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Mitsubishi MSZ-GE09NA Limit Switch
A normal limit switch is a switch in the air handler that senses, or governs, when the air is actually warm enough for the blower to be activated. One big reason why limit switches are designed that way is because if the air is not warm enough then you will never get hot air through the ducts.
What signals that my limit switch is almost dead?
- The heating and AC system will not begin or run well longer that five minutes
- The system starts to runs spotty time after time
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