Worcester Bosch
Worcester Bosch Pressure Gauge 87172080790
Worcester Bosch 87172080790 pressure gauge (manometer) for Greenstar combi and condensing boilers, giving a visual reading of central heating system pressure.
At a glance
- Part type: Gauge
- Also known as 1020025
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£68.62
£57.18 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 87172080790 is a pressure gauge, also listed as a manometer, used across the manufacturer's Greenstar combi and condensing boiler range. It provides a visual reading of the water pressure held within the central heating system, so the engineer or homeowner can see whether the system is maintaining its fill pressure. A reading that keeps falling usually indicates a leak somewhere on the heating circuit.
Signs this part needs replacing
- The needle rests at zero, or well below normal system pressure, with the system cold and filled.
- The reading does not change when the system is topped up or when pressure rises during heating.
- The gauge face is misted, cracked, or the needle is bent or stuck against the stop pin.
- System pressure drops repeatedly and the gauge is the only visible indication of the loss.
- Water weeps from around the gauge body or its connection to the appliance.
Before you order
- Check the GC number and the appliance serial plate to confirm the gauge matches your model.
- Cross-check the alternative number 1020025 against the part currently fitted to the appliance.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Gauges |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 87172080790 |
|---|---|
| GC number | E74-910 |
| Barcode / EAN | 4010009617662 |
| Commodity code | 9026 20 20 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1020025 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER BRITISH GAS GREENSTAR CC1-FSN-GB NG 29KW COMBI | 47-108-05 | 47-108-05 | — | — |
| WORCESTER BRITISH GAS GREENSTAR GREENSTAR HE PLUS-FSN- GB28KW | 47-311-56 | 47-311-56 | — | — |
| WORCESTER BRITISH GAS GREENSTAR GREENSTAR HE-FSN-GB NG 27KW | 47-311-55 | 47-311-55 | — | — |
| WORCESTER BRITISH GAS GREENSTAR ICC2-FSN-GB NAT 30KW COND COM | 41-108-09 | 41-108-09 | — | — |
| WORCESTER BRITISH GAS GREENSTAR ICC2-FSN-GB NAT 37KW COND COM | 41-108-10 | 41-108-10 | — | — |
| WORCESTER BRITISH GAS GREENSTAR RD428 | 41-108-07 | 41-108-07 | — | — |
| WORCESTER BRITISH GAS GREENSTAR RD537I | 47-108-11 | 47-108-11 | — | — |
| WORCESTER BRITISH GAS RD430I | 41-108-06 | 41-108-06 | — | — |
| WORCESTER BRITISH GAS RD532 | 47-108-13 | 47-108-13 | — | — |
| WORCESTER BRITISH GAS RD532I | 47-108-10 | 47-108-10 | — | — |
Showing 10 of 57 compatible appliances.
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.
WORCESTER appliance manual — BRITISH GAS GREENSTAR ICC2-FSN-GB NAT 30KW COND COM (GC 41-108-09), BRITISH GAS GREENSTAR ICC2-FSN-GB NAT 37KW COND COM (GC 41-108-10)
manualmanualWORCESTER appliance manual — CS1 RSF 28KW NG (GC 41-108-02)
manualmanualWORCESTER appliance manual — GREENSTAR 25 HE (GC 47-311-73), GREENSTAR 30 HE COMBI (GC 47-311-74)
manualmanualWORCESTER appliance manual — GREENSTAR 28 HE SYSTEM (GC 41-311-58)
manualmanualWORCESTER appliance manual — GREENSTAR 30 HE PLUS COMBI (GC 47-311-75), GREENSTAR 35 HE PLUS COMBI (GC 47-311-76), GREENSTAR HE PLUS-FSN-GB35KW (GC 47-311-57)
manualmanualWORCESTER appliance manual — GREENSTAR R25HE COMBI (GC 47-311-77), GREENSTAR R30HE COMBI (GC 47-311-78)
manualmanualWORCESTER appliance manual — GREENSTAR R28HE SYSTEM (GC 41-311-62)
manualmanualWORCESTER appliance manual — GREENSTAR R29HE CONVENTIONAL (GC 41-311-60), GREENSTAR R40HE CONVENTIONAL (GC 41-311-61)
manualmanualWORCESTER appliance manual — GREENSTAR R30HE PLUS COMBI (GC 47-311-79), GREENSTAR R35HE PLUS COMBI (GC 47-311-80), GREENSTAR R40HE PLUS COMBI (GC 47-311-81)
manualmanualWORCESTER appliance manual — ICS1 RSF 28KW NG (GC 41-108-04)
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