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International Comfort Products T8MPV100J20C1 Limit Switch
The limit switch is a switch in the heat exchanger that can determine when the air is warm enough for the air to begin normal home circulation. The main reason limit switches are made is because if the air is too cool inside the furnace to begin with, then you will never get hot air through the ducts.
Clues limit switch has to be replaced
- The heating and cooling system refuses to start or will not stay running even though max temp has not been reached
- The whole system is starting to go through the startup sequence but stops quickly frequently
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