Noidle22,/ Dimal,
Thanks for your advice,most appreciative.
cheers,
mick.
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Bezzera two group B2000,information needed,please...one and all.
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Nope, it's what Bezzera recommend doing when the combination valve inevitably breaks down in one way or another.
Usually best to remove the old anti vac fitting and plug it in case the o-ring completely fails and causes a leak.
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Hello again,Wanted to pass some of you expert coffee technicians another modification I've fitted to this Bezzera machine.
I noticed the existing combination pressure relief/ anti/ vacuum fitting has constantly failed to release a vacuum during heating,.
There was an additional capped outlet on the top of the boiler,this I fitted the female adapter to allow a short anti vacuum valve to be placed.
Seems to be doing a good job of releasing the vacuum during heating now,is there any precautions I need to be aware of when continuing to this alternative.
Cheers,Mick..
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Good job with the project. Hope you get a tasty coffee out of it.
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Bezzera eventually!
Hello again,
It's been some time since I've had any action with this project,finally acquired a RJ40 water level controller (from dead Boema 2 group) in excellent order for $50 , more than I was planning however,this machine was worth it.
Have given up with the volumetric touch pads (for the time being) so I've fitted rocker manual brew switches for individual group activation as nothing was provided for any manual override.
Well good news is the Bezzera is now operating,manually for the present however,volumetric eventually.
One touch pad PCB didn't appreciate a small tickle of 240vac (2 resisters & 3 diodes RIP).
One AC 24volt supply still to be sourced for eventual installation will sort that challenge.
Thanks for the support and encouragement culminating in one operational and very reasonable costed Bezzera B2000 2 group espresso machine.
cheers,
Mick.
PS: Thanks matt & Dismal,have had several extremely nice brews for this great machine!
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Hello All,
Things are on hold for the time being,the water level controller I had secured (still fitted into the 2 group Rancilio) intending to use it in the Bezzera.
I just cannot put a lovely old girl/man machine out of commission just for the sake of one part,just wouldn't be right!
I'll see if I can move it on (complete...but for two elements),to a new owner in a maximum 10 amp situation.
On the hunt again for a used water level controller,anybody able to point me in a particularly correct direction?
Hear from me soon.
Cheer's,
Mick.
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Hello all,
Wonderful news,really thought 24 volts DC was the place to begin,see what progress from then,that's what the numbered spade bits were marked as 1,2 &3 prefixed with T (for transformer) meant.
I haven't touched things as yet,attending to domestic chores firstly!
Mind you,I might get things connected and find the control pads both dead yet!
Must think positively,again!
Thank you to brettreaby & Beanz.
Cheers,
Mick.
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2 of these relays would require. 60mA current at 24V. so it must have a transformer somewhere to supply the 1.3w
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MZP A 002 48 10
10 A 250VAC contact
23.5VDC coil
Data https://www.gme.cz/img/cache/doc/634...atasheet-1.pdf
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Hello again,
See how I go tomorrow,bit late now,thanks again for the support.
cheers,
Mick.
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the markings on the relay are not quite good enough to read..... can you get a clearer shot?
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... handy clip-in relay. Wish the common fail relays were so easy to remove and replace on PCBs now.
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Hi Mick, that's a Gicar p/n 400608 Bezzera PCB 240VAC s/p in on the left of the image. The other side sports the five actuators that the membrane will touch when pressed.
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Seems that there may be some components mounted from the back of the board too mate.
Should probably check that out first before powering up...
Mal.
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