There are two security screws on my Mr Coffee. What type of screwdriver will take them out.Have not been able to find a picture of the screws to determine what tool to use.

1. Unplug the coffee grinder from the power source and ensure that it is completely cool.
2. Look for the screw or bolt that is recessed into the base of the coffee grinder. It may be covered by a rubber pad or sticker. Remove the pad or sticker to expose the screw.
3. Use a screwdriver to remove the screw or bolt from the base of the coffee grinder. Make sure to keep the screw in a safe place so that you do not lose it.
4. Gently lift the top of the coffee grinder off the base. You may need to use a bit of force to separate the two parts, but be careful not to damage any of the internal components.
5. Once the top is removed, you should be able to access the internal components of the coffee grinder. If you need to remove any other parts, such as the blades, consult the user manual for instructions.

As for the type of screw used in the base, it is likely to be a small machine screw or bolt. You may need to use a small screwdriver or hex key to remove it. If you are unsure what type of screw to use, you can take the screw to a hardware store and ask for assistance in finding a replacement.

Could you post a picture of the screw heads please. There are a lots of different types and seeing them will help tell you which one you need

Yes! My PST x91 has no display but otherwise works. After practically destroying it I found the secret to be two screws.
So from the underside of the coffee feed remove the three screws and the plate with the rubber bumper around most of it. Then you'll see the two holes of the inside of the fancy chrome columns that don't do anything.
On the bottom of those holes are the two screws mentioned above. On mine, they were so corroded I didn't even know they were screws. A screwdriver broke off pieces of the screws and I ended up drilling them out. Did some damage to the plastic but finally got the screw heads small enough to go through the holes.
Then you can pull out the chrome column piece and slide forward the dome piece. Then you'll see two screws. Remove them and the Mr Coffee piece will swivel out and release at the top. Then remove the two screws holding the front display panel and slide the panel up and out. That's all. If you need to get further inside, remove screws and other panels and slide to release as well. For me, I think I need a new coffee maker.

To replace this part you will have to open the jura machine. I found this information out because I had the dreaded error 8 reading on my jura machine which stopped it from making coffee. To disassemble the jura coffee machine you'll need some special tools that I will talk about as I describe how to get to the sensor, make sure you get those tools or something similar.
The problem that you are having is the boiler is not heating properly (heating the water properly), so the taste of espresso will not be good. You need a high heating temperature to get good tasting espresso. This generally happens because the thermo sensor went bad and the electronic board is not sensing the proper heat because the thermo sensor went out.
1. Remove the drip tray
2. Remove the water tank
3. Remove the coffee cover and bean hopper cover (aroma cover)
4. Remove the cover for the pre-ground coffee shut
5. Now you will need to remove the cup warning plate that is stainless steel, it is fastened with 2 security screws. You'll need a Newelectronx t15 torx security screwdriver to take them out.
6. Now remove the top plate, there will be 5 screws fastening it down. Again use the Newelectronx t15 torx screwdriver to take them out. Pull it up to release.
7. On the rear end of the machine, you'll need to remove some weird oval head screws. The only place I could find the tool for this oval head screw was in the Newelectronx Coffee Tool Kit Set. Get the oval tool, which is different from the Newelectronx t15 torx bit and remove the next few screws. There are 2 screws - oval head, on the lower backside. Take off the rear back panel. On the left you'll find the mechanical parts.
8. On the boiler, which is the big metal part that is formed like an upside down tear drop. The thermo sensor is attached to the boiler with a screw - again use the Newelectronx security screwdriver to remove the security screw.
9. The thermo sensor connects to the electronic board. Detach the wire from the electronic board. Now the thermo sensor is off.
10. Replace the thermo sensor with a new jura thermo sensor that has the same wire colors. If the wire color is wrong the contact thermo sensor might not perform as it should.
11. Now put the machine back together. Good luck

I just now took a flat blade screwdriver, turned the coffee mill (Mr. Coffee) upside down, pushed the little bit of cord back in until I saw the cord wrapped around the base. Gently lifted it over the base and kept hand unwrapping it. Worked fine, will not retract, but this is not a problem for me. Hope this helps.

Go to a Harbor Freight store near you or on-line to get a kit of 100-piece security-bits for about seven dollars on sale. The kit contains about every design imaginable and has about 9 or 10 torx bits with hollow centers. Hope this helps!

3 beeps means plugged water line. Take off the bottom of the coffee maker with a small phillips head screwdriver. Use pliers (I used needle nose type) to remove the wire clamps holding on the silicone water tubes to the hot plate. In my case, the water line from the reservoir to the plate was clogged with something I couldn't see until I blew on the hose and it popped out, could have been scale, grounds etc Clean with vinegar. Back in service!

There is high temp tubing that may have come loose or become dammaged fromheat or the coil that heats the water may be leaking if you are using strong cleaning chemicals to remove scale from the unit. The bottom is held on with screws. Remove these and look to see what is the source of the leak.

you can't ,its up in the top behind the controls.
you have to take the pot totally apart.
only a trained tech should attempt this.

I took a small (cheap) slot screwdriver with a blade just wide enough to fit into the wide part of the screw. I then took a hacksaw to the center of the screwdriver blade. This works best if the hacksaw blade is fairly thick. The idea is to remove enough of the center of the screwdriver blade so that the screwdriver can be inserted into the screw allowing the hacked out area of the screwdriver blade to fit around the stupid center post of the screw. The screws on mine weren't that tight, so I could turn the screws without twisting the screwdriver blade.