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LG ARNU123SEL2 Limit Switch
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. The limit switch is a switch in the heating area that makes the determination when the air is actually warm enough that it can be circulated throughout the house.
How can I tell if my main limit switch has a need to be replaced?
- The LG system starts to go through the startup sequence but stops quickly more often than not
- The HVAC system refuses to start or run for any length of time
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Before buying or ordering a replacement limit switch for your LG ARNU123SEL2 do your best and make sure of the correct model and also make a visual inspection in order to be sure the right limit switch is the one being purchased. HVAC professionals can be expensive so you may want to ask around to acquire the best rate if money is of great importance to you.
Feel free to download your manual for help.
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