This whole thing is a bit puzzling. This has been going on
for a while, no? What are the circumstances where the power is still
out for so long
that you need to run this generator before the tech
can come back with the breaker?

Whether it's safe or not without the breaker would depend entirely on
how it's wired and which breaker we're talking about.

Any electrician can replace a breaker. He just needs to have the
right part, which might mean going to a Kohler
dealer. How long did the tech say it would take to come
back with the part?- Hide quoted text -

- Show quoted text -

The power isn't out. The generator failed to do its 20 minute per
week exercise. It conked out after only 90 seconds. The tech
diagnosed bad breaker and did a "bypass" fix. The company that sold/
services the unit is notoriously slow in getting parts. They don't
keep any inventory and I just want to know if the proper fix can be
handled by a general electrician. I don't mind paying someone else,
even though the service is covered by a service contract. Just want
everything to be done right.

The breaker itself is rectangular. The on/off switch has the number
"50" written on it. Near the switch it says "10 kA 120/240V."
Thanks, Jack