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Fujitsu ASU12RMLQ Limit Switch
This is important because if the air is too cool inside the furnace to begin with, the you will lose all the heat as the air flows through the ducts. The limit switch is a switch in the heat exchanger that can determine when the heated air is actually warm enough to activate the main blower.
Some clues of a declining critical limit switch
- The heating and AC system will not even start or run well longer than a minute
- The system starts to behave erratically from time to time
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Before buying or purchasing any Fujitsu ASU12RMLQ part do your best and cross-check the correct model as well as make a visual comparison so that you are positive that the right limit switch is the one being purchased. You do not have to install it yourself. Look for a professional in your area to pay to install it for you.
Feel free to download your manual for help.
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