Lochinvar & A.O. Smith 100208631 Flame Sensor Harness

Lochinvar & A.O. Smith 100208631 Flame Sensor Harness

The Lochinvar & A.O. Smith 100208631 is an OEM replacement flame sensor harness designed to maintain a secure and reliable electrical connection between the flame sensor and the appliance control board. A properly functioning flame sensor harness is critical to safe burner operation — it transmits the flame rectification signal that confirms ignition and keeps the gas valve open during normal operation. Using a genuine OEM harness ensures correct fit, proper signal conductivity, and long-term reliability.

Key Features

• OEM replacement flame sensor harness for compatible Lochinvar and A.O. Smith appliances
• Maintains signal integrity between the flame sensor and control board
• Supports accurate flame rectification for safe burner operation
• Engineered to meet original factory specifications for fit and performance
• Helps prevent nuisance lockouts caused by faulty or degraded wiring connections
• Direct drop-in replacement — no modification required

Application

This flame sensor harness is a genuine replacement part intended for use with compatible Lochinvar and A.O. Smith water heaters and boilers. Always verify compatibility with your specific model number before installation.

Installation Notes

• Disconnect power and gas supply before servicing
• Follow all applicable local codes and manufacturer installation guidelines
• Recommended for installation by a qualified HVAC or plumbing technician