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Carrier 48XP042090300 Ignition Control Board
The purpose of the ignition control board is that it manages the gas valve, the ignition ignitor as well as other safety devices. It has been a very important safety feature that some companies have moved to be a vital part of the main control board instead of its own individual board.
Major warnings your Carrier ignition control board has very little life left
- Every other problem throughout the system is looked at and turns out to be in good health
- The main ignition cycle declines to launch no matter what
- The on-signal from the main thermostat never turns up at the control board
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