Q&A for How to Prime a Keurig Coffee Maker

All you have to do is fill the reservoir with vinegar and let brew in the machine with the power on for 30 minutes. After that, run the machine with some fresh water to flush it out.

Unplug the machine. Remove the reservoir and any loose accessories. Turn the machine upside down and hit the bottom of the machine. This will dislodge any internal air bubbles that are causing the 'prime' error. Return the machine to the upright position. Insert the reservoir and accessories. Turn on and it should be ready to go.

It could be the water pump is burnt, try restarting the cycle first. Sometimes it takes time.

I would recommend using a mixture of half water and half vinegar. Run that mixture through 5-10 cycles. After that, run plain water through about 5 cycles. This will clean out your machine without the risk of soapy residue.

No, but your machine will be more prone to clogging, which may permanently render your machine unusable.

After turning the unit on, it should take no more than a minute or two to heat up. The message "Ready" will appear.

Try removing the reservoir and placing it back in, it may not be in correctly.

This shouldn't happen, but if it does, try turning it back on. Keurig machines have some "memory" and might finish the brew you started. If that doesn't work, open the lid and close it, then press the button you need to fill your cup with the appropriate amount of liquid.

The water reservoir needs to be cleaned out. Take it off the base, clean it out and refill the tank with water to the line "max". Run a brew cycle with only water to test it out.