On Melitta Purista F230, the exact state “coffee does not flow with a filled tank” is documented by Melitta; preserve its display, timing and operating condition before troubleshooting. Check the brew-unit lock position; if its drive is misaligned, use only the documented button sequence before reinserting it. This state alone does not prove an internal replaceable part has failed. Keep codes, maintenance reminders, settings and mechanical symptoms as separate decisions. Switch off and unplug before accessible cleaning. Keep water away from powered parts, never open an internal electrical panel and stop for heat, smoke, exposed wiring or a persistent electrical smell.
Models covered
- Melitta Purista F230-101 · F230-101
- Melitta Purista and Avanza F230-103 · F230-103
Safety first
- Switch off and unplug before accessible cleaning. Keep water away from powered parts, never open an internal electrical panel and stop for heat, smoke, exposed wiring or a persistent electrical smell.
What the symptom may indicate
Checks in the right order
- Confirm the exact display or symptom
Confirm that the exact observed state is “coffee does not flow with a filled tank”.
- Apply the manufacturer check
Check the brew-unit lock position; if its drive is misaligned, use only the documented button sequence before reinserting it.
- Use the result
If the documented check clears the state, monitor one normal cycle. If it returns, keep the exact model, display and timing and contact the manufacturer instead of repeating resets or ordering an unverified part.
Stop and get qualified help when
- Switch off and unplug before accessible cleaning. Keep water away from powered parts, never open an internal electrical panel and stop for heat, smoke, exposed wiring or a persistent electrical smell.
Next step
Repair, replace a part, or arrange a diagnosis?
Use the checks and stop conditions above to choose a cautious next step. A symptom alone never proves that the appliance has failed.
Resolve it without buying anything
Complete the 3 user-accessible checks in order. If normal operation returns and no warning sign remains, no replacement is indicated.
Replace only the confirmed part
If the checks isolate a worn or blocked component, match its complete reference to the exact appliance model before ordering.
This guide does not identify a replacement part. Do not order a generic component from the symptom alone.
Arrange a diagnosis before replacing the appliance
Stop at any warning sign listed above. A qualified diagnosis should confirm that repair is unsafe, unavailable or uneconomical before an appliance replacement is considered.
Sources used
- Melitta — Melitta's official manual or support page documents “coffee does not flow with a filled tank” and the bounded user action retained here.
- Melitta — Melitta's official manual or support page documents “coffee does not flow with a filled tank” and the bounded user action retained here.
Last checked: 30 August 2026