Hi all,

As you might recall I had three alarm clocks and the PS of the bar fridge fail a few weeks ago.
I opened up the clocks and - with my level of expertise - deducted that the transformers had failed, as the bar fridge one as well.
I'm pretty sure that the old 5KW inverter had a 'surge/peak'.

My new 6KW unit is supplying 241VAC into the house (as I type this).

So I borrowed a working bar fridge PS - EXACTLY - the same as my 'gone' one and thought I'd find out why, by having both powered up at the same time and comparing them side by side on the bench.

On the working PS, the underside photo, 240VAC is present and the 'double 12VAC' pads are measuring 14 - 15VAC.
The failed PS also has 240VAC going in but ZERO on the 12VAC.
Only took me 5 minutes to work that out, super skills...

So what has actually 'gone' inside the transformer?
I understand that there are multiple copper windings [very thin]. So what has 'broken', not allowing the electricity through? A physical break, caused by what?

A new PS is only $40. As I have already bought one anyway, I thought about finding a bare transformer, just to see if it is indeed the transformer. They cost $1 each, but I don't need 5,000qty of them...


Why is it classed to only 230VAC? So ok to handle 240VAC continuously?
But would a peak of eg:247VAC take it out?