Ascaso Pressure Gauge or Line Fault

Ascaso machine's pressure gauge shows no pressure during brewing, but coffee still flows.

Advertisements

Possible Causes

Blocked capillary tube to gauge, Faulty pressure gauge, Disconnected gauge line, Air trapped in gauge line

How to Fix / Troubleshooting

Checks:

  • Observe coffee flow: If extraction appears normal, the issue is likely with the gauge, not brew pressure.
  • Bleed gauge line: Carefully loosen the gauge fitting slightly (with machine off and cool) to allow trapped air to escape, then retighten.
  • Inspect capillary tube: Check for kinks or blockages in the thin tube from the OPV or pump to the gauge. Clean or replace if blocked.
  • Replace gauge: If the gauge remains at zero despite confirmed pressure, replace the pressure gauge.
Advertisements

Repair Difficulty

Easy 2/5

Required Part

Brew Pressure Gauge
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements