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Lennox XC21-060 Defrost Sensor Board
The defrost sensor board determines when or if to start the defrost cycle which actually helps to continue normal heating and cooling operations. The board is relayed information from a sensor located somewhere by the condenser to verify when the defrost cycle should begin.
Some clues the defrost sensor board will die soon
- The defrost sequence does not run especially when there is a rather large amount of frost in the way
- Your HVAC system will not work due to the fact that there is too much frost
- The main control board could signify a particular error code referring to a bad defrost board
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Before you decide on buying or ordering any Lennox XC21-060 part, do your due diligence and double check the model number and also make a visual inspection so that you are positive that the correct replacement defrost sensor board is being ordered. Some pros could be quite expensive to hire so it may be beneficial to look around your area to find a good deal if money is a concern.
Feel free to download your manual for help.
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