Fender Mustang I V2 noisy

chrisoldroyd

Just taken delivery of a mustang I v2 today and it’s making a strange high pitched whistle and hum before I plug anything in. Soon as I connect a guitar the high pitched sound gets much louder as does the hum and it’s unusable. While I play it sounds ok as it drowns out the noise but as soon as I stop it’s really uncomfortable.

I have switched guitars, cables and updated the firmware to 2.2 but no difference. Have I got a dud?

Tried all different presets too and the noise gets quieter on some but it’s still there and very noticeable. I have. Cheap Epiphone amp and that’s silent while I’m not playing so this can’t be right.

any ideas?

Thanks
Chris

ICBM

If it was bought from a shop or Ebay, send it back.

DJH83004

Agree with IC, they are virtually impossible to repair (switch mode power supply, SMT and DSP chip) - well for me anyway, and could be any one of them, so hopefully you can get a replacement or a refund. 

chrisoldroyd

Well after a bit more testing it appears that my air conditioning compressor is causing the noise. When it’s off the amp is perfect, as soon as it starts up the noise and interference on the amp returns........