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International Comfort Products T8DNL050B12A1 Control Board
The control board is designed to control the gas valve, the igniter, most sensors as well as the blower all together. It is impossible for your furnace or air handler to even activate lest the main control board is properly connected to the unit. You must do some research when choosing a control board due to so many small differences in brands, models and types of systems. Any control board you choose must be compatible with both the brand and model of the system you have installed.
Signs to watch for in a failing main board
- When turned on, there is an error code randomly appearing on the front of the control board
- The HVAC system needs to be reset habitually for it to run correctly
- The furnace or AC is unable to do anything at all
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