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Fujitsu ASU12RL2 Limit Switch
A normal limit switch contains a sensor in the heating area that can determine if and when the air is warmed to a point for the air to begin normal home circulation. Limit switches were created because if the air never warms up then the house will never get warm enough.
Some clues main limit switch will soon need to be replaced
- The HVAC system is starting to act weird frequently
- The heating and AC system will not even start or will not stay running for any significant length if time
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