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Pressure cannot go up to 9 bar for Expobar Leva 1 group

Is your machine connected to plumbing with a minimum pressure of 2 Bar or a reservoir?

Also check if you have an inline filter, if it’s not blocked ie free flowing and adequate supply for the machine.

Also check there are no kinks or other damage to the flexible pipe to the pump.

If everything is free flowing and you’ve made the adjustment, it sounds like you need a new pump.

Expobar New Elegance cannot heat up

As there doesn’t seem to be a problem with the group head solenoids, there could be a problem in the control box.

Check for fuses in the control box and also the transformer in the control box (if it has one).

The boiler could be controlled from the control box, so check you’re getting full voltage at the element.

Expobar New Elegance 2 group problems


– it can be switched on

– 1st group head the button cannot work (no light and no water flow at all) no movement.

– 2nd group head, the button can press and water flow is room temperature

– But the machine is not heating up

What might b the problem here ?


Is there a solid state main switch? If yes, test the output of this switch.

This may be your boiler not heating problem.


There’s a solid state relay. I tested both with a multimeter With the switch turned on.

One side shown 230V AC

Other side shown 0V DC

So could it be the solid state relay faulty ?


This could be the problem because it seems half your machine is getting power and the other half, not.

Try replacing it with a spare solid state relay (if you have one).

Expobar Ellen 2 group


Whenever I start to brew, the machine keep shutting down.

What might b the cause of it ?


Check your delivery solenoid on your group head.



Convert 3 phase to single phase of MAHLKONIG VTA6S


Is it easy to convert 3 phase grinder to single phase ?

As we only hv single phase supply here on my side.


3 phase grinder motors are wired differently to single phase. To establish which windings are being used it’s better to consult with your local electrician.