
Saunier Duval
Saunier Duval Air Pressure Switch 0020248905
Air pressure switch for Saunier Duval Semia Condens F24E and F30E boilers, part 0020248905.
At a glance
- Appliance family: Semia Condens
- Also known as 1417457
£51.16
£42.63 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 air pressure switch is a Saunier Duval component used on Semia Condens appliances. It monitors the pressure produced by the fan and confirms that air is moving through the combustion circuit before the boiler is allowed to fire. If the switch does not prove airflow, the boiler will not run.
Signs this part needs replacing
- Boiler fails to fire and locks out shortly after the fan starts
- Fan runs but the boiler will not progress to ignition
- Intermittent lockouts that clear on reset and return
- Fault code relating to air pressure or fan proving on the appliance display
- Visible damage, contamination or blocked sensing ports on the switch
Before you order
- Confirm the appliance model is a Saunier Duval Semia Condens F24E or F30E
- Check the part number on the existing switch against 0020248905
- Inspect the sensing tubes and fan for blockages or leaks before replacing the switch
- Verify the fault is not caused by a failed fan or blocked flue
Compliance
| Alternative numbers | 1417457 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SAUNIER DUVAL SEMIA CONDENS F24E | 47-920-51 | 47-920-51 | — | — |
| SAUNIER DUVAL SEMIA CONDENS F30E | 47-920-52 | 47-920-52 | — | — |
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.
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