Water · Keurig K-Supreme and K-Supreme Plus
Keurig K-Supreme and K-Supreme Plus: ADD WATER light on
The reservoir has run out. The K-Supreme guides mention this light only in the descaling steps, where it means the descaling solution has all gone through and it is time for the fresh-water rinses.
- Which light
- Water tank symbol
- Colour
- Colour not named by the maker
- Steady or flashing
- Steady
What Keurig says to do
- Empty and rinse the reservoir and refill it to the MAX line with fresh water.
- If you are descaling, carry on with the fresh-water rinses until the DESCALE notification turns off.
From K-Supreme Use & Care Guide: Before You Brew, Brewer Features, Regular Maintenance, Descaling and Troubleshooting and K-Supreme Plus Use & Care Guide: Before You Brew, Brewer Features, Descaling and Troubleshooting. This is the K-Supreme and K-Supreme Plus’s pattern; another Keurig machine may use the same light for something else — check the manual for your model.
Other Keurig K-Supreme and K-Supreme Plus lights
Water 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-Supreme Use & Care Guide: Before You Brew, Brewer Features, Regular Maintenance, Descaling and Troubleshooting — K-Supreme single serve coffee maker (US guide). dam.keurig.com Checked 2026-09-29.
- Keurig: K-Supreme Plus Use & Care Guide: Before You Brew, Brewer Features, Descaling and Troubleshooting — K-Supreme Plus single serve coffee maker (US guide). dam.keurig.com Checked 2026-09-29.