wrote in message
oups.com...
My wife moved here from the UK... she brought with her a unit called a
"hostess trolley" it is used to keep food warm before serving. She
loves it but it's a 220/240 volt unit.

We've tried running it with a converter and that didn't work.

We've re-wired it for a 220 volt US plug and that didn't work.

So, it must be a problem with 60 / 50 hertz.

Anybody have an idea about what else we could try to make it work in
the States?

Nope, just voltage. AFAIK there's no motors etc in those. You have 220 in
your home - it's just a matter of providing it where you need it for the
trolley. It's already in your kitchen - all those twin outlets have 220 from
hot to hot.
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N