Fault or blockage · Keurig K-Duo
Keurig K-Duo: All the buttons blinking at the same time
Listed under ‘Brewer will not brew’: a fault Keurig does not give a home fix for.
- Which light
- Several lights or symbols at once
- Colour
- Colour not named by the maker
- Steady or flashing
- Flashing or blinking
What Keurig says to do
- Contact Keurig Customer Service.
If that does not fix it: Contact Keurig Customer Service (the guide’s wording).
From K-Duo Use & Care Guide: Before You Brew, cleansing brews, Brewer Features, Auto Brew, Caring for your carafe and Troubleshooting. This is the K-Duo’s pattern; another Keurig machine may use the same light for something else — check the manual for your model.
Other Keurig K-Duo lights
Fault or blockage on other machines
The same need shows up as a different light on each machine — which is why a light cannot be read without the machine.
Sources
Every line on this page comes from Keurig’s own documents, read on the date shown. Nothing is taken from third-party manual sites.
- Keurig: K-Duo Use & Care Guide: Before You Brew, cleansing brews, Brewer Features, Auto Brew, Caring for your carafe and Troubleshooting — K-Duo single serve and carafe coffee maker (US guide). dam.keurig.com Checked 2026-09-29.