This amazing Aqara Thermostat E1 is, in my opinion, one of the best but also one of the worst thermostats. It works with some missing features, but it breaks after 2 years of use. Because of temperature differences, the plastic components become more brittle. The screw holders get more brittle and break.

I tried to fix them with glue, but that means it cannot be easily disassembled anymore. The thermostat function still works, but the button is always pressed because the battery springs put too much pressure against the three screws.

broken screw issue

screw glued

Extra glue near the battery compartment