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International Comfort Products TCA042AKA1 Limit Switch
The main reason limit switches are made is due to the fact that if the air inside the furnace is too cool then you will never get hot air through the ducts. A normal limit switch contains a sensor located in the furnace that makes the determination if and when the air is warm enough for the blower to be activated.
What to see if the critical limit switch is almost going bad?
- Your International Comfort Products system is unable to start or will not stay running longer that five minutes
- The HVAC system begins to become unpredictable from time to time
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