Universal Furnace Flame Sensor — PFS401 White Rodgers Compatible
Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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Universal furnace flame sensor rod — PFS401 style compatible with White Rodgers 760-401 and dozens of other OEM part numbers. The flame sensor detects whether the gas burner has successfully lit — without a working sensor, the furnace will shut off gas flow within seconds as a safety measure.
Symptoms of failure: Furnace lights then shuts off after 3-7 seconds, furnace locks out after repeated ignition attempts, LED code shows "flame failure," yellow/orange buildup visible on sensor rod.
- Type: Single-rod flame sensor
- Material: Stainless steel rod with ceramic insulator
- Compatibility: White Rodgers, Honeywell, and universal fit
- Warranty: 1-year replacement warranty
Install difficulty: 1/5 — Turn off power. Remove 1 screw holding the sensor. Pull out old sensor, insert new one. Replace screw. 3 minutes. Tip: try cleaning the old sensor with fine sandpaper first — often fixes the issue without replacement.
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