{"product_id":"oem-lennox-transformer-47k20","title":"OEM Lennox Transformer — 47K20","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e47K20\u003c\/strong\u003e transformer steps down high-voltage line power (typically 120\/240V) to the 24-volt low-voltage control power your Lennox system's thermostat, control board, relays, gas valve, and contactor depend on. Without a healthy transformer, none of the low-voltage controls that orchestrate heating and cooling can operate.\u003c\/p\u003e\u003cp\u003eCommon symptoms of a failed transformer include a completely dead thermostat, a system that won't respond to any call for heat or cool, a blank control board with no 24V power, or a transformer that hums, buzzes, or shows scorch marks from an overload or short. A shorted low-voltage circuit will often take the transformer with it, so the underlying fault should be found and corrected during replacement.\u003c\/p\u003e\u003cp\u003eSelecting the OEM Lennox \u003cstrong\u003e47K20\u003c\/strong\u003e matters because transformers must match the correct primary and secondary voltages and VA rating for your equipment. An under-rated or mismatched transformer can overheat, fail early, or leave controls under-powered. The factory-spec part ensures the proper voltage, sufficient capacity, and a direct fit for reliable operation of your Lennox system.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081105129843,"sku":"LNX-47K20","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-LNX-47K20.jpg?v=1783764004","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-transformer-47k20","provider":"National HVAC Parts","version":"1.0","type":"link"}