Keurig Water Under Pressure Fix

by Cluneke

132K3451

Intro: Keurig Water Under Pressure Fix

*MAKE SURE THE MACHINE IS UNPLUGGED FOR ALL THE STEPS DUE TO HIGH VOLTAGE*

This instructable may very on disassembly per machine. What I am fixing in this tutorial is the pressure switch on the circuit board. I have had this machine(K200 series) for less than a month now and have only used it about 4 times. Every time I would power it up an error message would pop up right away before even trying to brew, the message said, "Water under pressure." Usually this means that your needles located and the top AND bottom of the Keurig ( the ones that poke thru the k cup) are clogged, first use the orange cleaning accessory to clean the needles then try a paper clip. if that doesn't work then your pressure sensor has probably failed which I will get into in the next pages.

STEP 1: Removing the Plastic

instructions may be alittle out of order due to me breaking a few thing to figure out how it went together..

To remove the plastic you will have to remove the glossed black U shaped piece in the back of the keurig and there will be two screws under there that you need to remove.

remove two little screw covers that the water reservoir covers when its in place, looks like a small circle on each side, then remove the screws.

after that there will be two more clips holding the top half of the back plastic piece, try bending the plastic a little to get the clips over the notches and remove the plastic

Take all the screws out of the bottom.

to remove the front plastic piece put the keurig on its back and pull the plastic down away from the top of the machine, where it begins to curve just pops off.

the side panel should just flex and pull off.

STEP 2: Water Level Sensor

this picture shows how the keurig determines if there is enough water in the reservoir or not. don't need to know this but its good info if your having a problem involving the "add water" error.

STEP 3: Circuit and Pressure Sensor

the failed pressure sensor will have a small hose going into it from the side of the board as shown in the picture ( the black circle on the right).

there will be 4 screws at the top of the rest of the keurig to remove the "head" take pictures of any cables and wires disconnected for reference.

the sensor that failed is a pressure sensor, model FPN-15PG as shown in the pictures.

to check the sensor you have to check the output voltage.

using the second picture showing the model number of the sensor check the voltage on pin (6) which is the pin at the top right of the sensor to the right of the little notch in the top middle of the sensor.

the voltage I believe should be under 1v, mine was at 4.94v (bad)

if you determine that your sensor is bad then just cut that prong.

RECOMMED REPLACEMENT OF SENSOR

sorry that this isn't a great instractable, I wasn't planning on making one so I don't have step specific pictures, however I wasn't able to find any info on how to do this or what causes the error message so here I am providing a little info.

34 Comments

Cluneke 1 year ago

I dont see it on here anywhere so I must have forgotten to mention... this is bypassing the pressure switch so do it at you're own risk. You are disabling the safety switch for internal pressure

bkblair38 1 year ago

Excellent instructable! Just completed this fix and I'm back in fresh hot coffee without buying a new machine.
Thanks for such concise instructions

Cluneke 1 year ago

Nice to see this is still helping people years later

engair 2 years ago

Awesome. I had figured out what was wrong but had no clue what kind of output i was supposed to have. Datasheets on the switch were no help. I love it. Thsnk you buddy.

gastelumri 3 years ago

It worked for me
I did it with a small nail care cutter
Thanks a lot!!

Cluneke 3 years ago

Awesome! Thanks for the pictures

David1215 3 years ago

I got 0.7 V on 5 out of 6 pins and 0.2 V on the last pin. I am not sure which one was pin 6. Is pin 6 the one closest (and above) to the "5" imprinted on the switch? Since my voltage is less than one, could it still be a bad switch? I cleaned all of the needles thoroughly so I can't see why I have high pressure.

David1215 3 years ago

Thanks!

So I cut the pin on the side of the circuit board that Borknard showed in his picture? Or do I cut on the other side of the circuit board where the switch module is located?

Cluneke 3 years ago

You simply cut the pin to disconnect it from the board

karla.harkins1 4 years ago

Hello. I followed all your instructions and only had 1 screw left over. However, my Keurig won't even try to brew. As soon as I turn it on the water under pressure pops up. What could I have done to it?

Cluneke 4 years ago

Are you sure you cut pin6 and not a different pin?

Cluneke 4 years ago

Sorry for the delay, I just saw this

Seat4f 4 years ago

Thanks for posting this. It took me a while to disassemble, but it saved me from spending $100+ on buying a new one!

slantedsoftware 4 years ago

Awesome, thank you so much. I measured mine and voltage was similar to yours. Clipped pin 6 and it worked like a charm.

Cluneke 4 years ago

Glad to hear it!

Cluneke 8 years ago

I just received my replacement Keurig and I still have my old one that I fixed

SalvadorM33 5 years ago

You just got me a free Keurig!!!!!
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