My Expobar Minore 2 is acting up... the pump seems to stop working when the pressure gets above about 7 bar. The vibration sound dampens significantly and flow stops. You can faintly hear the pump trying to work but its not really doing anything. Here's a video showing it happening when performing a back flush.
I've guessing its either the vibration pump or the solenoid valve possibly??? The OVP seems OK as I did try adjusting it and the max pump pressure moved as you'd expect.
Should I just replace the Ulka pump as a plan A?
I've guessing its either the vibration pump or the solenoid valve possibly??? The OVP seems OK as I did try adjusting it and the max pump pressure moved as you'd expect.
Should I just replace the Ulka pump as a plan A?

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