Also referred to as a pressure differential switch, it is designed to act as a safety instrument which checks if the fan is running correctly, the air pressure switch connects to the Fan via heat resistant tubes which go directly onto the fan Venturies. Through these, it enables the boiler to detect when the fan is running to ensure that if the fan fails there would not be a build-up of toxic fumes with no way of venting them, A signal would then be sent to the printed circuit board telling the boiler to stop sending gas to the burner and preventing the boiler from turning on.

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Alpha 6.5629560 240, 280 Air Pressure Switch

Part: 6.5629560

Price: £40.00
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Alpha 1.8396 Air Pressure Switch

Part: 1.8396

Price: £45.00
images/products/Alpha_C23_Air_Pr_51937efc37b6e
Alpha 1.016884 C23 Air Pressure Switch

Part: 1.016884

Price: £59.75
images/products/Alpha__C27_Air_P_4fed94fcc88d3
Alpha 1.016507 C27 Air Pressure Switch

Part: 1.016507

Price: £59.75
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Alpha 1.012849 CB 50 Air Pressure Switch

Part: 1.012849

Price: £49.95
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Baxi 720954401 Solo 3 80Pf Air Pressure Switch

Part: 720954401

Price: £53.16
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Baxi 720011401 Solo Air Pressure Switch

Part: 720011401

Price: £56.16
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Baxi 230068 Solo 2 Air Pressure Switch

Part: 230068

Price: £41.95
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Baxi 226060 Air Pressure Switch

Part: 226060

Price: £36.75
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Baxi COM936927 Tube For Air Pressure Switch

Part: COM936927

Price: £8.67
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Baxi Pressure Switch 5111414

Part: 5111414

Price: £139.21
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Baxi 5137529 Combi Air Pressure Switch

Part: 5137529

Price: £32.98
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Baxi 5111609 Solo 3 60PF Air Pressure Switch

Part: 5111609

Price: £28.46
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Baxi 248466 Combi Instant 105He Air Pressure Switch

Part: 248466

Price: £14.23
images/products/Baxi_Air_Pressur_522d9a57191c6
Baxi 5137532 Combi Instant 80He Air Pressure Switch

Part: 5137532

Price: £32.93
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Baxi 5137530 Combi 105He, Instant He Air Pressure Switch

Part: 5137530

Price: £32.97
642228
Baxi Air Pressure Switch 642228

Part: 642228

Price: £76.30
images/products/Potterton_Pressu_4ef06037ef875
Potterton Ultra Air Pressure Switch 642223

Part: 642223

Price: £56.57
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Potterton Profile, Prima Air Pressure Switch 642220

Part: 642220

Price: £57.06
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Potterton 642216 Air Pressure Switch

Part: 642216

Price: £72.68
images/products/Potterton_Air_Pr_524c404eae1a9
Potterton Profile Air Pressure Switch 64220802

Part: 64220802

Price: £70.82
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Potterton 5105884 Profile Air Pressure Switch

Part: 5105884

Price: £63.59
images/products/Potterton_Tube_F_4f1ac51c64130
Potterton Tube For Air Pressure Switch COM936927

Part: COM936927

Price: £8.67
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Potterton Pressure Switch 5139876

Part: 5139876

Price: £44.02
248466
Potterton Pressure Switch 248466

Part: 248466

Price: £14.23
226060
Potterton Pressure Switch 226060

Part: 226060

Price: £36.75
images/products/Potterton___Pres_514aef419a7ab
Potterton Pressure Switch Solo 80 Pf 720954401

Part: 720954401

Price: £53.16
720011401
Potterton Pressure Switch 720011401

Part: 720011401

Price: £56.16
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Potterton Pressure Switch 5111414

Part: 5111414

Price: £139.21
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Potterton Pressure Switch 230068

Part: 230068

Price: £41.95
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Potterton 642482 Kingfisher Air Pressure Switch

Part: 642482

Price: £53.03
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Potterton Kingfisher Air Pressure Switch 642481

Part: 642481

Price: £78.66
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Potterton Suprima Air Pressure Switch 642236

Part: 642236

Price: £55.74
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Potterton 642228 Suprima Air Pressure Switch

Part: 642228

Price: £76.30
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Potterton Performa 24 Eco He Air Pressure Switch 5137532

Part: 5137532

Price: £32.93
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Potterton Performa 30He Air Pressure Switch 5137530

Part: 5137530

Price: £32.97
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Potterton Suprima 70He Air Pressure Switch 5112198

Part: 5112198

Price: £24.84
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Potterton Air Pressure Switch 5112197

Part: 5112197

Price: £24.84
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Potterton Suprima 40He Air Pressure Switch 5112196

Part: 5112196

Price: £24.84
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Potterton Suprima 30He Air Pressure Switch 5112195

Part: 5112195

Price: £24.84
images/products/Potterton_Pressu_4efdbc49b52eb
Potterton Pressure Switch Kit 5111610

Part: 5111610

Price: £27.68
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Potterton Pressure Switch Kit 5111609

Part: 5111609

Price: £28.46
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Potterton 5111408 Control Unit

Part: 5111408

Price: £461.42
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Potterton Air Pressure Switch 5110393

Part: 5110393

Price: £24.84
images/products/Potterton__Air_P_4fbcebd27e07b
Potterton 5110350 Suprima 50He Air Pressure Switch

Part: 5110350

Price: £24.84
images/products/Potterton_Air_Pr_4f11834ea586d
Potterton Suprima 80L Air Pressure Switch 5105867

Part: 5105867

Price: £63.36
images/products/Potterton_Air_Pr_4ebd4f7507f3e
Potterton Kingfisher Air Pressure Switch 5105796

Part: 5105796

Price: £43.08
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Potterton Suprima 50L Air Pressure Switch 5105576

Part: 5105576

Price: £41.34
images/products/Potterton__Air_P_4fbdf6ac68a78
Potterton 5105575 Suprima 40L Air Pressure Switch

Part: 5105575

Price: £63.36
images/products/Potterton__Air_P_4f33e1e595275
Potterton Suprima L Air Pressure Switch 5105574

Part: 5105574

Price: £43.09
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