OEM Lennox Fan Relay — 13W13
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine OEM Lennox 13W13 fan relay is an electrical switching component that energizes your blower motor on command from the thermostat or control board. Acting as the bridge between the low-voltage control circuit and the higher-voltage fan motor, the 13W13 ensures the blower starts and stops at exactly the right time in compatible Lennox systems.
Common Failure Symptoms
Relay contacts wear, pit, or weld over thousands of cycles. Symptoms of a failing fan relay include a blower that won't turn on, a fan that runs continuously and won't shut off, intermittent operation, buzzing or chattering at the relay, or no airflow despite the system calling for heating or cooling.
Why OEM Matters
Fan relays must be rated for your motor's exact voltage and amperage load. An under-spec or generic relay can overheat, weld its contacts, or fail prematurely, leaving you without airflow. The OEM Lennox 13W13 is built to your equipment's electrical specifications for dependable switching and long service life, while helping preserve your system 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