Applies to: Magnifica, Dinamica and PrimaDonna.
How to fix Descale light stays on after descaling
- Run the descale from the menu (not just by pouring descaler in), with the spout fitted and a large bowl, and let both phases finish.
- Check the water-filter setting matches whether a filter is fitted.
- If it still stays on, the flow sensor is scaled and not counting; run a second descale.
When to stop and call a repairer
Nothing dangerous here.
What it costs
| Parts | Part prices are not published by the manufacturer. Ask a parts supplier or service centre for a current price. |
|---|---|
| Service | Service prices are not published by the manufacturer. Ask an authorised service centre, and an independent espresso repairer, for a quote. |
| Worth repairing? | Yes. |
Beyond the fix
Tips and tricks
- De'Longhi: repeat the descale using only water in the tank and fill it to MAX for the last two rinses. Source: Magnifica S manual, so check your own model.manufacturer manual
- Check the black float in the water tank is present and moves freely, and that the hardness setting matches your water.manufacturer manual
- Remove the water softener filter before descaling, fill descaler to level A and water to level B, and use a container of at least 1.8 litres, as the manual says.manufacturer manual
Common mistakes
- Skipping the MAX fill on the two rinses, so the machine does not register a finished cycle.
Easily confused with
- A light that returns quickly may just be a hardness setting that is too high rather than a failed descale.
Further reading
Questions
What does Descale light stays on after descaling mean on the De'Longhi Magnifica / Dinamica?
Descale cycle not registered as complete. The machine only clears the descale reminder when it sees a full descale cycle including the rinse phase, run from the descale menu with the spout fitted. Stopping early, running it manually, or a water-filter setting that is wrong leaves the light on.
Can I fix Descale light stays on after descaling myself?
DIY difficulty: easy. Run the descale from the menu (not just by pouring descaler in), with the spout fitted and a large bowl, and let both phases finish. Check the water-filter setting matches whether a filter is fitted.
How much does it cost to fix Descale light stays on after descaling?
Part prices are not published by the manufacturer. Ask a parts supplier or service centre for a current price. Service prices are not published by the manufacturer. Ask an authorised service centre, and an independent espresso repairer, for a quote.
Is it worth repairing?
Yes.
When does Descale light stays on after descaling typically show up?
De'Longhi Magnifica / Dinamicas report Descale light stays on after descaling any. That timing is a useful clue when narrowing the cause.
Can I keep using the machine with Descale light stays on after descaling showing?
Generally yes — Descale light stays on after descaling is more of an annoyance than an emergency. Fix it when convenient; just do not let the cause sit for months.
Will Descale light stays on after descaling clear on its own?
Often, yes. The first step (run the descale from the menu (not just by pouring descaler in), with the spout fitted and a large bowl, and let both phases finish) clears a share of cases on its own. If the code comes straight back, the part is genuinely at fault.
How long does the repair take?
Fifteen to thirty minutes with basic tools, once you have the part.