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International Comfort Products TCH218AKA1 Control Board
The control board is designed to direct the gas valve, the igniter, all the sensors as well as the blower all in one unit. Most systems will not be able to function without the control board accurately installed and configured. A replacement board will need to pair with the part number from the brand and the model of air handler system you have. You must be careful when you choose a control board because of the wide variety of heating and cooling systems.
What are the signs that the main board is almost going bad?
- Power to the circuit board has to be turned off and back on many times a day for the thermostat to kick in
- The HVAC system declines to start properly
- There is a numbered error code lit up somewhere on the circuit board
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