Hi all,

I am hoping that someone can shed a little bit of light on this issue that I am having on my Iberital IB7 Compact 2 group machine.
The auto-fill has stopped working so it's not filling from the water mains supply and there is no pressure in the water going to the group heads, it's just a very low flow. The boiler heats up as normal for the steam function, I have tried changing the inlet solenoid valve but it didn't make any difference. My next thought was that maybe it's an issue with the pump.

I have tried getting companies out to fix the issue but they are all snowed under with call-outs to businesses, and most of them won't attend a domestic premises to fix a commercial machine, so I am pretty much in a catch 22.

I sincerely appreciate any advice or assistance that any of you kind people can offer.

Ian

If you remove and ground the wire connected to the autofill probe does the pump run and fill the boiler?

Does the pump ever run? If you disconnect the other end of the hose connecting the pump to the machine, point it into a bucket or sink and turn on the pump does water come out?

Ok it is a commercial 2 group machine right?
then the filling of the boiler and no water from the grouphead are 2 different issues,

for the autofill as suggested:
remove the water level probe wire, make sure that you are not grounding yourself to the ground of the machine so the circuit of the autofill is still closed,
in doing so, withing few seconds you should have power to both the pump and the inlet 2-way solenoid valve.
If AND you are comfortable trace the pin of the control box related to the 2 components above and see if there is passage of current through/out of them
connecting the meter to the neutral or even the ground anywhere on the grounded part of the machine.

Now in regards of the groupheads:

I would start with cutting power to the heating element (if you have a 0-I-II switch style go to I) other wise from the pressurestat wire, safety tstat or HE itself.

starting from the basics the showerscreens are cleaned?
when you are brewing or starting a brewing, is voltage reaching the pump and the grouphead solenoids (
Is the water line open and the hose not kinked pinched etc etc?
is water reaching the machine properly?
Your issue is in the heating exchanger circuit
what is the static pressure rereading on the gauge (water pressure) while idling?
2-4 bar range?
if so when you are starting a brewing, where is the needle going up to?
is the water source (example the softener) in need of replacement and is partially clogging the circuit?

I'm not personally familiar with your machine but,
if you have voltage reaching the mentioned parts
then do you have some kind of a gigluer and filter in the groups that might be clogged?
do you have a one way valve that might not be opening correctly?

ira wrote:If you remove and ground the wire connected to the autofill probe does the pump run and fill the boiler?

Does the pump ever run? If you disconnect the other end of the hose connecting the pump to the machine, point it into a bucket or sink and turn on the pump does water come out?

Hi Ira,
Sincere apologies for the delay in responding, life stuff getting in the way. Very many thanks for taking the time to read and reply to my dilemma, it's truly appreciated indeed.

With regards to your questions, I am not one hundred percent sure which is the auto-fill probe and connector, I will try and get a detailed diagram of the inside of my machine. With regards to the pump, it was working absolutely fine and then when I went to switch the machine on the next day it would not operate at all, no auto-fill or no pressure in the water to the group heads, just a trickle of water at best. The water pressure gauge is reading at approximately 2-3 Bar coming in from the water mains supply, which leads me to think that the pump has given up and failed.

It's just so frustrating that no companies are prepared to come and look at it because it is being used in a domestic environment and not a business one.

Very many thanks again and best wishes.
Ian

stefano65 wrote:Ok it is a commercial 2 group machine right?
then the filling of the boiler and no water from the grouphead are 2 different issues,

for the autofill as suggested:
remove the water level probe wire, make sure that you are not grounding yourself to the ground of the machine so the circuit of the autofill is still closed,
in doing so, withing few seconds you should have power to both the pump and the inlet 2-way solenoid valve.
If AND you are comfortable trace the pin of the control box related to the 2 components above and see if there is passage of current through/out of them
connecting the meter to the neutral or even the ground anywhere on the grounded part of the machine.

Now in regards of the groupheads:

I would start with cutting power to the heating element (if you have a 0-I-II switch style go to I) other wise from the pressurestat wire, safety tstat or HE itself.

starting from the basics the showerscreens are cleaned?
when you are brewing or starting a brewing, is voltage reaching the pump and the grouphead solenoids (
Is the water line open and the hose not kinked pinched etc etc?
is water reaching the machine properly?
Your issue is in the heating exchanger circuit
what is the static pressure rereading on the gauge (water pressure) while idling?
2-4 bar range?
if so when you are starting a brewing, where is the needle going up to?
is the water source (example the softener) in need of replacement and is partially clogging the circuit?

I'm not personally familiar with your machine but,
if you have voltage reaching the mentioned parts
then do you have some kind of a gigluer and filter in the groups that might be clogged?
do you have a one way valve that might not be opening correctly?

Hi Stefano65,

Sincere apologies for the delay in responding, life stuff getting in the way. Also sincere thanks for taking the time to read and reply to my dilemma, it's truly appreciated indeed.

I will try and answer your questions the best I can and with as much details as possible.

The machine is a Iberital IB7 Compact 2 group commercial espresso machine.

With regards to the auto-fill, it was working absolutely fine and then the next day I switched the machine on and nothing, no auto-fill function at all. Unfortunately I am not familiar with every part of the machine and don't have a voltage meter/multi-meter readily available, (I will purchase one though) I am going to have to try and get a detailed diagram of the inside of my machine to work out which components and probes are relating to the ones that you and Ira mention.

Now for the water flow to the groupheads.

Shower screens are cleaned on a daily basis after each use.
Voltage getting to the pump and grouphead solonoids (confident that there is voltage to both, but will double chech with voltage meter/ multi-meter.
Water line is fully open and nose is not pinched or kinked.
Water is definitely reaching the machine properly.
Water pressure when idling is approximately 2-3 Bar
When brewing the needle stays at around the 2-3 Bar pressure range, water does flow through the group heads but with no pressure behind it, just a slow flow.
Water softener/filter was changed for a new one four days ago.

I truly believe that the pump is the main issue to be honest, I am so tempted to purchase a new one and fit it and see if it works.

Thank you so much again for your time and your help with this, it truly is appreciated indeed.

Best wishes
Ian