Ideal Air Pressure Switch 173902

Air pressure switch for the Ideal Excel HE C24 gas boiler, part number 173902.

At a glance

Also known as IDEAL173902, 1179700

Manufacturer part no.

173902

Showing prices

£0.01

£0.01 ex. VAT · VAT at 20%

In stock

Cut-off passed — dispatches next working day

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Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Ideal 173902 is an air pressure switch for Ideal gas boilers, listed for the Ideal Excel HE C24. It monitors pressure in the combustion air circuit to confirm the fan is running before the burner is allowed to fire.

Signs this part needs replacing

Boiler fails to fire and locks out with a fan or air pressure fault.
Fan runs on start-up but the burner does not ignite.
Repeated lockouts shortly after ignition or during a demand for heat.
Intermittent failure to start, with the fault clearing on reset.

Before you order

Confirm the boiler is an Ideal Excel HE C24.
Check the part number 173902 on the existing switch.
Inspect the pressure sensing tubes and their connections for blockage, kinking or damage before replacing the switch.

Can't find yours? Call 01302 279234

Make	Model / assembly	Reference	Years	Fitment
IDEAL EXCEL HE C24	47-348-35	`47-348-35`	—	—

Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.

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Barcode / EAN	5022141739026
Alternative numbers	IDEAL173902, IDEAL173902, 1179700