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International Comfort Products HPFM30K000A Limit Switch
The limit switch is a type of sensor switch in the heating area that can determine if and when the air is actually warm enough for the air to begin normal home circulation. Limit switches are crucial due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts.
Simple indications of a dying critical limit switch
- The system is beginning to behave differently on a regular basis
- The HVAC system will not initiate or will not stay running for any significant length if time
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