yeah good morning YouTube been taking a look at this old solenoid block from the Breville
barista Express this one uses ol AB solenoids and I've seen a lot of these listed on eBay I think
the two solenoid coils are actually identical and then it's just the body of the valve this
they called their 2/3 way because it's got two outlets one over here one over here and then
this is just the regular on/off valve but the solenoid coils I believe are all the same here
so these come out around 680 ohms on the coils and they're listed at 10.5 volt amps at $120
node block that I just got and these a different brand of solenoid it's see me CEM e they're both
Italian companies and I'll put links to the web pages in the video description until it settles
down there 512 ohms so these are listed at 14 volt amps and if you work out the current that's
about a hundred ten milli amps on this one and about 80 milliamps on this one and I figured we
could check that out so I made up a little tester here's my cliff quick test and I put a couple of
wires in the output there so I have that plugged into my bench power supply and then I made up a
little wiring harness some Spade lugs their power applied to these two pins and then the horizontal
pin here is ground and what I'm going to do is I'll just close the cover on the quick test and
listen here so you just hear it real solid click get about eight and a half watts and 110 milliamps
so that checks out so now I'm hooked up to the other side here I'll close the cliff quick test
I'll get the same 110 eight and a half watts so the hundred and ten times 120 volts gives you the
14 volt amps and then eight and a half watts is the actual real power dissipation there in case
you're wondering so here's the old solenoid with the ole AB valves and here we go I'll
shut the quick test and there's the clicking we get about 6.7 watts and 80 milliamps so
this one checks out here we go I've moved the test leads over to the 2/3 way valve and listen to this
so interesting it's still the same power 80 milliamps 6.7 6.8 watts but that one is
definitely buzzing I think this one here is the problem I'll put an eBay search link for
some of these valves and they are available out of Europe this 2/3 way valve is probably about
$50 aus by the time you get it shipped over here the newer seamy valves don't appear to
be available online I can only find them in this completed package but at some point I
want to take this apart and see if I can figure out what's going on is it the electrical coil
here or is there something wrong inside the valve that's messed up so I found
some diagrams online I'll try to cut those into the video to show how this valve works
looks like maybe Breville has changed from the old lab solenoids to these semi solenoids and these
seem to be a little bit higher current which means there's going to be more field in here
which will operate or actuate the valves more solidly so maybe they've been having problems
with these I've heard a lot of reports of people having to replace these so maybe they went to a
little stronger valve now the one difference I notice so on the new solenoid bla this is a
two bar rated solenoid and this one is 17 bar on the old solenoid block so both of these are
rated to 30 psi they're both rated at the higher pressure and it was this one that failed which
is the three-way valve on here the 2/3 way valve is the 2 bar version couple of differences I see
different brand higher power solenoids but the older one has higher pressure solenoids they're
both high pressure but they're lower current and lower actuated force it looks like Breville had
been using these in a lot of different machines you look on eBay and they list the 860 the 870
they have all of these listings for these olabs solenoids and nothing for the seamy
I need to get this shut off and next step is we'll go this back into the Machine and see
if it works so yeah if you have any insight if you've replaced your solenoids and noted
what brand they were go ahead and post up in the comment section down below so I'll
put the other repair videos over here on the left side and as always thanks for watching
you