Hey guys,
I have a rotary pump HX machine which makes a vibrating noise similar to vibe pump machine when brewing espresso or backflushing.
I have set my rotary pump to approximately 9 bars with pressure gauge portafilter. Rotary pump in a procon and sounds like any other rotary Ive come across, humming quietly when engaged.
Symptoms:
- vibrating brew manometer needle which erratically flickers between a range of pressures.
- vibrating noise coming from the manometer and not rotary pump.
Can anyone shed some light on this? Do I just have a bung manometer? The techie at work said it could be 100 reasons why its doing it, but cant say unless he actually sees the machine. Id rather do the work myself because I dont want to lug a 60+kg machine to work.
David.
I have a rotary pump HX machine which makes a vibrating noise similar to vibe pump machine when brewing espresso or backflushing.
I have set my rotary pump to approximately 9 bars with pressure gauge portafilter. Rotary pump in a procon and sounds like any other rotary Ive come across, humming quietly when engaged.
Symptoms:
- vibrating brew manometer needle which erratically flickers between a range of pressures.
- vibrating noise coming from the manometer and not rotary pump.
Can anyone shed some light on this? Do I just have a bung manometer? The techie at work said it could be 100 reasons why its doing it, but cant say unless he actually sees the machine. Id rather do the work myself because I dont want to lug a 60+kg machine to work.
David.


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