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International Comfort Products T8MPT075F14A1 Limit Switch
A normal limit switch contains a sensor located in the furnace that can determine when the heated air is warm enough that it can be circulated throughout the house. Limit switches are built because if the warmed air is too cool then you will never get hot air through the ducts.
Signs limit switch will have to be replaced
- The HVAC system will not begin nor will it stay running longer that five minutes
- The whole system starts to erratically more than once
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