{"product_id":"oem-lennox-defrost-control-sensor-28w71","title":"OEM Lennox Defrost Control Sensor — 28W71","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e28W71\u003c\/strong\u003e defrost control sensor monitors coil temperature on your Lennox heat pump and signals the control board to initiate a defrost cycle when frost or ice accumulates on the outdoor coil. Precise temperature readings from this sensor are what keep your system defrosting only when needed, protecting efficiency during cold-weather operation.\u003c\/p\u003e\u003cp\u003eWhen the \u003cstrong\u003e28W71\u003c\/strong\u003e sensor fails or drifts out of calibration, you may notice ice buildup on the outdoor unit, defrost cycles that run too often or not at all, reduced heating output, or a system that short-cycles in cold weather. A faulty sensor can also trip fault codes on the defrost board.\u003c\/p\u003e\u003cp\u003eChoosing the OEM Lennox \u003cstrong\u003e28W71\u003c\/strong\u003e guarantees the exact resistance curve and connector fit your equipment expects. Generic or aftermarket sensors can report inaccurate temperatures, leading to poor defrost timing, wasted energy, and premature compressor wear. Install the factory-specified part to restore proper defrost control and protect your Lennox heat pump investment.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081089204595,"sku":"LNX-28W71","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-defrost-control-sensor-28w71","provider":"National HVAC Parts","version":"1.0","type":"link"}