{"product_id":"minimax-nt-std-heater-flame-sensor","title":"Pentair MiniMax NT STD Heater Flame Sensor, 471603","description":"\u003cp\u003eThe Pentair 471603 is the flame sensor for MiniMax NT STD pool and spa heaters in the 200, 250, 300 and 400 sizes. It is the genuine Pentair replacement part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat the sensor does\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eWhen the heater calls for heat, the control opens the gas and tries to light the burner. The flame sensor is what tells it whether that worked. If no flame signal comes back within the trial period, the control closes the gas and locks out. That safety logic is also why a sensor that has sooted up, corroded or cracked produces the classic symptom of a heater that fires for a few seconds and then quits.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you order\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eConfirm the model designation on the heater rating plate. This part is listed for the MiniMax NT STD, and the MiniMax range includes other versions with different parts. Once the sensor is in, it is worth checking the ground path as well, since flame sensing depends on a clean ground and a poor one mimics a failed sensor.\u003c\/p\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":48626372870356,"sku":"PUR-151-4023","price":33.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f7bcc0fb-fa29-4333-8c96-2ece8aca9af7.jpg?v=1788709438","url":"https:\/\/www.activepoolsupply.com\/products\/minimax-nt-std-heater-flame-sensor","provider":"Active Pool Supply","version":"1.0","type":"link"}