Elstat Ems 25 Advanced Manual [verified] -

The unit shuts off the compressor and activates the evaporator fan to remove frost, preventing ice buildup.

To access password-protected menus (like the "PS" parameter settings), users must perform a specific sequence of button presses—often referred to by technicians as the "key dance" (e.g., Snowflake, Up, Down, Water Drops). Elstat Ems 25 Advanced Manual

For advanced accuracy: