{"product_id":"oem-goodman-auto-reset-limit-switch-for-gmv81155cxba-20269903","title":"OEM Goodman Auto-Reset Limit Switch for GMV81155CXBA — 20269903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20269903 Auxiliary Limit Auto-Reset Switch\u003c\/strong\u003e is a genuine OEM safety component for the \u003cstrong\u003eGMV81155CXBA\u003c\/strong\u003e and related GMV8-series gas furnaces. This auxiliary high-limit switch monitors temperature at a secondary location in the furnace and opens the circuit if it detects overheating — protecting the heat exchanger and blower assembly from thermal damage.\u003c\/p\u003e\u003cp\u003eBecause it is an \u003cstrong\u003eauto-reset\u003c\/strong\u003e device, the switch closes again automatically once temperatures return to a safe range, so nuisance shutdowns from a restricted filter or temporary airflow drop don't require a manual reset. A failed or drifted limit switch is a common cause of short-cycling, no-heat calls, or a furnace that runs the blower but won't fire.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20269903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auxiliary high-limit, auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Over-temperature safety cutout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman \/ Amana GMV8 series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e 80% AFUE two-stage gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic (snap-disc bimetal)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman switch\u003c\/strong\u003e is factory-calibrated to the exact trip and reset temperatures specified for the GMV8 heat exchanger. Because this is a safety device, we strongly recommend OEM over generic switches — an incorrect trip temperature can either allow dangerous overheating or cause repeated nuisance lockouts.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate.\u003c\/strong\u003e The switch mounts with two screws and uses push-on spade terminals. Shut off power at the breaker before servicing. Match the mounting location and orientation of the original. A basic HVAC service task for most technicians and experienced DIYers.\u003c\/p\u003e\u003cp\u003eQuestions on compatibility? Email \u003ca href=\"mailto:info@nationalhvacparts.com\"\u003einfo@nationalhvacparts.com\u003c\/a\u003e with your full model and serial number.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058171068787,"sku":"GOODMAN-12676","price":18.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-auto-reset-limit-switch-for-gmv81155cxba-20269903","provider":"National HVAC Parts","version":"1.0","type":"link"}