Carrier 50HJ401431 Flame Sensor – OEM Furnace Flame Detection Rod
🔥 Product Overview
The Carrier 50HJ401431 Flame Sensor is a genuine OEM replacement designed to verify burner flame presence and ensure safe furnace operation. It prevents nuisance shutdowns by signaling the control board when proper combustion is detected.
Built with a corrosion-resistant stainless steel sensing rod and quick plug-in connection, this sensor installs easily and restores reliable ignition, steady heating performance, and safe system operation.
✅ Key Features
✔ Genuine OEM Carrier replacement flame sensor
✔ Confirms burner flame presence for safe operation
✔ Prevents nuisance lockouts and short cycling
✔ Improves ignition reliability and heating performance
✔ Corrosion-resistant stainless steel sensing rod
✔ Plug-in electrical connection for quick installation
✔ Single-screw mounting design
📊 Specs Table
| Specification | Details |
|---|
| Brand |
Carrier |
| Part Number |
50HJ401431 |
| Type |
Flame Sensor |
| Function |
Flame Proving |
| Material |
Stainless Steel |
| Mounting |
Single-screw |
| Connection |
Plug-in |
| Approx. Dimensions |
2.9" W x 4.0" L |
| Application |
Gas furnaces & rooftop units |
⚠ Common Symptoms
• Furnace ignites then shuts down
• Burners will not stay lit
• Repeated system lockouts
• Flame failure error codes
• Short cycling
• No heat with working igniter
❓ Frequently Asked Questions
Q: What does this flame sensor do?
It detects the burner flame and tells the control board to keep the gas valve open.
Q: How do I know mine is bad?
If your furnace lights but shuts off after a few seconds, the flame sensor is a common cause.
Q: Is this a universal part?
No — this is an OEM Carrier replacement and must match your original part number.
Q: Can I clean it instead of replacing it?
Cleaning may work temporarily, but replacement is the best long-term solution.
🛒 Shopping Tips
🧭 Always match your original Carrier part number
🧽 Replace if corroded or pitted
🧰 Shut off power and gas before servicing
