Error Codes

Krups coffee machine problems — most common ones

Error codes on Krups machines usually point to a specific condition: a full drip tray, an empty water tank, a stuck brew unit, or scale buildup. The most common codes are listed in our error code flashing guide — most are cleared by a power reset or a descaling cycle.

Power & Startup

Krups coffee maker won't turn on

When a Krups machine won't turn on, check the outlet, the power cord, and the switch first. Unplug it for 60 seconds and retry — this clears most temporary control-board faults. If it stays dead, the thermal fuse or power supply may need replacing; see our not turning on guide.

Water Flow & Pumping

Krups coffee maker won't brew

If no water comes out of your Krups machine, the tank may be mis-seated, there may be air in the circuit, or the pump inlet is blocked by scale. Reseat the tank, run a blank cycle to purge air, and descale if flow stays weak. See our not brewing guide.

Krups Dolce Gusto problems: no water flow

If no water comes out of your Krups machine, the tank may be mis-seated, there may be air in the circuit, or the pump inlet is blocked by scale. Reseat the tank, run a blank cycle to purge air, and descale if flow stays weak. See our water not pumping guide.

Descaling & Maintenance

How to descale a Krups coffee machine

Scale builds up inside every coffee machine and eventually blocks the boiler and pipes. Run a full descaling cycle with Krups's approved descalant every 2-3 months (or whenever the machine prompts it), then rinse with fresh water. If your machine refuses to descale, see our not heating guide.

Krups descale mode: how to run it

Scale builds up inside every coffee machine and eventually blocks the boiler and pipes. Run a full descaling cycle with Krups's approved descalant every 2-3 months (or whenever the machine prompts it), then rinse with fresh water. If your machine refuses to descale, see our not heating guide.

Grinder Problems

Krups coffee grinder not working

A Krups grinder that stops usually has beans jammed in the burrs, an empty-hopper sensor triggered, or worn burrs. Empty and brush the hopper, run a few dry beans through, and never force the motor. Detailed steps in our grinder not working guide.

Water Leaks

Krups machine leaking water

Water leaking from a Krups machine is usually a loose hose, a worn seal, or a drip tray that is not seated correctly. Dry the machine and trace where the water appears during a brew cycle — most leaks are repairable without a service visit. Full steps in our leaking water guide.