ashton GA100 head bass control & reverb wont work

[scottg2219]

I have a cheap Gaa100 ashton amp head 100w transistor amp which works except the bass control does not work & the reverb works but gives a buzzing kinda noize when turned up on full what could be the possible problems. Could it be a faulty pot control on the amp all other funtions work fine. :grr

[J M Fahey]

Yes, if just the bass control does not work, it's highly possible that either the pot is damaged or even that its solder is cracked.
Start by lightly resoldering its pads.