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Mitsubishi MSZ-GE09NA Ignition Control Board
The main reason to have an ignition control board is that it controls the main gas intake valve, the igniter as well as other safety devices. It has always been a vital safety feature that, over the years, has merged to become a major component of the main board for safety reasons.
How can I tell if my main ignition board is crapping out?
- Every other potential issue within the furnace checked out to be a-OK
- The on-signal from the thermostat never turns up at the main board
- The ignition system can not initiate when it receives a proper signal
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