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Haier HPN12XHM Ignition Control Board
The main reason to have an ignition control board is that it has control over the gas valve, the ignition ignitor and all the flame sensing devices. It is an important safety feature that, in most cases, has become a standard part of the main board for the sake of being more efficient.
Subtle cues of a declining ignition control board
- The primary ignition sequence will not launch no matter what
- Any other potential problem throughout the system is inspected and turns out to be in good condition
- The initial signal from the thermostat does not reach the main control board
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