Worcester Bosch
Worcester Bosch Wiring Harness Hi-Limit to Manual Thermostat 87161028220
Wiring harness linking the hi-limit thermostat to the manual thermostat on Worcester Danesmoor FS 12/18 and FS 18/25 oil boilers.
At a glance
- Also known as 1020915
£8.88
£7.40 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 Worcester Bosch 87161028220 is a wiring harness that connects the hi-limit thermostat to the manual thermostat on Worcester Danesmoor FS oil boilers. It carries the control signal between the two thermostats as part of the boiler's temperature control and safety circuit.
Signs this part needs replacing
- Boiler locks out or fails to fire intermittently, with the fault tracing to the thermostat circuit
- Cracked, brittle or perished insulation along the harness
- Scorched, discoloured or corroded terminals at either plug end
- Loose or poor contact at the hi-limit or manual thermostat connectors
- Continuity fault or open circuit in the harness wiring
Before you order
- Confirm your boiler model against the fit list above — this harness is listed for Danesmoor FS 12/18 and FS 18/25 only
- Check the connector type and terminal count at both ends match the harness being removed
- Isolate the boiler from the electrical supply before inspection or fitting
- Check the hi-limit and manual thermostats themselves, as a faulty thermostat can mimic a harness fault
Compliance
| Barcode / EAN | 4010009697718 |
|---|---|
| Alternative numbers | 1020915 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER DANESMOOR FS 12/18 OOO | — | — | — | |
| WORCESTER DANESMOOR FS 18/25 OOO | — | — | — |
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.
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