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Carrier 25HNA636A0030020 Control Board
The Carrier 25HNA636A0030020 control board is created to command the gas valve, the igniter, all the various sensors and the blower all together. Your system definitely will not be able to function without the main control board installed as it should be according to the manufacturer. The proper control board will need to pair with the part number from both the brand and model of your particular system. You must do some research while searching to pick up a replacement control board because of the many variances of brands, models and types of systems.
General indicators that your main board should be replaced
- The entire system has to be turned off and back on more often than not for the system to operate once again
- System has a strange type of error code displayed on the board
- Air conditioner or furnace will not function whatsoever
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