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International Comfort Products T9MPT125L20B1 Control Board
The HVAC system will be unable to operate without the control board properly connected to the unit. The control board is constructed to control everything including the gas valve, the igniter, all the various sensors as well as the blower all in one unit. The proper control board is supposed to have a part number that matches both the brand and model of furnace or air handler you have. Be absolutely sure when you decide to replace your control board due to the vast differences in brand and air handler types.
General warnings to watch for in a bad primary control board
- There seems to be lit up error code being displayed somewhere on the circuit board
- Your HVAC unit declines to initialize correctly
- Power to the circuit board has to be powered down and back up many times a day for it to work
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