{"product_id":"oem-goodman-light-blue-auxiliary-limit-switch-for-amh81155cxcb-0130f00038","title":"OEM Goodman Light Blue Auxiliary Limit Switch for AMH81155CXCB — 0130F00038","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130F00038 Auxiliary Limit Switch (Light Blue)\u003c\/strong\u003e is a genuine OEM secondary safety control for the \u003cstrong\u003eAMH81155CXCB\u003c\/strong\u003e gas furnace. The light-blue color code identifies its unique trip temperature and mounting point, separate from the primary limit. This auxiliary limit provides an additional layer of overheat protection — commonly guarding the blower compartment or a secondary section of the heat exchanger — and opens the gas circuit if temperatures climb beyond a safe range.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auxiliary \/ secondary limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor code:\u003c\/strong\u003e Light blue (application-specific trip point)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally closed, open on temperature rise\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Direct OEM replacement for AMH81155CXCB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Backup overheat protection for the furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The light-blue 0130F00038 is calibrated to a different trip point than the pink primary limit — the color codes are not interchangeable. Installing the wrong switch defeats the layered safety design and can cause nuisance trips or unsafe operation. Match the OEM color exactly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Easy to moderate. De-energize the furnace, remove the mounting screws and terminals, and install the same light-blue OEM part in the original location. Verify normal cycling and airflow after replacement.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057651827059,"sku":"GOODMAN-6054","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-light-blue-auxiliary-limit-switch-for-amh81155cxcb-0130f00038","provider":"National HVAC Parts","version":"1.0","type":"link"}