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Frigidaire FRP77PTT2R0 Limit Switch
A normal limit switch is a switch located in the furnace that senses, or governs, if and when the air is warm enough so that it may be pushed through the ducts and out the vents. Limit switches are built because if the air never warms up the you will lose all the heat as the air flows through the ducts.
Symptoms of an ineffective limit switch
- The whole system is starting to shut down unexpectedly on a regular basis
- System will not even start or continue to run even though the desired temperature has not been attained
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