{"product_id":"oem-goodman-primary-limit-switch-for-aces960403bnaa-20162902","title":"OEM Goodman Primary Limit Switch for ACES960403BNAA — 20162901","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20162901 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control for \u003cstrong\u003eACES960403BNAA\u003c\/strong\u003e gas furnaces and compatible Goodman\/Amana models. Mounted on the heat-exchanger bulkhead, this normally-closed thermal switch monitors supply-air temperature and opens the gas valve circuit if the furnace overheats — typically from a dirty filter, blocked ductwork, or a failed blower. A faulty primary limit causes short-cycling, no-heat lockouts, or a furnace that fires but won't stay running.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20162901\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit switch (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAction:\u003c\/strong\u003e Normally closed, opens on overheat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Overheat safety \/ gas valve interlock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman \/ Amana OEM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e ACES960403BNAA and compatible furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003eOEM limit switch\u003c\/strong\u003e is calibrated to the furnace's exact trip and reset temperatures and uses the correct mounting bracket and insertion depth. Generic limits with the wrong temperature rating or probe length can nuisance-trip or, worse, fail to protect the heat exchanger. OEM keeps the safety chain factory-accurate and preserves warranty.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy.\u003c\/strong\u003e Cut power at the furnace, unplug the two spade terminals, remove two mounting screws, and install the replacement in the same orientation. About 15–20 minutes for most DIYers.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057422287219,"sku":"GOODMAN-2247","price":32.34,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-switch-for-aces960403bnaa-20162902","provider":"National HVAC Parts","version":"1.0","type":"link"}