Panasonic Underfill / Incorrect Brew Volume

Carafe does not fill to the expected level; brew volume is too low.

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Possible Causes

User-selected small cup setting, Scale restricting flow, Airlock in pump, Faulty flow meter (if equipped)

How to Fix / Troubleshooting

Safety first: Unplug before cleaning; normal operation is safe.

  • Check settings: Confirm the brew size is set correctly on the control panel.
  • Measure water: Fill the tank with a measured amount of water and compare to the volume brewed to determine the deficit.
  • Descale: Run a descaling cycle to restore full flow.
  • Repeat test: If underfilling persists significantly, the flow meter or control logic may be faulty and require service.
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Repair Difficulty

Easy 2/5

Required Part

Flow Meter
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