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The power maybe controlled by a switch. Only after the switch trigger, the power will go to the transformer. If the transformer has all the continuities and no shorts, then it's not the problem.

I wonder if there is any grinder comparison test for gradations, D-values and uniformity coefficients. For example, set all grinders to grind 400 microns. Then use a 400 micron sieve to measure how much in percentage will pass through it. The higher the percentage, the worse the grinder. And use...

Well, just by looking at the burrs and their configuration inside a grinder, you'd know this is 100% true: you can only control MAXIMUM size, not MINIMUM size, with it! If you want to control both to make grind "consistent", use sieves that match your maximum size and let all smaller grinds go...

Those have been on the market as long as the machines already: https://www.republicoftea.com/tea-capsules/c/capsules/ So the survey should be: how many people want their tea to taste like coffee?

Follow from the water tank, check and clean each component, flow meter, pump, thermoblock, solenoid, ... If it's an used machine, anything could be wrong.

Yes, the transformer is on the board. Now it's not very safe to measure voltages. But you can still check continuity of the transformer first. Then follow its output side to other components, especially diodes and mosfets. There is usually burn sign you can see.

Yes, the transformer is before the board. The board may need multiple voltages from the transformer. If one is missing, you may still have another one on the board.

Check if you have low voltages after the transformer. There are usually two different voltages, 9VAC and 16VAC, for example. Make sure they are all there.

You made coffee with it before without any problem? There is usually a fuse on or close to the PCB. Check it first.

I had a Bravilor Bonamat Sego 12 before and it's good for a small office.

If you don't plan to use it on a boat/outdoor/not very well insulated home, you don't need to worry about it.

You can install a water softener for your espresso machine for less than $200. Then you don't need to worry about scale buildup anymore even without any detergent.

Try muriatic acid (for pool use). You can try diluting by different percentage starting with 30% for example.

Since you mentioned Princess, I assume you make coffee with C5. Since C5 is an espresso machine, better to make an espresso with it first and judge the quality based on that. Make 1 oz (30 ml) and see if it has any crema on top.

Buy a new pressure relief valve and replace it.

Two things to check in the order: 1. Klix on; 2. Q1. More than likely it's Q1:

You can go to Jura website to compare. Each model has a model number, compare that number. As long as I know, all Jura models all have pre-ground chute since that's where you drop clean tablets to clean the machine once in a while.

First of all, you don't really need Jura tabs, Urnex Rinza Acid Formula Milk Frother Cleaner will work just fine and it's a very popular brand. Second, no need to disassemble those everyday since that will only increase wear/tear and the chance you may drop/lose them. I use a Z8 and make milk...

You pulled the wrong part out: the black piece belongs to the bottom. You can drop the tank to its base, turn it clockwise until it locks, then use one hand hold all two black pieces together and the other hand pull the tank out. After that, you have to make sure the two black pieces lock to...