{"product_id":"oem-lennox-transformer-10p17","title":"OEM Lennox Transformer — 10P17","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e10P17\u003c\/strong\u003e transformer steps down incoming line voltage to the 24-volt low-voltage control power that runs your Lennox thermostat, control board, relays, and gas valve. It is the heart of the control circuit — without it, none of the low-voltage components can operate. This transformer is built to Lennox specifications for the correct primary and secondary voltages and VA rating.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms\u003c\/strong\u003e include a completely dead thermostat, a system that will not respond to any call for heat or cooling, a tripped or blown low-voltage fuse, an overheated or humming transformer, or a burnt smell from the control compartment. A shorted \u003cstrong\u003e10P17\u003c\/strong\u003e can also repeatedly blow the board fuse until it is replaced.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e The \u003cstrong\u003e10P17\u003c\/strong\u003e must deliver the exact secondary voltage and current capacity your Lennox control board and accessories expect. An OEM transformer ensures proper VA output, correct terminal configuration, and safe, code-compliant operation — preventing the brownouts and premature fuse failures that under-rated aftermarket transformers commonly cause. Installing the factory part restores reliable control power and protects the rest of your low-voltage circuit.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081136685427,"sku":"LNX-10P17","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-10P17.jpg?v=1783763982","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-transformer-10p17","provider":"National HVAC Parts","version":"1.0","type":"link"}