{"product_id":"oem-lennox-transformer-72h94","title":"OEM Lennox Transformer — 72H94","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e72H94\u003c\/strong\u003e transformer steps down incoming line voltage to the low-voltage (typically 24V) control signal that powers your thermostat, control board, contactor, and relays. Without a properly functioning transformer, the entire control circuit of your Lennox system loses power, and the unit will not respond to a call for heating or cooling.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e a completely unresponsive thermostat, a blank or dead control board, a system that won't start despite line power being present, a burning or overheated smell near the control panel, or a visibly scorched transformer body. Transformers often fail from voltage spikes, a shorted control wire, or a seized component drawing excess current.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e the Lennox 72H94 is engineered to the exact VA rating, primary\/secondary voltage, and mounting footprint your equipment requires. Generic transformers can be undersized, leading to nuisance trips, chattering contactors, or premature failure. Installing the factory-specified \u003cstrong\u003e72H94\u003c\/strong\u003e ensures a correct electrical match, proper fit, and the rated reliability your Lennox system was designed around.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081096774003,"sku":"LNX-72H94","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-72H94.jpg?v=1783764021","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-transformer-72h94","provider":"National HVAC Parts","version":"1.0","type":"link"}