Worcester Bosch
Worcester Bosch Pressure Relief Valve Kit 4 Bar >100 kW 8738903407
Pressure relief valve kit rated at 4 bar for Worcester Bosch Greenstar Condens 7000 Series appliances above 100 kW.
At a glance
- Also known as 2249487
£224.50
£187.08 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 8738903407 is a pressure relief valve kit rated at 4 bar for appliances above 100 kW. It is fitted to Worcester Bosch Greenstar Condens 7000 Series boilers and opens to discharge water when system pressure exceeds the set limit, protecting the appliance and heating circuit from over-pressurisation.
Signs this part needs replacing
- Water continually dripping or discharging from the pressure relief valve outlet
- System pressure repeatedly dropping or failing to hold at the correct level
- Visible scale, corrosion or debris around the valve seat
- Boiler locking out or showing a low-pressure fault
- Valve failing to reseat after operating
Before you order
- Confirm your appliance model matches one of the fitments listed above
- Check the existing valve is rated at 4 bar and the appliance output is above 100 kW
- Verify the part number 8738903407 against the manufacturer's parts list for your boiler
Compliance
| Alternative numbers | 2249487 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR CONDENS 7000 SERIES GC7000WP 125 23 | — | — | — | |
| WORCESTER GREENSTAR CONDENS 7000 SERIES GC7000WP 145 23 | — | — | — | |
| WORCESTER GREENSTAR CONDENS GC7000WP 125 23 | — | — | — | |
| WORCESTER GREENSTAR CONDENS GC7000WP 145 23 | — | — | — |
Documents & drawings
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