{"product_id":"pentair-473778-contactor-for-ultratemp-heat-pump","title":"Pentair Contactor for UltraTemp Heat Pump","description":"\u003cp\u003eThe Pentair 473778 is the replacement contactor for the UltraTemp heat pump. It is listed for the 3-phase models and for all single phase models built after 2014.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the contactor does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe contactor is the heavy duty switch between line power and the compressor. When the control board calls for heat, it energizes the contactor coil, the contacts close, and the compressor gets its power. Everything the heat pump does downstream of that call goes through this one component.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy they fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContacts take an arc every time they open and close. Over years of cycling they pit and burn, and eventually either stop passing current or weld shut. A heat pump that hums at the panel but never brings the compressor up is the classic symptom, so the contactor is worth inspecting before the compressor gets blamed.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48627368296660,"sku":"PUR-151-4412","price":368.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_9897229a-d110-43c3-8b2f-02d63b3b0596.jpg?v=1788722898","url":"https:\/\/www.activepoolsupply.com\/products\/pentair-473778-contactor-for-ultratemp-heat-pump","provider":"Active Pool Supply","version":"1.0","type":"link"}