Keurig Error Codes

Find troubleshooting guides for all Keurig error codes.

10 error codes across 1 appliance types

Coffeemaker

Code	Meaning	Severity
ADD-WATER	When your Keurig throws 'Add Water' with a full reservoir, it means the reed switch inside the machine base isn't detecting the magnet on the float disk. The float's stuck down, the magnet's gotten weak, or the switch itself has failed. The machine genuinely thinks it's empty. low	low
DESCALE-LIGHT	The descale light staying on means the reset sequence wasn't completed. It's not a sensor detecting scale. It's basically a counter, like an oil change light in your car, that trips after roughly 250 brew cycles. You ran the descale, but didn't finish the reset handshake the firmware's waiting for. low	low
ERROR-2	Error 2 means the water flow sensor inside your K-Supreme or K-Cafe Smart clocked the water moving too slowly through the brew system. Water's either blocked by mineral scale, a clogged needle, or an air bubble in the line, and the sensor just threw up its hands. low	low
HUB	Complete guide to Keurig coffee maker error codes and messages across K-Supreme, K-Elite, K-Cafe, K-Mini, and 2.0 models. Keurig uses numeric codes, text messages, and descale lights to communicate faults. low	low
LEAKING	Your Keurig is physically leaking water outside of its normal brew path. The machine pressurizes water through a needle system into the K-Cup and back out the bottom needle, and when that path gets blocked or a seal fails, water backs up and escapes somewhere it really shouldn't be going. moderate	moderate
NOT-BREWING	The brewer's control board detected that water isn't moving through the system when a brew cycle was initiated. Could be a blocked needle, an air-locked pump, heavy scale buildup in the lines, or the machine's sensors failing to confirm water is present in the reservoir. moderate	moderate
NOT-HOT	Your Keurig's heating element isn't getting water to the target 192F. Either mineral scale is insulating the heating coil from the water flowing past it, the machine hasn't had enough warmup time to reach operating temp, or the element itself is starting to lose efficiency. The board won't throw a hard error code for this. It just delivers lukewarm coffee and waits for you to notice. moderate	moderate
PRIME	'Prime' on a Keurig means the internal pump can't pull water from the reservoir into the brew system. The pump's running, it's trying, but there's an air gap somewhere in the line and water isn't moving. No water means no brew, and that PRIME error just keeps staring at you. low	low
SHORT-CUP	The machine's flow meter clocked less water moving through than what you selected. Something's restricting flow between the reservoir and your cup, either a clogged needle, scale buildup in the internal lines, or an air pocket that's partially blocking the pump. The brewer just stops when it detects the slowdown. moderate	moderate
WONT-TURN-ON	The machine's internal thermal cutoff tripped or the control board lost power entirely. The thermal fuse is a one-shot safety device that permanently opens the circuit when temps spike past a set point, usually around 167°F. Once it blows, nothing works until it's replaced or the board gets reset. moderate	moderate