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Sanyo C0971 Limit Switch
Limit switches are crucial because if the air never warms up then you will never get hot air through the ducts. A normal limit switch contains a sensor in the heat exchanger that determines if and when the air is warm enough for the main blower to kick in and circulate the air.
Subtle hints main limit switch needs to be replaced
- The heating and cooling system will not begin or will not stay running for any length of time
- The HVAC system is beginning to become unpredictable on more than one occasion
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