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Frigidaire FRP12ETT2A0 Limit Switch
A normal limit switch is a type of sensor switch in the air handler that decides when the heated air is warm enough for the main blower to kick in and circulate the air. The reason limit switches exist is because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts.
Major symptoms to watch for in a failing limit type switch
- Your system is starting to erratically frequently
- The heating and AC system refuses to kick in or will not stay running for any significant length if time
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