OEM Lennox Camstat Fan & Limit Control 3in — Y8848
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The Lennox Y8848 is a genuine OEM Camstat combination fan and limit control (Supco FAL3C05TD120A equivalent) with a 3-inch sensing element. It combines two essential functions: timing the blower motor on and off based on plenum temperature, and acting as a high-limit safety that shuts down the burners if the furnace overheats. This dual-purpose control keeps your Lennox furnace comfortable and protected.
Common failure symptoms: A failing Y8848 can cause the blower to run constantly or not at all, cold air from the vents, short-cycling, or repeated limit trips and lockouts. Pitted contacts and a fatigued bimetal element are typical causes after years of heating cycles.
Why OEM matters: The fan-on/fan-off setpoints, limit trip temperature, and 3-inch probe are engineered specifically for your Lennox heat exchanger. The factory-spec Y8848 drops in with the correct calibration and mounting for safe, efficient operation. Substitutes with mismatched settings can create cold drafts, nuisance trips, or inadequate safety protection. Choose genuine OEM to protect your equipment and its warranty.
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