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International Comfort Products TXA242AKA1 Limit Switch
Limit switches exist because if the air is too cool inside the furnace to begin with, the you will lose heat in the ducts and the vents will just blow cool air. The limit switch contains a sensor in the air handler that determines when the air is actually warm enough that it can be circulated throughout the house.
What are the signs that the chief limit switch is not working right?
- The HVAC system will not begin the ignition sequence or will not stay running like it should
- Your system is beginning to behave differently time after time
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