{"product_id":"oem-goodman-0-37-pressure-switch-for-gms950453bxa-20197312","title":"OEM Goodman -0.37\" Pressure Switch for GMS950453BXA — 20197312","description":"\u003ch2\u003eGoodman 20197312 Pressure Switch (-0.37\" WC, Normally Open)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e20197312\u003c\/strong\u003e is a genuine OEM air-proving pressure switch calibrated at \u003cstrong\u003e-0.37 inches of water column (NO — normally open)\u003c\/strong\u003e for Goodman GMS95 gas furnaces such as the \u003cstrong\u003eGMS950453BXA\u003c\/strong\u003e. The switch senses negative pressure from the induced-draft blower and closes to prove adequate venting before the control board allows ignition. If the switch fails to close — due to a blocked flue, weak inducer, clogged drain trap, or the switch itself failing — the furnace will lock out for safety.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Air pressure \/ draft-proving switch\u003c\/li\u003e\n\u003cli\u003eSet point: -0.37\" WC (water column)\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally open (NO), closes on draft\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMS95 series, including GMS950453BXA\u003c\/li\u003e\n\u003cli\u003eOEM part number: 20197312\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 20197312\u003c\/strong\u003e is factory-calibrated to the exact -0.37\" trip point required for correct, safe operation. Because an incorrect set point causes short-cycling or unsafe firing, we recommend OEM; our \u003cstrong\u003egeneric equivalent\u003c\/strong\u003e is offered only when the pressure rating and configuration are confirmed identical.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Shut off power, disconnect the two spade terminals and the sensing hose, remove the mounting screw, and install the new switch — reconnecting the hose without kinks. About a 10-minute repair. Before assuming the switch is bad, inspect the hose, port, and drain for blockage.\u003c\/p\u003e\u003cp\u003eMatch the pressure value and NO\/NC configuration to your original before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058152685939,"sku":"GOODMAN-12194","price":32.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-37-pressure-switch-for-gms950453bxa-20197312","provider":"National HVAC Parts","version":"1.0","type":"link"}