Power plug error icon on my Krups EA826E10!

Hello everyone,

I have a strange issue with my Krups coffee machine. It shows the power plug error icon every time I turn it on.

After checking online, I found that this problem is often caused by the NTC sensor. When I inspected mine, I saw that it had completely come loose from the solder, so I resoldered it, reassembled everything, and reset the device.

Now, when I turn it on, it starts for a couple of seconds, tries to run the self-cleaning and heating cycle, and I can hear a high-pitched motor sound — but not the usual lower one. Then it goes back to showing the plug icon again.

Has anyone experienced this before or knows what could be causing it? Any help would be appreciated!