| Issue may be either a broken key or the key switch.
It reads like you are not a tech so trying to talk you through control panel removal, desolder, replacing the key switch, re-soldering, and replacement of the control panel would be less than easy.
You need to call a tech. He/she will just replace the key(s) or control panel PCB andor the keys as they are not a high cost items AND would be cheaper to replace than to rebuild. |