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Nordyne MS3BC048KA Limit Switch
This is important due to the fact that if the air never warms up inside the exchanger then you will never get hot air through the ducts. A normal limit switch is a type of sensor switch in the heating area that can determine when the heated air is actually warm enough for the main blower to kick in and circulate the air.
General warnings of a poorly performing limit switch
- The HVAC system will not start or will not stay running for any length of time
- The HVAC system is starting to initiate and then stops on a regular basis
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