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EdgeStar AP12000HS Limit Switch
The limit switch is a switch in the heating area that makes the determination when the air is warm enough that it can be circulated throughout the house. Limit switches exist because if the air is not warm enough the you will lose all the heat as the air flows through the ducts.
What are the signs that the limit switch is not working properly?
- The heating and cooling system will not initiate nor will it stay running as it should
- The system is beginning to run inconsistently more than once
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