{"product_id":"oem-goodman-0-35-wc-no-pressure-switch-for-gupi120-5-b1370133","title":"OEM Goodman -0.35\" WC NO Pressure Switch for GUPI120-5 — B1370133","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370133\u003c\/strong\u003e is a genuine OEM air-proving pressure switch rated at \u003cstrong\u003e-0.35\" WC, normally open (NO)\u003c\/strong\u003e, for the \u003cstrong\u003eGoodman GUPI120-5\u003c\/strong\u003e furnace. It confirms the inducer\/draft motor has established proper negative pressure before the control board allows ignition. If the switch never closes, the furnace won't light; if it fails closed, it defeats a key safety interlock. Symptoms of a bad switch include no ignition, short cycling, or a furnace that runs the inducer but never fires.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet point:\u003c\/strong\u003e -0.35 in. WC (water column)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Normally open, closes on negative pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorts:\u003c\/strong\u003e Single-port draft sensing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM part number:\u003c\/strong\u003e B1370133\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits model:\u003c\/strong\u003e GUPI120-5 furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B1370133\u003c\/strong\u003e is calibrated to Goodman's exact -0.35\" WC set point, which is critical — an incorrectly rated switch can cause nuisance lockouts or bypass a safety. A \u003cstrong\u003egeneric equivalent\u003c\/strong\u003e can save money if the pressure rating, port count, and terminal style match precisely; otherwise choose OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Kill power, note and transfer the rubber sensing hose, move the two electrical terminals, and remove the mounting screws. About 20 minutes. Verify the new switch actuates by checking inducer draft at startup.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058196234611,"sku":"GOODMAN-B1370133","price":25.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-35-wc-no-pressure-switch-for-gupi120-5-b1370133","provider":"National HVAC Parts","version":"1.0","type":"link"}