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Frigidaire FRP77PTT3R0 Limit Switch
The limit switch has a sensor in the heating area that can determine if and when the air is warm enough that it can be circulated throughout the house. The reason limit switches exist is because if the air never warms up then you will never get hot air through the ducts.
What to see if the limit switch is in need of replacing?
- The whole system is beginning to go through the startup sequence but stops quickly from time to time
- The heating and AC system will not start nor will it stay running for any length of time
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