Worcester Bosch
Worcester Bosch Gas Valve 87470033810
At a glance
- Part type: Gas Valve
- Also known as 1020303
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£289.80
£241.50 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 87470033810 is a gas valve designed for use in Worcester Bosch combi boilers. It controls the flow of gas to the burner, opening and closing in response to demand from the boiler's control system. This component is part of the gas train and is essential for safe and efficient combustion. A faulty gas valve can prevent the boiler from firing or cause unreliable operation, often leading to lockouts or intermittent heating.
Signs this part needs replacing
- Boiler fails to ignite or repeatedly locks out
- Intermittent or no heating and hot water
- Flame cuts out shortly after ignition
- Error codes relating to flame detection or gas supply
- Audible clicking from the valve but no gas flow
- The boiler may run for short periods then shut down
Before you order
- Check the appliance GC number and model to confirm compatibility.
- No previous part numbers are listed for this item.
- Inspect the existing gasket or seal and replace if worn.
- Ensure the gas supply is isolated before commencing work.
- Confirm the part number matches the existing valve before removal.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Gas Valve |
|---|
Compliance
| Manufacturer part number (MPN) | 87470033810 |
|---|---|
| GC number | E27-592 |
| Barcode / EAN | 4010009739210 |
| GPC classification | Valves/Fittings - Water and Gas |
| Alternative numbers | WB87470033810, 1020303 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER 25 SI RSF COMBI LPG | 47-311-50 | 47-311-50 | — | — |
| WORCESTER 25 SI RSF COMBI NG | 47-311-49 | 47-311-49 | — | — |
| WORCESTER 28 SI RSF LPG | 47-311-52 | 47-311-52 | — | — |
| WORCESTER 28 SI RSF NG | 47-311-51 | 47-311-51 | — | — |
| WORCESTER BRITISH GAS C1-FSN-GB NG COMBI | 47-311-53 | 47-311-53 | — | — |
| WORCESTER WORCESTER 25SI RSF LPG | — | — | — | |
| WORCESTER WORCESTER 25SI RSF NATURAL GAS | — | — | — | |
| WORCESTER WORCESTER 28SI RSF LPG | — | — | — | |
| WORCESTER WORCESTER 28SI RSF NATURAL GAS | — | — | — | |
| WORCESTER WORCESTER C1 RSF | — | — | — |
Documents & drawings
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