It works. It makes a difference, but it's small, very limited.
There is a protective sleeve outside the middle signal line of the temperature sensor on the air conditioner. The function of this protective sleeve is to prevent the temperature sensor line from aging too fast and being damaged by external forces.
Only if the external protective sleeve is damaged and the temperature sensing line is not damaged, it will not affect the normal use of the air conditioner.
It is recommended to wrap the broken area with black electrical tape or something.