Assistance sorely needed from Azkoyen experts, these are such great machines but I'm just stuck at the moment.
I have a two group Azkoyen Vienna that's working great except for low temperature at the groups. I can only get a max of about 88C during extraction.
I've worked on Azkoyens in the past and there's usually been a small potentiometer on the control board that you adjust to change the boiler pressure. For the life of me I can't see any sort of adjustment on either of the circuit boards in this machine. I've attached some photos.
The white connector on the bottom left of the board with the thin black wires is the temperature sensor in the boiler. The front two pins are connected together by a jumper wire, is there perhaps something to be done with it to make an adjustment? Or perhaps is there a resistor that should be changed somewhere for a lower or higher value to give a different response from the sensor, thus a change in boiler pressure?
I thought it may have an adjustment that can be made through the control panel as the machine has a screen, couldn't find anything related to this in the setup manual but maybe there's a hidden service menu?
The other photo shows a small red flashing LED that's always flashing when the machine is powered on. This does not change in intensity or frequency when the elements are on or not. Can't see any sort of adjustment around it either.
The circuit board to the left is power supply to the machine components, there is nothing to adjust on there at all that I can see.
If anyone has worked on one of these before or can advise what I can try I'd appreciate it.

I have a two group Azkoyen Vienna that's working great except for low temperature at the groups. I can only get a max of about 88C during extraction.
I've worked on Azkoyens in the past and there's usually been a small potentiometer on the control board that you adjust to change the boiler pressure. For the life of me I can't see any sort of adjustment on either of the circuit boards in this machine. I've attached some photos.
The white connector on the bottom left of the board with the thin black wires is the temperature sensor in the boiler. The front two pins are connected together by a jumper wire, is there perhaps something to be done with it to make an adjustment? Or perhaps is there a resistor that should be changed somewhere for a lower or higher value to give a different response from the sensor, thus a change in boiler pressure?
I thought it may have an adjustment that can be made through the control panel as the machine has a screen, couldn't find anything related to this in the setup manual but maybe there's a hidden service menu?
The other photo shows a small red flashing LED that's always flashing when the machine is powered on. This does not change in intensity or frequency when the elements are on or not. Can't see any sort of adjustment around it either.
The circuit board to the left is power supply to the machine components, there is nothing to adjust on there at all that I can see.
If anyone has worked on one of these before or can advise what I can try I'd appreciate it.

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