The disinfection cabinet power tube can be lit, but the disinfection cabinet key failure, generally only the key damage, there is no problem, if your home disinfection cabinet is not the key connected to the circuit board, separate replacement of the key can be, if with the circuit board, then you have to change the whole board board, because the general maintenance staff will not give a separate change of keys.
Friends with strong hands-on ability can manually repair by themselves. However, friends with general hands-on ability suggest that you find a maintenance master to help you deal with it. Maintenance button charges are generally not too expensive!