On Sat, 09 Feb 2013 17:20:35 +0000, Bob Minchin
wrote:

Wesley wrote:
Breville Lightening two slot electronic toaster, such as

http://uk.shopping.com/Breville-Lightning-PT15/info

Loud humming starts as soon as I put bread in and depress the lever and
stops when toast is done. Toast is still done properly.

It is almost certainly crumbs in the solenoid that holds the pop up
mechanism in the down position.
Open it up and clean it out.

My brother in law had to throw theirs out because it started humming
in another way, for reasons best known to itself their cat climbed on
to it and crapped in a slot.
First they knew about it was the funny smell at breakfast time
followed a few seconds later by hot cat turd and toast pinging up.
Almost makes toast toppers or pop tarts look good.

G.Harman