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International Comfort Products TCA230AKA1 Limit Switch
The limit switch has a sensor in the air handler that decides when the heated air is warm enough that it can be circulated throughout the house. A limit switch was crafted because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
Symptoms limit switch will not live much longer
- The system is starting to go through the startup sequence but stops quickly on a regular basis
- System is unable to start or will not stay running even though the desired temperature has not been attained
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