Slow to brew and cup is not full.

Phillip2, check this guide. Slightly different model, but should be pretty much the same idea on yours.

This seemed to help a LITTLE but I noticed corrosion inside my machine (2 yrs old and I use it to make 2 to 4 cups a day). I just don't think these things are made to last. After all ....we live in a monetary system of cyclical consumption & planned obsolescence. Time to donate to the cause and get a new one, lol.

I was only getting 2 ounces of coffee to come out. I did not have the keurig cleaner, which cleans the top pin. so i found a small oxy salad dressing container made out of silicon, filled it with water and closed the top part of the unit down on it a few times, creating a suction. then i took a very thin sewing needle and worked it into the pin hole, and re-did the suction routine. i noticed coffee grounds in the water. repeated several times and now my kuerig works good as new. i get 8 ounces of coffee in less than a minute.

I used a turkey Baster to push water through the filter with the water resevoir on and half full, center the baster over the water outlet and fill the baster and keep pushing water through until machine runs clean, it took me 3 minutes to get mine going again

Corrosion can be cleaned

All too often it is not corrosion you're seeing but mineral build up. If you run a 50/50 reservoir of vinegar/water once a month it stays clean. Best if you do it from new. It's folly to think anything works flawlessly for 2 years w/o maintenance. While the bottom pin is easy to see and clean, often it is the top needle that clogs. It has a one way check valve but grounds can still get sucked into the first inch or so before the valve.