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Lennox XC14-036 Limit Switch
Limit switches exist because if the air never warms up then you will never get hot air through the ducts. The limit switch has a sensor in the heat exchanger that decides when the air is actually warm enough for the air to begin normal home circulation.
Easy warnings critical limit switch is in dire straights
- The heating and cooling system will not begin or run well longer that five minutes
- The HVAC system is starting to become unpredictable frequently
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