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LG LMN090HE Flame Sensor
The flame sensor is a regulatory sensor that will dependably sense the appropriate flame during the initial ignition of the furnace. As with most safety features, if the flame sensor is triggered everything comes to a halt until the main issue is remedied.
Major symptoms of an ineffective safety flame sensor
- The heating system is unwilling to even begin to start and shows an error code on the board
- The gas that has entered the furnace refuses to ignite and shut down
- The furnace starts sporadically barely
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