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Nordyne FG7TK Defrost Sensor Board
The defrost sensor board commences the defrost sequence which actually helps to continue normal heating and cooling operations. It is influenced by a specific sensor located in the outdoor unit to agree when to initiate the defrosting cycle.
What warnings should I watch out for to know if my Nordyne defrost sensor board is failing?
- AC and heating system could not run because of frost blocking the fins on the outside unit
- Self defrost sequence never runs even though there is a large amount of frost that needs to be removed
- The main board could throw an error of some type produced by too much frost
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