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International Comfort Products GPFM36K080F Limit Switch
Limit switches exist because if the warmed air is too cool then you will never get hot air through the ducts. The limit switch contains a sensor in the heat exchanger that makes the determination if and when the air is warm enough to activate the main blower.
Cues of a deteriorating limit type switch
- Your system is starting to become inconsistent often
- The heating and AC system will not begin the ignition sequence or continue to run longer than a minute
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