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Mitsubishi MSZ-A12NA Ignition Control Board
The ignition control board is a safety device that controls the gas valve, the ignition sequence and other important devices. The ignition control board was always an important safety feature that is now usually a standard part of the main board instead of a separate board.
Clues the major ignition board is in dire need of a replacement
- Initial sequence will not initiate when it is supposed to
- Every other thing attached to the system checks out acceptable
- The initial signal from the home thermostat never turns up at the main board
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If you are going to be buying or ordering any Mitsubishi MSZ-A12NA replacement part do your best and double check the model number and also make a visual comparison so that you are positive that the right ignition control board is the one being purchased. HVAC professionals can be expensive so you may want to keep a lookout locally to find a good deal if money is a concern.
Feel free to download your manual for help.
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