OEM Lennox Hot Surface Ignitor — 36N77
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine OEM Lennox 36N77 hot surface ignitor is the component that glows red-hot to light the burners each time your Lennox furnace calls for heat. Built to the exact resistance and temperature specifications Lennox requires, it provides fast, dependable ignition cycle after cycle through the heating season.
Common failure symptoms: A failing ignitor is one of the most frequent causes of no-heat calls. Watch for a furnace that clicks but never lights, a blower that runs cold, short-cycling on ignition lockout, or a visible crack in the ignitor element. Ignitors are brittle and degrade with every heat cycle, so they are a common wear item.
Why OEM matters: Universal ignitors often carry the wrong resistance value or mounting bracket, leading to weak ignition, nuisance lockouts, or premature burnout. The factory-matched 36N77 drops into your Lennox furnace with the correct element, connector, and orientation for reliable first-strike lighting. Restore dependable heat with the part Lennox specifies. In stock and ready to ship same day.
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