OEM Lennox 15T94 Ignition Control Board — 15T94
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30-Day Returns
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The genuine OEM Lennox 15T94 Ignition Control Board is the brain that manages the ignition and safety sequence of your Lennox gas furnace. It coordinates the inducer motor, igniter, gas valve, and flame sensing, then energizes the blower — verifying each safety condition in the correct order so your furnace lights reliably and shuts down safely on any fault.
Common failure symptoms: A failing 15T94 often shows up as a furnace that won't ignite, short-cycles, locks out after several ignition attempts, runs the inducer but never lights, or leaves the blower running continuously. Cracked solder joints, blown onboard fuses, and corroded relays are typical causes of an unreliable or dead control board.
Why OEM matters: Ignition boards manage live gas and high-voltage components, so exact timing and safety logic are critical. The factory 15T94 is programmed and built to Lennox specifications, ensuring proper flame-sense thresholds, correct sequencing, and full compatibility with your furnace's wiring and components. Choosing OEM protects both performance and safety.
Shipping Information
- Orders placed before 3PM CST ship same business day
- Standard delivery: 2-5 business days
- Express shipping available at checkout
- Free shipping on orders over $75
- Tracking number emailed upon shipment
Return Policy
- 30-day returns on unused parts in original packaging
- Electrical parts (capacitors, contactors, control boards) are final sale once installed
- Email info@nationalhvacparts.com to initiate a return
- Refunds processed within 5-7 business days