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International Comfort Products T9MPD080J16B1 Limit Switch
The main reason limit switches are made is because if the warmed air is too cool then the house will never get warm enough. The limit switch contains a sensor in the heat exchanger that determines when the air is actually warm enough for the blower to be activated.
Major clues limit switch is dead
- The heating and AC system refuses to start or will not stay running longer that five minutes
- The HVAC system starts to become unpredictable often
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