Do-it-yourself zelmer coffee machine repair

In detail: do-it-yourself repair of a zelmer coffee machine from a real master for the site my.housecope.com.

Today our Zelmer Supremo coffee machine broke down. The essence of the breakdown is as follows - after pressing the manual coffee button (manual button), the machine works for a few seconds. Then it is simply cut down, all the buttons start blinking, and the machine itself beeps.

Well, we need to disassemble it. Disassembly begins - removing all containers from the machine. Next, from the bottom, unscrew the 3 fixing screws that secure the small cover. A water flow sensor or, as it is called, a fluometer is installed under this cover. It is these typical breakdowns that indicate that this unit is not working properly. A Hall sensor is attached to the flow meter.

The next step is to unscrew the water flow sensor, carefully remove the tubes. They are very difficult to film. Do not confuse which tube is attached to which connector.

After dismantling the pipes, you need to blow through the water flow sensor - this can be done, for example, with a pear. First, we blow it with air, then with water. Using the same pear.

If everything is ok with the impeller inside the flow meter, the hall sensor is in working order, then such a repair should be enough. We check - carefully fasten the tubes in place and turn on the machine. If it does not help, you will have to look further. Remove the flow meter again and disassemble it.

The lid is fastened with latches - and in order not to break them - you need to carefully slip hard thin plates under these latches and only then the lid will snap off.

An impeller is located under the cover. On which there is a magnet. On another part of the flow meter, you can see the Hall sensor, in which, most likely, the cause of the malfunction lies.

Video (click to play).

To pull out the sensor, you must use a hair dryer - it is glued to the body of the flow meter. Next, you need to inspect the sensor. Clean off glue residues and re-solder contacts. If it does not help, you need to change the Hall sensor.

Re-mounting the sensor must be done with hot melt glue. There are many options here and they all depend on how you succeed. You may even have to cut off a part of the case and then fill the space with hot melt glue and check how successful the repair was.

Functionality check is carried out using a tester and a magnet. We connect the tester to the red and yellow wires on the terminal block and turn on the machine. In a state of calm, it reads about 0.5 volts. When the magnet is brought up, it resets the voltage to 0. Next, we mount the impeller in place and turn it, observing how the voltage changes. If a reset to 0 occurs, go to the reverse installation of the entire flowmeter and put it in place, remembering that you need not to confuse which tube to connect to.

We close the cover and mount the screws in place. After such a repair, your coffee machine is back in service.

Any electrical device can fail over time. Repairing coffee makers from Delonghi, Saeco or Krups is quite easy to do with your own hands. These kitchen appliances are considered one of the easiest to repair and operate.

Before you start repairing the device, you need to determine what exactly broke in it. This will greatly speed up and simplify the repair process. There are two types of coffee machines:

Their main difference is the working pressure. In drip coffee makers (Bosch - Bosch, Zelmer - Zelmer, Vitek - Vitek) hot water drips through the coffee filter, through which it passes into the cup, already being a fragrant drink. In an espresso, a stream of boiling water is poured into the cup, passing through a coffee tablet (compressed ground natural coffee). The advantage of using espresso machines - Electrolux, Binatone, Braun, Philips (Philips) and many others - is that they can work without a filter.

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