OEM Lennox Ignition Control Board — 83W88
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine OEM Lennox 83W88 ignition control board is the brain of your furnace's ignition sequence, coordinating the igniter, gas valve, blower, and safety circuits to deliver reliable, efficient heating. Engineered to exact Lennox specifications, it ensures precise timing and full compatibility with your factory control system.
When this board fails, you may experience no ignition, repeated lockouts, short cycling, an igniter that never heats, error codes on the diagnostic LED, or a furnace that ignites intermittently. Because the board manages critical flame-sensing and safety functions, a faulty unit can leave your home without heat entirely.
Choosing OEM matters for Lennox equipment: aftermarket boards often use different firmware, connector layouts, and timing profiles that can trigger nuisance faults or defeat built-in safety interlocks. The 83W88 drops in with the correct pinout and programming, restoring dependable ignition and protecting the warranty coverage on your Lennox system.
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