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Haier CPN12XH9-E Ignition Control Board
The ignition control board is a safety device that keeps an eye on the gas valve, the ignition sequence as well as other safety devices. It is an important safety feature that some manufacturers have decided to blend to be a part of the main control board instead of having two separate boards.
Main clues the chief ignition control board is dying
- Every other problem in the system is inspected and turns out to be fine
- Heating and cooling system is unable to fire up when it receives a proper signal
- Initial communication from the home thermostat never moves to the main control board
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