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Samsung UQB09JJWC Control Board
The HVAC system will be unable to operate lest the circuit board is correctly installed. The control board is designed to oversee everything including the gas valve, the igniter, all the sensors and the blower all together. It is imperative that you select wisely while selecting a replacement due to the many differences between brands, models and types of systems. The selected board will have to match part numbers both the brand and model of furnace or air handler you have.
Key clues of a worsening main board
- The heating and cooling system is unwilling to do anything correctly
- Could be an flashing code directly on the circuit board
- Power to the control board has to be powered down and back up quite often for it to run correctly
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