Worcester Bosch
Worcester Bosch Code Plug LPG 8716121821
Worcester Bosch 8716121821 LPG code plug for Greenstar 4000 System GR4700iW 21 S LPG models, setting the correct fuel parameters on the control board.
At a glance
- Part type: Code plug
- Appliance family: Greenstar 4000 System / GR4700iW
- Also known as 20167, 8922990
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£7.48
£6.23 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 8716121821 is a code plug for LPG-fuelled appliances in the Greenstar range. It connects to the boiler's control electronics and tells the board which fuel the appliance is configured to burn, so combustion settings, fan behaviour and gas valve operation match the installation. The plug must correspond to the fuel type and appliance variant, as the wrong plug leaves the boiler running to parameters that do not suit the installation.
Signs this part needs replacing
- The boiler locks out or displays a fault after a control board change
- Combustion readings fall outside the range expected for an LPG installation
- Fan speed or gas valve behaviour does not match the appliance's fuel setting
- A replacement board has been fitted without transferring the correct fuel code plug
- The plug is damaged, corroded or fails to seat properly on its connector
Before you order
- Check the appliance data plate and GC number to confirm the boiler is the LPG variant listed above
- Compare the existing code plug against 8716121821 or the alternative number 8922990 before ordering
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Code plug |
|---|---|
| Appliance family | Greenstar 4000 System / GR4700iW |
Compliance
| Manufacturer part number (MPN) | 8716121821 |
|---|---|
| GC number | 41-800-14 |
| Barcode / EAN | 8716121821 |
| Alternative numbers | 20167, 8922990 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 4000 SYSTEM GR4700iW 21 S LPG | 41-800-14 | 41-800-14 | — | — |
| WORCESTER GREENSTAR GR4700iW 21 S LPG SYSTEM | 41-800-14 | 41-800-14 | — | — |
Documents & drawings
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