Fender Amp Powers On but No Sound: Cold Tube, Bad Cable, or Worse
A Fender amp that powers on but produces no sound has failed at one of three diagnostic layers: the signal path (cable, instrument, effects loop), the control surface (standby switch, mute switch, master volume), or a hardware fault (failed tube, blown speaker, or failed output transformer). Last updated: May 2026 The pilot light is glowing….
