We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember NoSpam
saying something like:

Just started-up a 2.2kW dual-voltage genny after a few years of sitting
in the garage and there's no output. It's marked "Allam Generators" and
has had very little use, it was perfect when last used. The c/b hasn't
tripped and trying the switch in all 3 positions makes no difference. It
doesn't seem to have any electronics in it. Any suggestions?

The most common cause of this on a genset that's been lying unused for
ages is damp in the windings. Take off the end cover and direct a 1kW
fan heater into the end of the alternator for a few hours then try it.

Not too close with the heater, mind.
--

Dave