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International Comfort Products PH5536AKA1 Limit Switch
Limit switches exist due to the fact that if the air never warms up inside the exchanger then the house will never get warm enough. The limit switch is a type of sensor switch located in the furnace that can determine when the air is warmed to a point to activate the main blower.
What are the signs that the limit switch most likely is almost going bad?
- Your system is starting to act differently repeatedly
- System refuses to start or run well longer than a minute
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