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International Comfort Products PH5548AKA1 Control Board
Your system definitely will not run at all without the main control board hooked up and is correctly configured. The control board is designed to command everything including the gas valve, the igniter, all the sensors and the blower all at once. Be very careful when you choose a replacement due to so many small differences in certain brands. The proper control board will have a part number that will match the brand and the model of HVAC system.
Cues of an unhealthy International Comfort Products control board
- AC or heating system declines to work period
- The control board has to be powered down and back up quite frequently for it to run correctly
- Could be an flashing code indicated somewhere on the circuit board
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