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International Comfort Products GNL075N12C1 Control Board
The control board is created to oversee the gas valve, the igniter, the flame sensor and the blower all at once. It is impossible for your furnace or air handler to even run without the control board installed. Be very careful when you choose a control board because of the diversity of brand and air handler types. Any control board you choose is supposed to have a part number that matches the brand and the model of the system you have installed.
How do you know when your main circuit board is about to go out?
- The system has to be turned off and back on repeatedly for the system to continue working
- There may be lit up error code randomly appearing on the board
- The AC or furnace ceases to start well
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