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International Comfort Products NTC7100BHA1 Control Board
The entire heating and cooling system will not run unless this board is in place and connected. The control board is designed to control everything including the gas valve, the igniter, all the sensors and the blower all in one unit. You should always be careful when you are deciding on a replacement because of the diversity of brand and air handler types. The board you choose must have a matching part number consistent with the brand and the model of your particular system.
Key symptoms of an inadequate control board
- There is some sort of code being shown on the board
- Everything has to be turned off and back on rather frequently for the thermostat to kick in
- The AC or furnace cannot initialize whatsoever
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