Worcester Bosch
Worcester Bosch Code Plug 1125 87144311250
Worcester Bosch code plug 1125 for Greenstar 18I System boilers, used to set the appliance's gas configuration.
At a glance
- Appliance family: Greenstar 18I System
- Also known as 1020878
£12.00
£10.00 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 code plug 1125 is a configuration plug used on Greenstar 18I System boilers. It tells the control board which gas type the appliance is set up for, so the correct operating parameters are applied. This is the LPG variant.
Signs this part needs replacing
- The boiler fails to fire or locks out after a control board change
- The boiler does not recognise the correct gas type
- Combustion readings sit outside the expected range for the fuel in use
- Repeated ignition or configuration faults
Before you order
- Confirm the boiler model is a Greenstar 18I System
- Check whether the installation is LPG or NG, as the code plug variant must match
- Note the code plug number currently fitted so the correct variant is ordered
Compliance
| GC number | H75-723 |
|---|---|
| Barcode / EAN | 4047416646107 |
| Alternative numbers | 1020878 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 18I SYSTEM LPG | 41-311-87 | 41-311-87 | — | — |
| WORCESTER GREENSTAR 18I SYSTEM NG | 41-311-86 | 41-311-86 | — | — |
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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.