The descale light doesn't turn off. There could be two reasons why the descaling light isn't going away. One reason is an insufficient descaling cycle caused by an improper descaling solution. Try another solution to see if that's a problem. Otherwise, press the 8oz and 12oz buttons for 5 seconds, and the light will go away.. 👇 The following descaling steps apply to Keurig K-Supreme K910 and K-Supreme Plus K920 Brewers. Step 1: Get Ready Before we start, make sure your Keurig Supreme (Plus). you can ensure a trouble-free and delightful coffee experience with your Keurig K-Supreme or K-Supreme Plus. How Often Should You Descale Your Keurig Supreme (Plus)?
Then, lift the lid of the reservoirs so that the mixed solution can go inside the Keurig k-supreme plus machine. Time For Descaling. The vinegar solution should stay in the machine for 30 minutes but don't let it be there for 3 hours or more. It will also change the taste. So avoid it.. The steps to descale Keurig K Supreme Plus are as follows: 1. Begin by emptying the water reservoir and removing the water filter, if there is one. 2. Mix a solution of descaling liquid or vinegar with water in a 1:1 ratio. You'll need enough to fill the water reservoir. 3. Pour the descaling solution into the water reservoir.