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Fujitsu ASU36CLX1 Control Board
It is impossible for your furnace or air handler to even operate without the main control board in connected and operational. The Fujitsu ASU36CLX1 control board is constructed to direct the gas valve, the igniter, the flame sensor as well as the blower all together. The brand of board you choose will need to pair with the part number from the brand and the model of furnace or air handler you have. It is imperative that you select wisely while picking a new replacement board due to so many small differences in brands, models and types of systems.
Some warnings of a worsening main board
- There may be an error code displayed on the circuit board
- The board has to be turned off and back on more often than not for the furnace or AC to kick on
- Air conditioner or furnace cannot do anything whatsoever
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