We had a fairly new Keurig K-Supreme coffee maker.
The first time the descale light illuminated I tried using white vinegar to do the job. It must have done some good, but it didn’t last as long as expected. So this time when the light came on I ordered the 3-Month Maintenance Kit from Amazon. Yesterday I did the descaling.
(Side note, the directions listed on the box on how to do this say to follow the instructions on the bottle, but there are no instructions on the bottle.)
After following the instructions I found on keurig.com I successfully ran the descaling procedure. Only trouble was that the brewer failed to restart afterwards. A search online said that I might have over heated the thermostat and I should wait a couple of hours and try again. After 3 hours the brewer would still not turn.
I then found a YouTube video on how reset it. After spending twenty minutes opening up my relatively new brewer I found the thermostat and no amount poking with a bent paperclip would reset it. I ohmed it out and it read as infinite, so I had no choice but to go out and spend $150 on a newer brewer.
Rest assured that next time the Descale light illuminates I going back to white vinegar. It may not last as long, but at least it won’t fry the thermostat.
I hope…