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Carrier 58MXA120 Ignition Control Board
The main ignition control board checks out the main gas intake valve, the igniter and all the flame sensing devices. It is an important device that some manufacturers have decided to blend to be a part of the main control board instead of its own individual board.
Signs your ignition control board is on its last leg
- Every other thing in the heating and cooling system checks out in good health
- The initial signal from the thermostat never reaches the Carrier control board
- The ignition cycle declines to kick in even when the thermostat kicks it on
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