Baxi
Baxi Pressure Sensor 5141450
Baxi 5141450 pressure sensor for Baxi 224, 228 and 424 Combi 2 boilers, monitoring system pressure to keep the appliance running reliably.
At a glance
- Part type: Pressure sensor
£33.60
£28.00 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 Baxi 5141450 is a pressure sensor manufactured by Baxi for use in its combi boiler range. It sits within the Thermostats, Thermistors & Sensors spare part group and monitors pressure inside the appliance, feeding that reading back to the boiler control so that firing and modulation stay within safe operating limits. A working sensor is what allows the boiler to respond correctly to changes in system pressure during heating and hot water demand.
Signs this part needs replacing
- The boiler locks out or fails to fire when there is demand for heat or hot water.
- Pressure-related fault codes appear on the appliance display.
- The pressure gauge reading and the boiler's behaviour do not match, with the appliance reacting as though pressure is wrong.
- Intermittent ignition or unexplained shutdowns during normal running.
- Unstable hot water temperature or repeated cycling that traces back to a faulty pressure signal.
Before you order
- Confirm the appliance model and GC number against the compatibility list before ordering, as this sensor is used across several Baxi combi variants.
- Check the part number on the existing component or in the appliance documentation matches 5141450.
- Inspect any seals or washers at the sensor connection point and replace them if they are worn or damaged.
Mechanical
| Part type | Thermostats, Thermistors & Sensors |
|---|---|
| Length | 0.1mm |
| Width | 0.1mm |
| Depth | 0.1mm |
Compliance
| Manufacturer part number (MPN) | 5141450 |
|---|---|
| Commodity code | 9026 20 20 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 224 COMBI 2 | 47-077-48 | 47-077-48 | — | — |
| BAXI 224 LPG COMBI 2 | 47-077-50 | 47-077-50 | — | — |
| BAXI 228 COMBI 2 | 47-077-49 | 47-077-49 | — | — |
| BAXI 424 COMBI 2 | 47-077-51 | 47-077-51 | — | — |
| BAXI 424 COMBI 2 LPG | 47-077-53 | 47-077-53 | — | — |
| BAXI 424 LPG COMBI 2 | 47-077-53 | 47-077-53 | — | — |
| BAXI 430 COMBI 2 | 47-077-52 | 47-077-52 | — | — |
| BAXI 430 COMBI 2 LPG | 47-077-54 | 47-077-54 | — | — |
| BAXI 430 LPG COMBI 2 | 47-077-54 | 47-077-54 | — | — |
| BAXI QUINTA ACE S 110KW | — | — | — |
Showing 10 of 25 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.
BAXI appliance manual — 224 COMBI 2 (GC 47-077-48), 224 LPG COMBI 2 (GC 47-077-50), 228 COMBI 2 (GC 47-077-49)
manualmanualBAXI appliance manual — 424 COMBI 2 (GC 47-077-51), 424 LPG COMBI 2 (GC 47-077-53), 430 COMBI 2 (GC 47-077-52), 430 LPG COMBI 2 (GC 47-077-54)
manualmanualPOTTERTON COMMERCIAL appliance manual — SIRIUS 2 WH110, SIRIUS 2 WH50, SIRIUS 2 WH60, SIRIUS 2 WH70, SIRIUS 2 WH90
manualmanualPOTTERTON COMMERCIAL appliance manual — SIRIUS 3 WH110, SIRIUS 3 WH90
manualmanualPOTTERTON COMMERCIAL appliance manual — SIRIUS 3 WH50, SIRIUS 3 WH60, SIRIUS 3 WH70
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