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LG LMN120CE Ignition Control Board
Another safety feature is the ignition control board, which keeps an eye on gas flow, the igniter and the flame sensing circuits. It has always been a vital safety device that is now usually a part of the main control board for safety reasons.
How do you know if your main ignition board is crapping out?
- Every other device in the HVAC system checked out to be okay
- Communication from the thermostat does not turn up at the main control board
- The ignition system can not start at all
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