On 2017/12/12 8:25 AM, James Wilkinson Sword wrote:
On Tue, 12 Dec 2017 16:12:51 -0000, John Robertson
wrote:

On 2017/12/12 6:14 AM, James Wilkinson Sword wrote:
On Tue, 12 Dec 2017 03:49:55 -0000, rickman wrote:

James Wilkinson Sword wrote on 12/11/2017 11:50 AM:
On Mon, 11 Dec 2017 04:07:43 -0000, Mary-Jane Rottencrotch
wrote:

On 2007-01-19 12:13, Peter ****er wrote:
Is it really true that turning on a microwave with nothing in it
will
break it?

Derp.

It was a sensible question.Â* This could be done by accident.

I interviewed with a place once that was doing something with testing
microwave ovens.Â* They ran them all the time with nothing in them.
I had
always read that you should not operate them with nothing to absorb the
energy and mentioned that.Â* I got a strange look from the guy.
Obviously
the energy that would be absorbed is within the limits of what the
ovens
were designed to get rid of.

It seems nothing happens, well no fire or explosion anyway.Â* He never
said if it still worked afterwards:
https://youtu.be/AsaW5xnOkCA


Why don't you simply put a load meter on the microwave and try running
it empty or with a cup of water. I expect that with no load the unit
will simply not draw as much current.

Do regular ovens 'care' if something is in them or not? Why should a
microwave?

John :-#(#

A regular oven switches off the heater once the inside is at 200C or
whatever you set it to.

A microwave oven works completely differently.Â* 900W (or so) of
microwave energy continuously enters the cavity and should be absorbed
by the food.Â* If it isn't, where does that microwave energy go?


When in doubt find a real answer:

http://products.geappliances.com/app...ontentId=17934

So, it seems microwaves will run up to five minutes when empty, but
after that will overheat various parts. And probably die.

Learn something every day!

John :-#)#