{"product_id":"oem-goodman-primary-limit-temp-control-for-amvm970603bnaa-20162904","title":"OEM Goodman Primary Limit Temp Control for AMVM970603BNAA — 20162904","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety device for \u003cstrong\u003eAMVM970603BNAA\u003c\/strong\u003e modulating variable-speed gas furnaces. Mounted on the heat-exchanger\/blower bulkhead, the primary limit continuously monitors supply-air temperature and cuts the gas valve if the furnace overheats — the classic symptom of restricted airflow from a dirty filter, blocked returns, or a failing blower. Unlike a rollout switch, the primary limit is an \u003cstrong\u003eauto-reset\u003c\/strong\u003e control that re-closes once temperatures normalize, but repeated tripping (short-cycling on limit) signals an airflow problem that must be addressed.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 20162904\u003c\/li\u003e\n\u003cli\u003eComponent Type: Primary high-limit temperature control\u003c\/li\u003e\n\u003cli\u003eAction: Normally closed, opens on over-temperature (auto-reset)\u003c\/li\u003e\n\u003cli\u003eFunction: Supply-air overheat protection\u003c\/li\u003e\n\u003cli\u003eCompatible Model: AMVM970603BNAA (Amana \/ Goodman furnace)\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement — model-specific trip point\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe trip temperature and disc diameter of a primary limit are matched to a specific furnace. This \u003cstrong\u003egenuine OEM control\u003c\/strong\u003e guarantees the correct set point and mounting footprint, whereas a mismatched generic can cause chronic nuisance shutdowns or mask a real overheating condition.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate.\u003c\/strong\u003e Remove the blower-compartment panel, disconnect two leads, and replace the two mounting screws — 15–25 minutes. Cut power and gas first, and verify airflow is unobstructed before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058003493235,"sku":"GOODMAN-9242","price":35.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temp-control-for-amvm970603bnaa-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}