Worcester Bosch
Worcester Bosch Code Plug 25Si Compact LPG 87186909800
Worcester Bosch 87186909800 code plug for Greenstar 25Si Compact LPG and NG combi boilers, setting the appliance's fuel and model configuration.
At a glance
- Part type: Code plug
- Appliance family: Greenstar 25Si Compact combi
- Also known as 2247127
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£14.82
£12.35 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 87186909800 is a code plug used on the Greenstar 25Si Compact combi boiler range. It plugs into the appliance's control circuit and tells the board which model and fuel variant it is working with, so the boiler runs to its correct gas and output settings. It is a small but critical configuration component, particularly after a printed circuit board is replaced or a boiler is converted between fuels.
Signs this part needs replacing
- The boiler locks out or refuses to fire after a control board change.
- The board does not recognise the installed model or fuel type.
- The appliance runs on the wrong gas settings following an LPG or natural gas conversion.
- Repeated ignition faults traced back to a configuration mismatch between board and appliance.
- The plug is damaged, corroded or loose on its connector pins.
Before you order
- Check the boiler's GC number and data plate before ordering, as LPG and natural gas variants use different code plugs.
- Compare the existing plug against part number 87186909800 where the marking is still legible.
- 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 25Si Compact |
Compliance
| Manufacturer part number (MPN) | 87186909800 |
|---|---|
| GC number | J08-274 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 2247127 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 25SI COMPACT LPG | 47-406-51 | 47-406-51 | — | — |
| WORCESTER GREENSTAR 25SI COMPACT NG | 47-406-50 | 47-406-50 | — | — |
| WORCESTER WORCESTER GREENSTAR 25 SI COMPACT LPG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR 25 SI COMPACT NG | — | — | — |
Documents & drawings
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