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Carrier 51CM Control Board
It is impossible for your furnace or air handler to even run at all lest the main control board is in connected and operational. The Carrier 51CM control board is made to regulate the gas valve, the ignition igniter, all the sensors as well as the blower all at once. Any control board you choose must have a matching part number consistent with both the brand and specific model of furnace or air handler you have. Be absolutely sure when you decide to replace your control board due to the many differences between brand and air handler types.
Red flags your Carrier control board is in dire straights
- The HVAC system has to be powered down and back up habitually in order to operate
- There seems to be an error code appearing on the board
- The unit ceases to work whatsoever
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Before buying or purchasing a new Carrier 51CM replacement part do your best and cross-check the correct model and also make a visual inspection in order to be sure the correct replacement control board is the one being purchased. If you are not sure about installing the new control board by yourself then it is probably best to contact a professional to do the work for you.
Feel free to download your manual for help.
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