Left headphone is very quiet, I dont have a problem in my ears or the sound balancing. When I keep + or - sound pressed down

[a29]

Left headphone is very quiet, I dont have a problem in my ears or the sound balancing. When I keep + or - sound pressed down

 

[a29]

MERGED QUESTION
Question from a29 : "Left headphone barely works"

Left headphone is very quiet, I dont have a problem in my ears or the sound balancing. When I keep + or - sound pressed down