The Error Code Daily Team

F21 on a Keurig coffee maker is a water-flow timeout error. Here’s how to clear it fast before you toss the machine.

F20 on a Keurig usually means a water flow or pressure fault. The machine isn’t moving water the way it expects, usually from a clog, scale, or a pump issue.

F18 on a Keurig coffee maker is a water flow / fill fault. Here is the fast, real-world fix and when it is worth repairing versus replacing.

F17 on a Keurig usually means an internal fault that shuts the brewer down. Here’s what it really means, what the manual says, what techs actually do, and when to stop throwing money at it.

F16 on a Keurig coffee maker is a heater/temperature fault. Here’s the fast, no‑nonsense way to reset it, clean it, and decide if it’s worth repairing or if it’s time to replace the machine.

Keurig F10 usually points to a heating/temperature fault in the coffee maker. Here’s the straight-shot guide to what it means and what you can realistically do about it.