{"title":"Universal Limit Switches","description":null,"products":[{"product_id":"universal-furnace-limit-switch-160-f-high-temperature-safety-cutoff","title":"Universal Furnace Limit Switch 160°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 160°F high-limit switch for gas furnaces. The limit switch is a critical safety device that shuts off the gas burners if the heat exchanger gets too hot — preventing cracking and fire hazard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e Furnace starts then shuts off after a few minutes, short-cycling, error code for limit switch open, furnace runs but blower doesn't (limit trips from overheating).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 160°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual or auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Most residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off. Remove 2 wires. Unclip old switch from heat exchanger. Clip in new switch, reconnect wires. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010238202227,"sku":"NHVAC-LS-160","price":14.99,"currency_code":"USD","in_stock":true}]},{"product_id":"universal-furnace-limit-switch-200-f-high-temperature-safety-cutoff","title":"Universal Furnace Limit Switch 200°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 200°F high-limit switch for gas furnaces. Higher temperature rating for furnaces with tighter heat exchanger tolerances or in warmer climates where return air temps run higher.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 200°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off, swap 2 wires, clip in. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010238300531,"sku":"NHVAC-LS-200","price":14.99,"currency_code":"USD","in_stock":true}]},{"product_id":"universal-flame-rollout-switch-furnace-safety-limit","title":"Universal Flame Rollout Switch — Furnace Safety Limit","description":"\u003cp\u003eUniversal flame rollout safety switch for gas furnaces. Detects if flames are rolling out of the combustion chamber — a dangerous condition indicating a cracked heat exchanger, blocked flue, or other serious issue.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Important:\u003c\/strong\u003e A tripped rollout switch means something is seriously wrong. Don't just reset it — investigate the cause (blocked flue, cracked heat exchanger) before operating the furnace.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset rollout switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas furnace safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off, disconnect 2 wires, unclip, swap. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010238366067,"sku":"NHVAC-LS-ROLLOUT","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61kVthgb-7L._SL500.jpg?v=1782110117"},{"product_id":"universal-furnace-limit-switch-160-f-high-temperature-safety-cutoff-1","title":"Universal Furnace Limit Switch 160°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 160°F high-limit switch for gas furnaces. The limit switch is a critical safety device that shuts off the gas burners if the heat exchanger gets too hot — preventing cracking and fire hazard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e Furnace starts then shuts off after a few minutes, short-cycling, error code for limit switch open, furnace runs but blower doesn't (limit trips from overheating).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 160°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual or auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Most residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off. Remove 2 wires. Unclip old switch from heat exchanger. Clip in new switch, reconnect wires. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010378547571,"sku":"NHVAC-LS-160","price":14.99,"currency_code":"USD","in_stock":true}]},{"product_id":"universal-furnace-limit-switch-200-f-high-temperature-safety-cutoff-1","title":"Universal Furnace Limit Switch 200°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 200°F high-limit switch for gas furnaces. Higher temperature rating for furnaces with tighter heat exchanger tolerances or in warmer climates where return air temps run higher.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 200°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off, swap 2 wires, clip in. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010378875251,"sku":"NHVAC-LS-200","price":14.99,"currency_code":"USD","in_stock":true}]},{"product_id":"universal-flame-rollout-switch-furnace-safety-limit-1","title":"Universal Flame Rollout Switch — Furnace Safety Limit","description":"\u003cp\u003eUniversal flame rollout safety switch for gas furnaces. Detects if flames are rolling out of the combustion chamber — a dangerous condition indicating a cracked heat exchanger, blocked flue, or other serious issue.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Important:\u003c\/strong\u003e A tripped rollout switch means something is seriously wrong. Don't just reset it — investigate the cause (blocked flue, cracked heat exchanger) before operating the furnace.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset rollout switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas furnace safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off, disconnect 2 wires, unclip, swap. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010380874099,"sku":"NHVAC-LS-ROLLOUT","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61kVthgb-7L._SL500_3bc0d3c9-aed5-4e49-b03d-8b2523c8fdc1.jpg?v=1782110992"},{"product_id":"universal-furnace-limit-switch-160-f-high-temperature-safety-cutoff-2","title":"Universal Furnace Limit Switch 160°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 160°F high-limit switch for gas furnaces. The limit switch is a critical safety device that shuts off the gas burners if the heat exchanger gets too hot — preventing cracking and fire hazard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e Furnace starts then shuts off after a few minutes, short-cycling, error code for limit switch open, furnace runs but blower doesn't (limit trips from overheating).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 160°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual or auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Most residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off. Remove 2 wires. Unclip old switch from heat exchanger. Clip in new switch, reconnect wires. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010584691059,"sku":"NHVAC-LS-160","price":14.99,"currency_code":"USD","in_stock":true}]},{"product_id":"universal-furnace-limit-switch-200-f-high-temperature-safety-cutoff-2","title":"Universal Furnace Limit Switch 200°F — High Temperature Safety Cutoff","description":"\u003cp\u003eUniversal 200°F high-limit switch for gas furnaces. Higher temperature rating for furnaces with tighter heat exchanger tolerances or in warmer climates where return air temps run higher.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e Opens at 200°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Residential gas furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off, swap 2 wires, clip in. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010584789363,"sku":"NHVAC-LS-200","price":14.99,"currency_code":"USD","in_stock":true}]},{"product_id":"universal-flame-rollout-switch-furnace-safety-limit-2","title":"Universal Flame Rollout Switch — Furnace Safety Limit","description":"\u003cp\u003eUniversal flame rollout safety switch for gas furnaces. Detects if flames are rolling out of the combustion chamber — a dangerous condition indicating a cracked heat exchanger, blocked flue, or other serious issue.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Important:\u003c\/strong\u003e A tripped rollout switch means something is seriously wrong. Don't just reset it — investigate the cause (blocked flue, cracked heat exchanger) before operating the furnace.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset rollout switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Gas furnace safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power off, disconnect 2 wires, unclip, swap. 10 min.\u003c\/p\u003e","brand":"National HVAC Parts","offers":[{"title":"Default Title","offer_id":63010584953203,"sku":"NHVAC-LS-ROLLOUT","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/61kVthgb-7L._SL500_486f347c-4dc3-4d55-90ef-cd77ada1d8d3.jpg?v=1782112233"}],"url":"https:\/\/nationalhvacparts.com\/collections\/universal-limit-switches-2.oembed","provider":"National HVAC Parts","version":"1.0","type":"link"}