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Haier CPN12XH9 Ignition Control Board
The main ignition control board has control over the main gas intake valve, the ignition ignitor and a few other devices. It has been a very important circuit board that, in most cases, has become a part of the main control board for enhanced safety.
Major indications of a poorly performing main ignition board
- Ignition cycle does not fire up even though it is supposed to
- Every other problem within the heating and AC system checked out to be in fine condition
- Signal from remote thermostat does not reach the control board
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