{"product_id":"air-pressure-switch-low-nox-after-09-04","title":"Hayward Air Pressure Switch, Low NOx, After 09\/04","description":"\u003cp\u003eThe Hayward IDXL2VPS1930 is the air pressure switch for Low NOx H-Series pool heaters built after 09\/04. It is the genuine Hayward part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAn air pressure switch is a safety interlock. It has to prove the correct air condition inside the heater before the control board will let the unit go through ignition. When the switch fails, that proof never arrives, and a heater that is otherwise in good order simply will not light.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGetting the right one\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTwo things narrow this part down. It is the Low NOx version, which is a different build from the standard H-Series, and it is for heaters made after 09\/04. Both are worth checking on the rating plate before you order, because the wrong switch either will not mount or will not hold the right setpoint.\u003c\/p\u003e\u003cp\u003eIt is listed in the Hayward parts breakdown for the Low NOx 250 and 400 models.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48626485952724,"sku":"HAY-151-1157","price":101.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_fb0d4510-c819-4c6d-95c2-0c60af20177e.jpg?v=1788710846","url":"https:\/\/www.activepoolsupply.com\/products\/air-pressure-switch-low-nox-after-09-04","provider":"Active Pool Supply","version":"1.0","type":"link"}