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DeLonghi PAC600T Limit Switch
A normal limit switch has a sensor in the air handler that determines when the air is warmed to a point that it can be circulated throughout the house. The main reason limit switches are made is because if the air never warms up the you will lose heat in the ducts and the vents will just blow cool air.
Important hints main limit switch should be replaced
- The HVAC system will not start or run well for any length of time
- The HVAC system is beginning to run erratically repeatedly
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