Halstead Air Pressure Switch (Aps)
The air pressure switch Is a safety instrument which ensures the fan is working correctly. It ensures that, if the fan fails within the boiler, there would not be a build up of toxic fumes with no means of venting them. The PCB closely monitors the air pressure switch to make sure it is completely operational before the unit is fired up, preventing the appliance from starting without one of its key safety instruments.

HALSTEAD 840501 PRESSURE SWITCH SERVICE KIT
Part No: 1293454 MPN: 840501
£68.40 inc VAT
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HALSTEAD 500609 PRESSURE SWITCH 40DB - 60DB FROM DB400009901 TO DB75000013
Part No: 1292450 MPN: 500609
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HALSTEAD 352602 TUBE CLEAR SILICONE 300MM
Part No: 1291534 MPN: 352602
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HALSTEAD 862023 AIR PRESSURE SWITCH (HONEYWELL)
Part No: 1293934 MPN: 862023
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HALSTEAD 500617 AIR PRESSURE SWITCH - TO AC100000131
Part No: 1292466 MPN: 500617
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HALSTEAD 352603 8MM X 150MM SILICONE TUBE
Part No: 1291538 MPN: 352603
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HALSTEAD 500625 PRESSURE SWITCH HERO 40 40LPG & WICKES HEAT 40
Part No: 1292486 MPN: 500625
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HALSTEAD 500627 PRESSURE SWITCH HERO 30 50 & 75
Part No: 1292494 MPN: 500627
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Free UK DeliveryHalstead 082648869 Pressure Switch 30-60 To Lw36606A9901 - Wicks/Best 80/Quattro
Part No: 1292326 MPN: 082648869
£135.60 inc VAT
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HALSTEAD 500628 PRESSURE SWITCH HERO 90
Part No: 1292498 MPN: 500628
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HALSTEAD 500592 AIR PRESSURE SWITCH
Part No: 1292394 MPN: 500592
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HALSTEAD 500631 PRESSURE SWITCH HERO 60 60LPG & WICKES HEAT 60
Part No: 1292506 MPN: 500631
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