualPOTTERTON appliance manual — PROMAX COMBI PLUS 24 HE (GC 47-393-17), PROMAX COMBI PLUS 28 HE (GC 47-590-04), PROMAX COMBI PLUS 33 HE (GC 47-590-03)
manualmanualPOTTERTON appliance manual — PROMAX COMBI PLUS 24 HE A (GC 47-393-21), PROMAX COMBI PLUS 28 HE A (AFTER SERIAL NO. AWA 0919) (GC 47-393-22), PROMAX COMBI PLUS 28 HE A (BEFORE SERIAL NO. AWA 0919) (GC 47-393-22), PROMAX COMBI PLUS 33 HE A (AFTER SERIAL NO. ATY 1112) (GC 47-393-23), PROMAX COMBI PLUS 33 HE A (BEFORE SERIAL NO. ATY 1112) (GC 47-393-23)
manualmanualPOTTERTON appliance manual — PROMAX COMBI PLUS 24 HE LPG (GC 47-393-24)
manualmanualPOTTERTON appliance manual — TITANIUM 24 (GC 47-393-39), TITANIUM 28 (GC 47-393-40), TITANIUM 33 (GC 47-393-41), TITANIUM 40 (GC 47-393-42)
manualmanualPOTTERTON appliance manual — TITANIUM COMBI 24 ErP - SERIAL No. ENDING AC (GC 47-393-50), TITANIUM COMBI 24 ErP - SERIAL No. ENDING BC & CC (GC 47-393-50), TITANIUM COMBI 24 ErP - SERIAL No. ENDING DC (GC 47-393-50), TITANIUM COMBI 24 ErP - SERIAL No. ENDING EC (GC 47-393-50), TITANIUM COMBI 28 ErP - SERIAL No. ENDING AC (GC 47-393-51), TITANIUM COMBI 28 ErP - SERIAL No. ENDING BC & CC (GC 47-393-51), TITANIUM COMBI 28 ErP - SERIAL No. ENDING DC (GC 47-393-51), TITANIUM COMBI 28 ErP - SERIAL No. ENDING EC (GC 47-393-51), TITANIUM COMBI 33 ErP - SERIAL No. ENDING AC (GC 47-393-52), TITANIUM COMBI 33 ErP - SERIAL No. ENDING BC & CC (GC 47-393-52), TITANIUM COMBI 33 ErP - SERIAL No. ENDING DC (GC 47-393-52), TITANIUM COMBI 33 ErP - SERIAL No. ENDING EC (GC 47-393-52), TITANIUM COMBI 40 ErP - SERIAL No. ENDING AC (GC 47-393-53), TITANIUM COMBI 40 ErP - SERIAL No. ENDING BC & CC (GC 47-393-53), TITANIUM COMBI 40 ErP - SERIAL No. ENDING DC (GC 47-393-53), TITANIUM COMBI 40 ErP - SERIAL No. ENDING EC (GC 47-393-53)
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