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Payne PA10JA036000AA Limit Switch
One big reason why limit switches are designed that way is due to the fact that if the air inside the furnace is too cool the you will lose all the heat as the air flows through the ducts. A normal limit switch is a type of sensor switch in the air handler that can determine when the air is warmed to a point for the blower to be activated.
Clues to watch for to know limit switch needs replacing
- The HVAC system is beginning to act differently on more than one occasion
- The HVAC system is unable to start or continue to run longer that five minutes
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