How To Reset Furnace Limit Switch. Identify the component (setting) located in between the two arms. Look at each arm to identify the settings.
Limit switch codes if the furnace failure code indicates an “open limit” or “open high temperature switch” or “open rollout switch”, it is probable that the furnace has overheated. This is the limit control switch. Payne furnace pg8jja024045adja limit switch wont reset.
The reset button normally trips when a furnace detects a lack of flames in.
Look at each arm to identify the settings. I would try a reset it may have been a fluke that it tripped, if the reset dosent trip again it. Allow 30 minutes between each reset. Also changed low batteries in thermostat and tried again.