{"product_id":"oem-goodman-40-wc-no-pressure-switch-for-gmpv125-3-b1370126","title":"OEM Goodman -.40\" WC NO Pressure Switch for GMPV125-3 — B1370126","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370126 Pressure Switch\u003c\/strong\u003e is a factory-original safety control for the \u003cstrong\u003eGMPV125-3\u003c\/strong\u003e gas furnace. This normally open switch verifies that the inducer draft motor is producing adequate airflow before allowing the burners to ignite. If proper draft is not detected, the switch keeps the ignition sequence locked out — a critical safeguard against unsafe combustion. A faulty pressure switch commonly causes a furnace that ignites intermittently or fails to fire at all.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1370126\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Air-proving pressure switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet Point:\u003c\/strong\u003e -.40 in. WC (water column)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e GMPV125-3 furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman B1370126\u003c\/strong\u003e is calibrated to the precise -.40\" WC actuation point required by your GMPV125-3, ensuring reliable draft proving and warranty compatibility. A \u003cstrong\u003egeneric equivalent\u003c\/strong\u003e delivers the same set point and function at a lower price and is a solid choice for out-of-warranty service calls.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 3).\u003c\/strong\u003e The switch mounts with one or two screws and connects via a rubber pressure hose and spade terminals. Disconnect power before servicing and confirm the hose is free of cracks or blockage. Consult a licensed technician if you are unsure of the diagnosis.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058152096115,"sku":"GOODMAN-12172","price":26.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-40-wc-no-pressure-switch-for-gmpv125-3-b1370126","provider":"National HVAC Parts","version":"1.0","type":"link"}