{"product_id":"oem-goodman-85-pressure-switch-no-for-ads81155cxa-b1370150","title":"OEM Goodman -.85\" Pressure Switch NO for ADS81155CXA — B1370150","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370150 pressure switch\u003c\/strong\u003e is the genuine OEM -0.85\" WC normally-open draft-proving switch for \u003cstrong\u003eADS81155CXA\u003c\/strong\u003e gas furnaces. Sensing vacuum from the draft inducer, it closes only when adequate combustion airflow is present, allowing the ignition sequence to proceed. A failed switch, blocked vent, or weak inducer leaves the contacts open, producing a pressure-switch lockout and no heat — a fresh OEM switch with the correct -0.85\" setpoint restores safe, reliable firing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSetpoint: -0.85\" WC (water column)\u003c\/li\u003e\n\u003cli\u003eContact action: Normally Open (closes on draft)\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370150\u003c\/li\u003e\n\u003cli\u003eFits: Goodman ADS81155CXA gas furnace\u003c\/li\u003e\n\u003cli\u003eType: Single-stage diaphragm draft-proving switch\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003ePressure-switch calibration is matched to each furnace's inducer and venting. The \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e switch is set to the exact -0.85\" WC trip point on the rating plate. Generic switches at the wrong setpoint cause false lockouts or, worse, allow firing without proper draft. For this safety circuit, OEM is the correct choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — one or two screws, a sensing hose, and spade terminals. Power down, transfer the tubing and wires, and confirm the setpoint stamp matches -0.85\". If the new switch still won't close, inspect the inducer, hose, and vent for restriction.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Direct Replacement","offer_id":63032485675379,"sku":"B1370150-GEN","price":31.14,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048133869939,"sku":"B1370150","price":40.48,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-single-B1370150.jpg?v=1782944775","url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-85-pressure-switch-no-for-ads81155cxa-b1370150","provider":"National HVAC Parts","version":"1.0","type":"link"}