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Heat Controller VMH18SC-1 Control Board
The Heat Controller VMH18SC-1 control board is created to command everything including the gas valve, the igniter, all the various sensors as well as the blower all in one unit. Heating and cooling systems will not even operate without the main control board in its proper place and configured for your unit. It is imperative that you select wisely while searching to pick up a replacement control board because of the many variances of systems. Any control board you choose will need to pair with the part number from both the make and model of furnace or air handler you have.
Major indications to watch for in a bad primary control board
- There seems to be an error code directly on the front of the control board
- The heating and cooling system declines to start at all
- The system has to be powered down and back up repeatedly in order to operate
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