We need to disconnect the external switch mechanism from the temp sensor assembly. They are connected with a hinge (clear plastic to black plastic) in 4 points.(blue squares on image)

Carefully dissemble the clear plastic hinge from the temp sensor. Easy soft plastic to push away

With thin tweezers or a toothpick disconnect RED and Black cables from the thermal sensor. They have thin connectors so be gentle to not snap them.

The black one has a side gap to push the spring connector out easier. Red does too, but it is but hidden and hard to press. Bend paper clip did the trick for me