Keurig was one of the first companies to offer single cup pod-based coffee brewing systems, and it has stayed on the cutting edge of consumer desires by offering several different models of coffee maker since the initial offering. While pod-based single cup coffee brewing is praised for its easy-to-use nature, occasionally problems and glitches do pop up. Fortunately, many of the problems encountered in normal usage can be fixed quickly, and several Keurig models actually help user through troubleshooting steps.
Check that the machine is plugged into a working outlet and its power switch is turned on if the brewer does not have power.
Look at the display on the Keurig brewer for an "ADD WATER" message. Remove the lid over the water reservoir and lift the tank up and away from the brewer. Fill the reservoir with water then replace it on the machine, being sure to seat the tank securely and correctly. Replace the lid on the tank and try to brew a cup.
Lift the handle on the front of machine to open the pod holder. Check that a K-Cup is inserted in the holder. Replace the K-Cup if you're unsure if it's new or previously used. Push the handle back down firmly to ensure the pod holder is completely closed.
Clean the exit needle in the pod holder. Open the pod holder and slide the basket free from the machine. Remove the funnel from the bottom of the basket. Clean the exit hole at the bottom of the basket with a paper clip to remove any clogged coffee grounds. Rinse the hole with warm water, then pat it dry. Replace the funnel on the bottom of the basket and slide the basket back into the pod holder assembly.
De-scale the brewer if the Keurig coffee maker brews partial cups of coffee. De-scaling involves emptying the water reservoir, filling it with vinegar and running the brew cycle several times. De-scaling should be done every three to six months. Consult the manual for your Keurig model for specific de-scaling instructions (see resources).
Turn off the automatic brewing function if the machine starts and stops at odd times. Follow the model-specific directions for your model to turn off the automatic brewing function.