OEM Lennox Flame Rollout Switch — 15M44
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The genuine OEM Lennox 15M44 flame rollout switch is a manual-reset safety control mounted near the burner box of your Lennox furnace. It detects flames that escape, or "roll out," from the combustion chamber — a condition caused by blocked venting, a cracked heat exchanger, or a restricted flue — and immediately cuts power to the gas valve to prevent fire and heat damage.
Typical symptoms include a furnace that locks out and won't restart, no heat after a rollout event, visible scorching near the burners, or a switch that trips soon after ignition. Because a rollout trip signals a genuine combustion problem, the underlying cause — such as a dirty burner, poor draft, or heat-exchanger crack — should always be inspected along with the switch.
Installing the OEM Lennox 15M44 ensures the correct trip temperature and mounting fit your specific furnace design. A substitute switch may trip at the wrong point or fail to react, defeating a life-safety function. The factory-specified part restores proper protection, preserves your warranty, and keeps your Lennox furnace operating safely.
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