{"product_id":"oem-goodman-low-pressure-switch-for-aph1549m41ad-heat-pump-0130m00075","title":"OEM Goodman Low Pressure Switch for APH1549M41AD Heat Pump — 0130M00075","description":"\u003ch2\u003eGoodman 0130M00075 Low Pressure Switch\u003c\/h2\u003e\u003cp\u003eThis genuine OEM low pressure (loss-of-charge) switch guards your Goodman\/Amana \u003cstrong\u003eAPH1549M41AD\u003c\/strong\u003e heat pump against running with insufficient refrigerant. When suction pressure drops below the safe threshold — due to a leak, undercharge, or restricted metering device — the switch opens the control circuit and shuts down the compressor before it can overheat or slug. Once normal pressure returns, the auto-reset contacts close and the system restarts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRefrigerant: R-410A compatible\u003c\/li\u003e\n\u003cli\u003eCut-out (open): ~22 PSI\u003c\/li\u003e\n\u003cli\u003eCut-in (close): ~45 PSI (auto-reset)\u003c\/li\u003e\n\u003cli\u003eConnection: 1\/4 in. SAE flare with Schrader depressor\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4 in. spade quick-connect\u003c\/li\u003e\n\u003cli\u003eFits: Goodman \u0026amp; Amana APH1549M41AD and compatible heat pump condensers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 0130M00075\u003c\/strong\u003e is factory-calibrated to Goodman's low-side trip points and built for year-round outdoor exposure. Generic loss-of-charge switches may trip at the wrong pressures — nuisance-tripping in cold weather or failing to protect during a slow leak. For reliable compressor protection, stick with the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Power must be off and, depending on the port type, refrigerant may need to be recovered. A qualified EPA-certified tech usually completes the replacement in about 20–30 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058291196275,"sku":"GOODMAN-15686","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-low-pressure-switch-for-aph1549m41ad-heat-pump-0130m00075","provider":"National HVAC Parts","version":"1.0","type":"link"}