I can't fathom why you would try to have it repaired without calling Axiom first.
Phone is better than email, IMO.
Tom, if it was as simple as a switch replacent. That could be done for around 20-50$.
And, since it's an 05 it's long out of warantee; most companies don't offere anywhere near the longterm out of warantee support that Ian does... So, i can see why someone would attempt to have it fixed, not having dealt/heard about the post warrantee support..
Reyucle, on my 05 model EP-600 the amp went out. i "traded in" my old/"broken" amp, and got a new one. i think my total cost was around $160 i did this in either 2011, or 2012.. not exactly sure, but it wasn't too long ago... i would guess your cost will be substantially less.
hope this helps.
please pardon any dumb typos, as im on my phone...