{"product_id":"oem-goodman-m4-primary-limit-switch-for-amvc961005cnba-20162906","title":"OEM Goodman M4 Primary Limit Switch for AMVC961005CNBA — 20162906","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162906 M4 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control for the \u003cstrong\u003eAMVC961005CNBA\u003c\/strong\u003e modulating variable-speed furnace. Mounted on the heat-exchanger deck, this primary limit monitors supply-air temperature and de-energizes the gas valve if the furnace overheats — typically from a dirty filter, blocked ducts, or a failing blower. As an auto-reset device, it re-closes once temperatures return to normal, allowing the furnace to resume.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20162906\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e M4-series primary high-limit switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Over-temperature gas-circuit cutout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic (temperature self-resetting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMVC961005CNBA and related furnace models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The OEM 20162906 is factory-calibrated to the trip and reset temperatures matched to this furnace's heat exchanger and bracket geometry. Generic substitutes with different set points or mounting can nuisance-trip or overheat the exchanger. For heat-related safety controls, fit OEM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty:\u003c\/strong\u003e \u003cem\u003eModerate\u003c\/em\u003e — shut off power, disconnect the spade terminals, remove the two mounting screws, and install the new switch in the same orientation on the heat-exchanger panel. Confirm the underlying airflow problem is resolved. Professional installation recommended.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057998086515,"sku":"GOODMAN-9093","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-m4-primary-limit-switch-for-amvc961005cnba-20162906","provider":"National HVAC Parts","version":"1.0","type":"link"}