{"product_id":"oem-lennox-low-pressure-switch-12l21","title":"OEM Lennox Low Pressure Switch — 12L21","description":"\u003cp\u003eThe \u003cstrong\u003eLennox 12L21\u003c\/strong\u003e is a genuine OEM low pressure switch that monitors refrigerant pressure on the low side of your Lennox air conditioning or heat pump system. When refrigerant pressure drops below the safe threshold, this switch interrupts system operation to prevent compressor damage caused by low refrigerant or restricted airflow. Common symptoms of a failed \u003cstrong\u003e12L21\u003c\/strong\u003e include compressor not engaging, system lockout, or erratic cycling on Lennox equipment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081035628915,"sku":"LNX-12L21","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-low-pressure-switch-12l21","provider":"National HVAC Parts","version":"1.0","type":"link"}