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LG LP1213GXR Limit Switch
One big reason why limit switches are designed that way is because if the air is not warm enough then you will never get hot air through the ducts. The limit switch has a sensor located in the furnace that decides if and when the air is warmed to a point so that it may be pushed through the ducts and out the vents.
What warnings should I watch out for to know if my critical limit switch is crapping out?
- System is unable to start or run well like it should
- Your system is starting to run inconsistently on more than one occasion
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