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International Comfort Products HPFM48K000A Limit Switch
This is important because if the air is not warm enough then the house will never get warm enough. The limit switch is a type of sensor switch in the heating area that decides if and when the air is actually warm enough for the air to begin normal home circulation.
Important clues of a laboring main limit switch
- Your system is beginning to run erratically from time to time
- System will not start or continue to run like it is supposed to
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