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Carrier 58DLX09010020 Ignition Control Board
Another safety feature is the ignition control board, which keeps an eye on gas flow, the ignition sequence and the flame sensing circuits. It is an important circuit board that, over the years, has merged to become a piece of the main circuit board for enhanced safety.
Main clues the major ignition board is on its last leg
- Communication from the primary thermostat never makes contact with the main board
- Everything else in the heating and cooling system is looked at and turns out to be in fine condition
- Ignition sequence is unwilling to fire up at all
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