Your machine has a safety sensor for the water reservoir. If the tank isn’t seated perfectly flush, or if the magnetic sensor is dirty, the machine refuses to power on. It’s a safety feature to prevent it from burning out when dry. Clean the two little metal prongs inside the machine where the tank meets it. Use a dry Q-tip or a toothpick.
Hard water is the enemy of all electronics. Over time, mineral buildup can insulate the heating element, causing the machine to overheat and shut down as a fail-safe. The cure is a simple descaling cycle using white vinegar or a descaling solution. If you’ve never descaled your machine, it’s not being dramatic; it’s staging a protest. Fun fact: In 2014, a man named John Sylvan, one of Keurig’s inventors, said he regretted inventing the machine because of the plastic waste. Talk about a morning-after regret.
