Worcester Bosch
Worcester Bosch Harness Mains And Earth Assembly 8716121471
Mains and earth wiring harness assembly for Worcester Bosch Greenstar 4000 and Gr4700IW boilers.
At a glance
- Appliance family: Greenstar 4000 and Gr4700IW combi and system boilers
- Also known as 8922925
£18.19
£15.16 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 Harness Mains And Earth Assembly is a Worcester Bosch wiring component, supplied under part number 8716121471. It carries mains supply and earth connections within the appliance, linking the boiler's electrical intake to the control and power circuits. It is used across the Greenstar 4000 and Gr4700IW combi and system boiler range.
Signs this part needs replacing
- The boiler fails to power up or cuts out intermittently with no fault code logged
- Visible damage to the harness insulation, such as chafing, scorching or exposed conductors
- Loose, corroded or discoloured spade terminals at the mains or earth connections
- Earth continuity cannot be confirmed when tested at the appliance
- Repeated tripping of the upstream protective device when the boiler is connected
Before you order
- Confirm the boiler model and GC number against the fits list above
- Check the existing harness for the same connector arrangement and conductor count before removal
- Isolate the mains supply and verify dead before disconnecting or fitting the harness
- Inspect the appliance earth point and mains terminal block for damage that may have caused the harness fault
Compliance
| Alternative numbers | 8922925 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 25 C LPG | 47-800-31 | 47-800-31 | — | — |
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 25 C NG | 47-800-30 | 47-800-30 | — | — |
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 30 C LPG | 47-800-33 | 47-800-33 | — | — |
| WORCESTER GREENSTAR 4000 COMBI GR4700iW 30 C NG | 47-800-32 | 47-800-32 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 12 S LPG | 41-800-08 | 41-800-08 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 12 S NG | 41-800-07 | 41-800-07 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 15 S LPG | 41-800-10 | 41-800-10 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 15 S NG | 41-800-09 | 41-800-09 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 18 S LPG | 41-800-12 | 41-800-12 | — | — |
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 18 S NG | 41-800-11 | 41-800-11 | — | — |
Showing 10 of 28 compatible appliances.
Documents & drawings
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