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Haier CPN12XC9 Control Board
The control board is designed to control everything including the gas valve, the ignition igniter, the flame sensor as well as the blower all together. Heating and cooling systems will not even operate without this vital piece of hardware is installed as it should be according to the manufacturer. Be absolutely sure upon choosing a board as a replacement due to differences in models and types. The control board picked will have to be compatible with both the brand and model of HVAC system.
Major warnings your primary control board is dead
- The board has to be powered down and back up a lot for the thermostat to kick in
- Your HVAC unit is unwilling to work at all
- When turned on, there is some sort of error code appearing on the front of the control board
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