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Lennox CB30U-31 Control Board
Your air handler will be unable to run without this vital piece of hardware is accurately installed and configured. The Lennox CB30U-31 control board is designed to regulate everything including the gas valve, the igniter, most sensors and the blower all together. Be absolutely sure when you are choosing a replacement board due to the many differences between models within certain brands. The board you choose should match the model number with both the brand and specific model of the system you have installed.
What are some indications that my HVAC circuit board is almost dead?
- There is a flashing error code appearing on the circuit board
- Air conditioning or heating system is unwilling to start whatsoever
- The entire system has to be turned off and back on all the time for the thermostat to kick in
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If you decide on picking up or purchasing do your best and double check the correct model and also make a visual comparison in order to be sure the correct control board is the one being purchased. The installing of a new control board is a breeze provided you have the time and have the tools to get it done.
Feel free to download your manual for help.
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