{"product_id":"water-pressure-switch","title":"Hayward HeatPro Water Pressure Switch","description":"\u003cp\u003eThe Hayward HPX2181 is the water pressure switch for HeatPro heat pumps. It is the genuine Hayward replacement part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe heat pump will not run unless it knows water is moving through it. The pressure switch is what provides that proof. It is a safety, and it is doing its job when it stops a unit that has lost flow.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhen it is the problem\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe classic symptom is a heat pump that reports no flow while the filter pump is clearly running and the valves are open. Once you have ruled out a dirty filter, a closed valve and a clogged basket, the pressure switch itself is the next suspect. Shut off power and isolate the water before you take the old one out.\u003c\/p\u003e","brand":"Hayward","offers":[{"title":"Default Title","offer_id":48634154352852,"sku":"HAY-151-5013","price":81.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_4b70e987-3626-4e62-9350-72992860476e.jpg?v=1788825903","url":"https:\/\/www.activepoolsupply.com\/products\/water-pressure-switch","provider":"Active Pool Supply","version":"1.0","type":"link"}