{"product_id":"oem-goodman-low-pressure-switch-for-aph1543m41ba-0130m00075","title":"OEM Goodman Low Pressure Switch for APH1543M41BA — 0130M00075","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130M00075 Low Pressure Switch\u003c\/strong\u003e is a genuine OEM safety control for the \u003cstrong\u003eAPH1543M41BA\u003c\/strong\u003e heat pump. It monitors suction-side refrigerant pressure and opens the compressor circuit if pressure drops too low — the classic sign of a refrigerant leak, loss of charge, or restricted flow. By cutting the compressor before it runs low on refrigerant, this switch prevents overheating, oil starvation, and costly compressor failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFunction: Low-side (loss-of-charge) pressure switch\u003c\/li\u003e\n\u003cli\u003eAction: Opens on low suction pressure, auto-resets when restored\u003c\/li\u003e\n\u003cli\u003eApplication: Goodman\/Amana heat pump refrigerant circuit\u003c\/li\u003e\n\u003cli\u003eCompatibility: APH1543M41BA (confirm setpoint against your unit)\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eA \u003cstrong\u003egenuine Goodman OEM low pressure switch\u003c\/strong\u003e is factory-calibrated to the correct cut-out pressure for this system. Aftermarket substitutes with the wrong setpoint can either nuisance-trip in cold weather or fail to shut down a low-charge system, defeating the protection entirely. For a compressor safety, OEM calibration matters.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Moderate.\u003c\/strong\u003e The switch ties into the low-side refrigerant circuit. Many units use a Schrader fitting so charge recovery isn't needed, but always verify the port type, cut power, and follow the wiring diagram. Brazed-in switches require professional refrigerant recovery. Best handled by an HVAC technician.\u003c\/p\u003e\u003cp\u003eGenuine Goodman part with fast, reliable shipping.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058289262963,"sku":"GOODMAN-15638","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-low-pressure-switch-for-aph1543m41ba-0130m00075","provider":"National HVAC Parts","version":"1.0","type":"link"}