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Carrier 30HR Control Board
The control board is designed to oversee everything including the gas valve, the ignition igniter, all the various sensors as well as the blower all in one unit. Your air handler will be unable to operate whatsoever without the control board properly connected to the unit. A control board that you have chosen will need to be a match with your existing board and be compatible with both the brand and model of the unit in question. Be very careful when you choose a control board due to the many differences between certain brands.
Major clues your main board will need replacing
- The furnace or AC does not function at all
- There is numbered code indicated directly on the control board
- Everything has to be reset quite often for the system to operate once again
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