Chosen Solution
I have a Keurig that I was given for free, if I can fix it. It’s serial number start with a 76 but looks just like a K75. It pulls water in from the water storage, heats it up but does not pour it through to dispense it. I have checked the top pin that punctures the cup and it is not clogged. I have used a turkey baster and been able to suction out hot water through that top pin so I know that tube is not clogged. So based on that I’m thinking that it’s some motor after the boiler that is not working. It’s not making any unusual noises. I’m comfortable replacing a part, as long as I know what part needs replacing. Don’t want to spend $50 if it only takes a $15 part. :) Any ideas? Thanks! Rich
Hi Rich, been looking around and it appears like the keurig only has one pump. but it does have plenty of tubes that could be kinked or blocked. I would open her up and do a good visual inspection, and test any possible leads. I have also looked around the web and notice not many promising solutions, I would assume you have tried cleaning with vinegar. And actually if the previous owner was running hard water through it then that quite possibly mineral buildup could be the issue. Good luck!
Lift the handle to tilt the top back as you would to normally load the K-cup. Remove the two screw underneath the cover and pop the tilting top off (two screws underneath release the top cover) There is an in-line backflow valve just underneath this cover. You should see that it is clogged with residual coffee grounds. Remove it by removing the tie wraps and then pull off the hoses from both ends. Watch for the correct orientation when you remove it. You don’t want to put back in backwards! Run water back and forth through this valve and clean out the old coffee. Re-install the valve (correct orientation) and to be completely sure of no leaks you may want to re-install some small tie-wraps on the hoses. I have not done this and mine hasn’t leaked yet. Enjoy coffee!
There are two sharps that function to pierce the K-cup and provide water flow. The upper one seems to have two orifices just below the sharp tip and these may need to be cleaned out. The lower sharp also has an orifice, I found only one, which pierces the lower part of the cup, perhaps to provide air or water passage. If you brew capacchino or cocoa in addition to coffee, that lower orifice may be clogged. You will need a paper clip, flashlight and glasses to find and clear the orifices. Push clip into orifice about 3/4". Proceed slowly.
I did some digging today before I found this and decided to take my B150 (commercial brewer) apart to blow compressed air up the exit tube to “clear” it. Well, these big machines are not that simple. I ended up right by the needle and found the backflow preventer. I decided to just remove it to see if it improved flow. Well, it did! I never saw grounds in it and it takes a bit of flow to open the valve. I will monitor it to see if this is true issue or not. If it works for the next week, I will hunt for a new valve, or just omit it?
