{"product_id":"oem-goodman-primary-limit-temperature-control-for-wgfm195090s4cad-20162904","title":"OEM Goodman Primary Limit Temperature Control for WGFM195090S4CAD — 20162904","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20162904 Primary Limit Temperature Control\u003c\/strong\u003e is a genuine OEM high-limit safety switch for the \u003cstrong\u003eWGFM195090S4CAD\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Mounted on the heat exchanger or supply plenum, the primary limit continuously monitors discharge air temperature and shuts off the gas valve if the furnace overheats — the most common cause being restricted airflow from a dirty filter, closed registers, or a failing blower. It is the furnace's front-line protection against heat-exchanger damage and unsafe operating temperatures.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Primary high-limit temperature control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 20162904\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Auto-monitor supply air; opens gas circuit on overheat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Plenum \/ heat-exchanger flange (factory-matched set point)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Quick-connect spade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman WGFM195090S4CAD and compatible furnace models\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine OEM 20162904\u003c\/strong\u003e arrives with the correct trip temperature, mounting geometry, and sensing-element length for this furnace — details a universal aftermarket limit cannot guarantee. Since the primary limit is a life-safety device tied directly to the gas valve, matching the OEM set point is essential; an incorrect substitute risks nuisance lockouts or, worse, failing to protect the heat exchanger.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5)\u003c\/strong\u003e — Disconnect power, note or photograph the wiring, remove the mounting screws, and transfer the spade connectors to the new control, ensuring the sensing element sits in the same position in the airstream. Allow 20–30 minutes. If the limit continues to trip after replacement, the root airflow problem must be resolved by a qualified technician before returning the furnace to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058238472563,"sku":"GOODMAN-14364","price":54.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-primary-limit-temperature-control-for-wgfm195090s4cad-20162904","provider":"National HVAC Parts","version":"1.0","type":"link"}