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Carrier 58STX04510008 Defrost Sensor Board
The defrost sensor board instructs the outdoor unit to begin an important defrosting cycle in order to continue normal heating and cooling operations. The defrost board is relayed information from a defrost sensor which is near the condenser somewhere, in order to determine when to begin.
What symptoms are present when the defrost sensor board really needs to be replaced?
- Self defrost sequence has not run for quite some time even though there is excessive frost built up
- The main control board could display an error number when the defrost board fails
- The whole system may end up not running due in part to the fact that there is too much frost
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