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International Comfort Products H8DNL075F16B1 Limit Switch
The limit switch is a type of sensor switch in the air handler that senses, or governs, if and when the air is actually warm enough for the blower to be activated. Limit switches are crucial because if the air is too cool inside the furnace to begin with, then the house will never get warm enough.
Key signs of an ailing main limit switch
- The whole system starts to stop suddenly time after time
- The HVAC system will not start nor will it stay running like it is supposed to
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