OEM Lennox Fan and Limit Control — 13P93
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The genuine OEM Lennox 13P93 fan and limit control is a combination device that regulates furnace blower operation and provides essential high-limit safety protection. It commands the blower to start once the heat exchanger reaches temperature and to stop after it cools, and its high-limit contacts de-energize the burners should the plenum overheat — protecting your Lennox furnace and your home.
Symptoms of a defective 13P93 include a blower motor that runs continuously or fails to engage, nuisance high-limit trips, no heat output, or rapid burner short cycling. These issues typically trace back to a control whose bimetal sensing element has drifted out of calibration or failed outright.
By choosing the OEM 13P93, you get the exact temperature thresholds, sensing geometry, and mounting dimensions Lennox designed for its furnaces. Aftermarket controls with mismatched setpoints can degrade comfort, waste energy, and compromise the safety shutoff function. Installing the factory-specified part restores correct blower sequencing and dependable overheat protection while keeping your warranty intact.
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