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Air Pressure Switch

What is the APS?

A boiler air pressure switch, also referred to as the pressure safeguard acts as a safety mechanism that checks the fan is in full working order. It ensures that, if the fan fails within the boiler, there would not be a build up of toxic gasses with no means of venting them. The PCB (Printed circuit board) closely monitors the air pressure switch to make sure it is fully operational before the boiler is fired up, preventing the appliance from starting without one of its key safety devices. Popular boiler air pressure switches fitted are manufactured by Honeywell, Yamatake, Dungs and Huba.

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323 results
1115886 Baxi 720011401 Kit Pressure Switch 30/40/50 246053 E26186 720011401 243592, H72197
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£52.42(inc VAT)
1119348 Baxi 5137529 Se Fan Pressure Switch 5137529 247380 5137531 247389 393947
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£31.97(inc VAT)
1014233 Worcester 87161044610 Air Pressure Switch Huba 87161044610, E80454
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£25.96(inc VAT)
1531500 Vokera 10020889 Pressure Switch 10020889 H40403
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£31.32(inc VAT)
1379720 Vaillant 0020018138 Fan Proving Switch 20018138 E49977
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£40.62(inc VAT)
1292394 Halstead 500592 Air Pressure Switch E23689 H06583
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£65.62(inc VAT)
1018179 Worcester 87161424140 Air Pressure Switch 87161424140, E01596
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£21.94(inc VAT)
1333560 Glowworm S202201 Air Pressure Switch S202201
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£50.56(inc VAT)
1210625 Ferroli 39805630 Air Pressure Switch E23840
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£36.86(inc VAT)
1210552 Ferroli 39800140 Air Pressure Switch 381691
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£35.65(inc VAT)
1124317 Potterton 64220802 Pressure Switch Pro 30 80E 64220802, 640208, 64220801 8642214 33798
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£70.49(inc VAT)
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