{"product_id":"oem-lennox-freeze-protection-control-fpc-34n04","title":"OEM Lennox Freeze Protection Control (FPC) — 34N04","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e34N04\u003c\/strong\u003e is an HN freeze protection control (FPC) for Lennox HVAC systems. It monitors coil and refrigerant temperature and interrupts compressor operation when conditions could cause the evaporator coil to freeze — protecting the coil, compressor, and refrigerant charge from the damage that a freeze-up or low-temperature fault can cause.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e A faulty \u003cstrong\u003e34N04\u003c\/strong\u003e may allow the coil to ice over during cooling, cause the compressor to shut down for no clear reason, produce nuisance freeze lockouts even in normal conditions, or leave the system with weak cooling and poor airflow. Erratic compressor cycling tied to temperature is a telltale sign the freeze protection control needs replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Freeze protection thresholds are matched precisely to Lennox coil design and refrigerant behavior. A generic control with different trip points can either freeze the coil or lock out the compressor unnecessarily. The factory \u003cstrong\u003e34N04\u003c\/strong\u003e delivers the correct setpoints, exact terminal layout, and dependable freeze protection your Lennox equipment was engineered to use.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081131606387,"sku":"LNX-34N04","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-freeze-protection-control-fpc-34n04","provider":"National HVAC Parts","version":"1.0","type":"link"}