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LG LS-J0910HL Limit Switch
A normal limit switch is a type of sensor switch located in the furnace that decides when the air is actually warm enough to activate the main blower. This is important because if the air is too cool inside the furnace to begin with, the you will lose heat in the ducts and the vents will just blow cool air.
Key indicators that my chief limit switch really needs to be replaced?
- The heating and AC system will not begin or run well even though max temp has not been reached
- The whole system is beginning to behave differently from time to time
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