It’s quite simple,  Disconnect power. Remove the temp knob by pulling forward. Remove the 2 screws on each side of the temp control shaft. Turn unit upside down and remove bottom cover. Mark and unplug the wires.  Unclamp the sensing bulb from the lower plate. It can now be lifted out the bottom.
Please note:
This action will also remove this member from your connections and send a report to the site admin.
Please allow a few minutes for this process to complete.