The flame sensor for dryers, compatible with both LG and Sears-Kenmore models, serves as a vital OEM replacement component specifically crafted for LG dryers. Its chief role is to assess the igniter's temperature, ensuring it reaches the required level to ignite the gas burner effectively. Comprising a metal rod capped with a ceramic tip, the sensor seamlessly integrates into an electrical circuit. During dryer operation, it detects the burner's heat and relays a signal to the dryer's control board, which in turn activates the gas valve to ignite the burner.
Should the sensor fail to detect a flame, the control board promptly halts the gas valve's function, thereby ceasing dryer operation to maintain safety. Prior to sensor installation, detaching the dryer from its power source is recommended. This overview details the function and safe installation process of the flame sensor.