On 13 May 2021 17:00:33 +0100 (BST), Theo
wrote:

T i m wrote:
I still have one of the game console PSUs that I bought after a 'heads
up' from someone here, and a stripped out PC PSU but on that the 12V
is only 16A, and neither will fit under the printer and whilst I
thought it being there wasn't 'a good idea', it actually helps keep
all the power cables short and the PSU within the constrains of the
printer itself without getting in the way.

Probably me.

It probably was. ;-)

The open frame ones are on ebay:
https://www.ebay.co.uk/itm/164357507368

Yeah, I was looking at them earlier and on Amazon (for Prime delivery)
but as it did manage to finish the print I have a bit more time to
seek a replacement.

You can also get them in power brick form:
https://www.ebay.co.uk/itm/293813499442

But in 12V form you mean?

although who knows what the quality is like.

And that's the thing. I've taken the original one out and it's top off
and it looks like one of the caps has blown (top right of the group of
4 x 1000u /16V at the bottom):

https://ibb.co/VHYxc88

You can also see that choke has been running pretty hot as the shellac
is dark.

I think there was a fan in there (you can see the remains of the gloop
on the lower side (on the pic) of the txfmr) but it failed and we took
it out as the PSU ran cold (originally).

When I took it out earlier it was quite hot.

Where it is on the printer is open on all 4 sides and not in any way
enclosed.

I wonder if a set of new caps and maybe add a second PSU to split the
load might be a good repair / upgrade?

Cheers, T i m

p.s. From a quick Google it comes up as a 5V x 40A model but I'm
guessing that's something they change in the factory (slightly
different bits but the same mechanics / circuit)?