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Friedrich MW24C3G Limit Switch
This is important because if the air never warms up then the house will never get warm enough. A normal limit switch is a switch in the air handler that can determine when the heated air is warmed to a point that it can be circulated throughout the house.
Major clues of a defective limit type switch
- The heating and cooling system will not initiate or will not stay running longer that five minutes
- The system is starting to initiate and then stops from time to time
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