{"product_id":"high-limit-switch-harness","title":"Teledyne Laars High Limit Switch Harness R0457400","description":"\u003cp\u003eThe Teledyne Laars R0457400 is the high limit switch harness, the wiring assembly that ties the hi-limit switches into the heater control circuit. It is catalogued under Jandy Laars LXi heater parts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHarness, not switch\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis listing is the wiring only. The high limit switches themselves are separate parts, so if the switch has failed you need that part as well as, or instead of, this one.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy harnesses fail\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe inside of a heater cabinet is a hot place for a connector to live. Over years of cycling, terminals discolor, insulation goes brittle and spade connectors lose their spring. The fault that follows is intermittent: the heater locks out on high limit, then runs fine when someone wiggles the wiring. Replacing the harness clears that class of fault properly instead of chasing it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBefore you start\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIsolate the heater at the breaker before opening the cabinet, and photograph the existing routing so the new harness goes back the same way.\u003c\/p\u003e","brand":"Zodiac","offers":[{"title":"Default Title","offer_id":48634260029652,"sku":"LAR-151-1212","price":64.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0801\/9568\/2516\/files\/default_f39eb0a2-14bb-44d5-b31c-f270bf8778a4.jpg?v=1788827834","url":"https:\/\/www.activepoolsupply.com\/products\/high-limit-switch-harness","provider":"Active Pool Supply","version":"1.0","type":"link"}