Alpha
Alpha Protec 70-90-115 Thermal Fuse Wiring 1.031783
Thermal fuse wiring for Alpha ProTec 70, 90 and 115 commercial boilers, supplied under part number 1.031783.
At a glance
- Also known as THERMAL-FUSE-WIRING-PROTEC-70-90-115, 1259716
£15.24
£12.70 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 Alpha Protec 70-90-115 thermal fuse wiring is a wiring harness for the thermal fuse circuit on Alpha ProTec commercial boilers. It links the thermal fuse to the appliance control circuit so the boiler shuts down safely if the flue or heat exchanger overheats. It is supplied under Alpha part number 1.031783 and suits ProTec 70, 90 and 115 models, including ProTec Plus variants.
Signs this part needs replacing
- Boiler fails to fire or produces no heat, with the thermal fuse circuit open.
- Repeated lockouts or safety trips relating to overheat or flue protection.
- Continuity test across the thermal fuse wiring shows an open circuit.
- Visible scorching, brittle insulation or damage along the wiring.
- Boiler runs briefly, then shuts down on a safety trip.
Before you order
- Confirm the appliance model and gas type against the fit list above.
- Note the routing of the existing thermal fuse wiring before removal.
- Check that the replacement wiring matches the connector type and length of the original.
- Isolate the appliance from the electrical and gas supply before carrying out any work.
Compliance
| Alternative numbers | THERMAL-FUSE-WIRING-PROTEC-70-90-115, 1031783, 1259716 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA COMMERCIAL PRO TEC 115 | — | — | — | |
| ALPHA COMMERCIAL PRO TEC 115 (LPG) | — | — | — | |
| ALPHA COMMERCIAL PRO TEC 70 | — | — | — | |
| ALPHA COMMERCIAL PRO TEC 70 (LPG) | — | — | — | |
| ALPHA COMMERCIAL PRO TEC 90 | — | — | — | |
| ALPHA COMMERCIAL PRO TEC 90 (LPG) | — | — | — | |
| ALPHA COMMERCIAL PRO TEC PLUS 115 | 41-532-36 | 41-532-36 | — | — |
| ALPHA COMMERCIAL PRO TEC PLUS 115 (LPG) | — | — | — | |
| ALPHA COMMERCIAL PRO TEC PLUS 70 | 41-532-32 | 41-532-32 | — | — |
| ALPHA COMMERCIAL PRO TEC PLUS 70 (LPG) | — | — | — |
Showing 10 of 12 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.
ALPHA COMMERCIAL appliance manual — PRO TEC 115, PRO TEC 115 (LPG), PRO TEC 70, PRO TEC 70 (LPG), PRO TEC 90, PRO TEC 90 (LPG)
manualmanualALPHA COMMERCIAL appliance manual — PRO TEC PLUS 115 (GC 41-532-36), PRO TEC PLUS 115 (LPG), PRO TEC PLUS 70 (GC 41-532-32), PRO TEC PLUS 70 (LPG), PRO TEC PLUS 90 (GC 41-532-34), PRO TEC PLUS 90 (LPG)
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