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Lennox XP16-060 Limit Switch
The limit switch has a sensor located in the furnace that can determine if and when the air is actually warm enough that it can be circulated throughout the house. Limit switches were created because if the warmed air is too cool then you will never get hot air through the ducts.
Symptoms critical limit switch will not live much longer
- The heating and AC system refuses to start or run longer than 10 minutes
- Your system is starting to runs uneven time after time
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