Thanks for the info...actually managed to fix it...opened it up again and was going to take the caps off and put them in the good one,i noticed that they(the caps)didn't seem fixed properly so I re-soldered them,Put new power and earth cable's on as well. All good now no overload light :clap: . And ...

Hi i have just bought a trio of amps 2x M25's and an M50. One of the M25's,i was told was instantly showing the red light on switch on,so before testing it i opened it up(its a series one) had a look at it and apart from a bit of a dodgy earth(i have resoldered now),it seemed ok someone has replaced...