Keston
Keston Low Water Pressure Switch B04223000
Keston low water pressure switch, part number B04223000, for use in a range of Keston condensing gas boilers.
At a glance
- Also known as 1630425
£63.74
£53.12 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 Keston Low Water Pressure Switch is a safety device fitted to a range of Keston condensing gas boilers. It monitors the water pressure within the heating circuit and signals the boiler's control system, preventing the appliance from firing when system pressure is insufficient. The switch is supplied under Keston part number B04223000.
Signs this part needs replacing
- Boiler refuses to fire or repeatedly locks out despite adequate system pressure at the gauge
- Low pressure fault indication persists after the system has been correctly filled and vented
- Boiler runs intermittently, cutting out when demand is applied
- No continuity or an unchanged switch state when pressure rises above the operating threshold
- Visible damage, corrosion or water ingress at the switch body or its electrical connections
Before you order
- Confirm the part number on the existing switch matches B04223000
- Check the boiler model against the fitment list above
- Verify the system pressure at the filling loop and gauge before diagnosing the switch
- Isolate the electrical supply and allow the appliance to cool before any work
Compliance
| Barcode / EAN | 5060033530924 |
|---|---|
| Alternative numbers | 1630425 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| KESTON C110 CONDENSING BOILER | — | — | — | |
| KESTON C40 CONDENSING BOILER - NAT GAS | 41-930-07 | 41-930-07 | — | — |
| KESTON C40P CONDENSING BOILER - LPG | 41-930-08 | 41-930-08 | — | — |
| KESTON C55 CONDENSING BOILER - NAT GAS | 41-930-09 | 41-930-09 | — | — |
| KESTON C55P CONDENSING BOILER - LPG | 41-930-10 | 41-930-10 | — | — |
| KESTON C90 CONDENSING BOILER | — | — | — | |
| KESTON CELSIUS 25 CONDENSING BOILER | 41-930-06 | 41-930-06 | — | — |
| KESTON CELSIUS 25P CONDENSING BOILER | 41-930-14 | 41-930-14 | — | — |
| KESTON K130 HE CONDENSING BOILER | 41-930-05 | 41-930-05 | — | — |
| KESTON K170 HE CONDENSING BOILER | 41-930-04 | 41-930-04 | — | — |
Showing 10 of 17 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.
KESTON appliance manual — C110 CONDENSING BOILER, C90 CONDENSING BOILER
manualmanualKESTON appliance manual — C40 CONDENSING BOILER - NAT GAS (GC 41-930-07), C40P CONDENSING BOILER - LPG (GC 41-930-08), C55 CONDENSING BOILER - NAT GAS (GC 41-930-09), C55P CONDENSING BOILER - LPG (GC 41-930-10)
manualmanualKESTON appliance manual — CELSIUS 25 CONDENSING BOILER (GC 41-930-06), CELSIUS 25P CONDENSING BOILER (GC 41-930-14)
manualmanualKESTON appliance manual — K130 HE CONDENSING BOILER (GC 41-930-05)
manualmanualKESTON appliance manual — K170 HE CONDENSING BOILER (GC 41-930-04)
manualmanualKESTON appliance manual — K260 HE CONDENSING BOILER, K340 HE CONDENSING BOILER
manualmanualKESTON appliance manual — K50 HE CONDENSING BOILER (GC 41-930-01), K60 HE CONDENSING BOILER (GC 41-930-02), K80 HE CONDENSING BOILER (GC 41-930-03)
manualmanualKESTON appliance manual — QUDOS 28H GAS ONLY CONDENSING BOILER - NAT GAS (GC 41-930-19), QUDOS 28HP GAS ONLY CONDENSING BOILER - LPG (GC 41-930-20)
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