OEM Lennox Control Board Kit — 19S83
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The 19S83 is a genuine OEM Lennox control board kit that serves as the electronic brain of your HVAC system, coordinating ignition sequencing, blower and inducer operation, safety-switch monitoring, and overall system timing in compatible Lennox equipment. Supplied as a complete kit, it includes the components needed for a proper replacement and reliable operation.
A failing control board can produce a wide range of symptoms: the furnace won't start or fires intermittently, the blower runs constantly or not at all, error/fault LED codes appear, relays chatter, or the system locks out after ignition attempts. Power surges, heat stress, and aging solder joints are common causes of board failure.
Because the control board governs safety-critical operations, the OEM Lennox 19S83 kit is the right choice. It guarantees correct firmware, wiring-harness compatibility, and relay ratings matched to your unit — protection that generic boards can't reliably provide. A factory-original board restores safe, precise control and full functionality to 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