{"product_id":"oem-goodman-0-85-wc-pressure-switch-no-for-gmpn080-4-b1370150","title":"OEM Goodman -0.85\" WC Pressure Switch NO for GMPN080-4 — B1370150","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370150 Pressure Switch\u003c\/strong\u003e is a genuine OEM air-proving safety control for \u003cstrong\u003eGMPN080-4\u003c\/strong\u003e gas furnaces. This \u003cstrong\u003enormally open (NO)\u003c\/strong\u003e switch closes at a \u003cstrong\u003e-0.85\" water column\u003c\/strong\u003e setpoint to confirm the inducer draft motor is producing adequate venting airflow before the furnace control board allows ignition. It's a critical safety device that prevents the burners from firing if the flue or inducer is blocked.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1370150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Air \/ draft pressure switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Configuration:\u003c\/strong\u003e Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSetpoint:\u003c\/strong\u003e -0.85\" WC (negative water column)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMPN080-4 furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Prove inducer draft before ignition\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure switch calibration is safety-critical. The genuine B1370150 is factory-set to the exact -0.85\" WC trip point the GMPN080-4 control sequence expects. Generic switches with approximate setpoints can cause nuisance no-heat lockouts or, worse, allow firing under poor draft conditions. The OEM part guarantees the correct pressure tap, hose fitting, and terminal orientation for a plug-and-play fit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 3).\u003c\/strong\u003e Power down the furnace, pull the rubber sensing hose off the port, disconnect the spade terminals, and unscrew the switch. Install the replacement in reverse — about 15 minutes. Verify the hose is clear of condensate and firmly seated so the switch reads draft accurately.\u003c\/p\u003e\u003cp\u003eGet your GMPN080-4 furnace safely back in service with the genuine Goodman B1370150 pressure switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058145837427,"sku":"GOODMAN-12083","price":25.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-0-85-wc-pressure-switch-no-for-gmpn080-4-b1370150","provider":"National HVAC Parts","version":"1.0","type":"link"}