Service

FAQ

Questions about the machines and technology

For more information we summed up our most frequently asked questions for you:

  • The task of a PID temperature control is to control the temperature of the two boiler. The temperature is kept at the programmed value with minimum deviations of 1°C. PID stands for "proportional - integral - derivative". The temperature plays an important role in the preparation of coffee.
  • Please empty the boiler(s).
  • To empty the boiler with a single boiler machine, you must let the machine heat up and then drain the old water through the brew group. A complete emptying of the boiler is not possible (see instructions).
  • With a heat exchanger system, empty the boiler by means of hot water extraction.
  • The dual boiler machine is emptied via the brew group and hot water extraction.
  • We recommend to carry out a brew group cleaning and a decalcification.
  • With our models with vibration pump you can adjust the machine to your desired brewing pressure. To do this, tension the portafilter with the blind filter inserted into the machine. Please press the brew group lever as if you were preparing an espresso. On the pump pressure gauge you will now see how the pressure builds up to the set value. Turn the larger screw (next to the water tank) "clockwise" to increase the pressure and turn the screw "counterclockwise" to reduce the pump pressure. The pump pressure gauge shows the change.
  • Machines with a rotary pump should only be adjusted by the specialist dealer.
  • Please note that Profitec discourages you from increasing the pressure on the screw and refers you to your dealer. From the factory the machines are preset to a pressure of 9 bar. If you are using the machine under a direct water connection, please note that the pump pressure is adjusted by the existing pressure. Also here a re-adjustment of the pump pressure should only be carried out by the specialist dealer.
  • The connection may only be carried out by authorised specialist dealer personnel. You are welcome to use our contact form to contact a specialist dealer.
  • You need a pressure reducer (item no. 89455) for the connection, and we recommend that you use a shut-off valve.
  • Please note that you cannot connect water filters to the water tank adapters on machines with a rotary pump. Please use water filter pads (item no. 89440) or pre-filtered water, e.g. Brita.
  • The temperature of the machine can only be modified for models with PID control. For all other models this must be adjusted by an authorised specialist dealer.
  • Please note that our machines are factory-set to the optimum brewing temperature of 88-95°C.
  • The water filter was not soaked in the water long enough.
  • The water filter should be connected to the silicone hose under water to prevent air bubbles.
  • The water filter should be inserted into the water tank.
    If this is not possible, there is still air in the water filter.
  • Water shortage. The swimmer in the machine is not sitting properly. (The correct position of the float can be found in the user manual.)
  • Above the water tank is a large adjusting screw, turn clockwise to increase the brewing pressure (see user manual).
  • The filling quantity of an espresso is 25-30 ml.
  • The duration from turning the brew group lever to the perfect espresso is 23-25 seconds.
  • Use filtered water and a clean portafilter without old coffee grounds.
  • Grind fresh coffee. As soon as oxygen reaches the grinded coffee, the aromas evaporate.
  • Start the brewing process immediately after inserting the portafilter into the hot brew group, otherwise the coffee will burn.

The preparation:

  • Preheat the cups on the cup warming tray. Allow the portafilter to be clamped in the machine during the heating phase.
  • Fill the portafilter with fresh ground coffee. The coffee grounds should fall "easily and flakly" from the coffee grinder into the portafilter.
  • Tamp the ground coffee with approx. 15-20 kg of tamping pressure. As a help, you can use our pressure-regulating tamper. Please make sure that the ground coffee is firmly pressed in the portafilter. To measure whether you have tamped properly, you can, among other things, turn the portafilter and the coffee must not fall out.
  • Preheat the cup by pouring hot water into it.
  • Empty the cup and allow some water to run through the brew group.
  • Insert the portafilter, place the cup underneath and prepare the espresso.
  • The brew group is not yet warm enough.
  • The machine is calcified.
  • The portafilter was not clamped during the heating phase and could not yet take over heat via the brew group.
  • Adjust the grinding degree.
  • Increase the tamping pressure.
  • Coffee too old
  • The optimum pressure during coffee brewing is between 9 and 11 bar.
  • We recommends a maintenance interval of 3-4 years. Maintenance has to be carried out by an authorised retailer. To ask for a dealer near you you can use our contact form.
  • Descaling is recommended depending on the degree of water hardness.
  • We recommend to carry out the brew group cleaning every 150 cups
  • The blind filter is required to measure the actual pump pressure of the machine.
  • The blind filter is required for group cleaning.
  • Only from one of our authorised dealers. We will be happy to inform you about the dealers next to you. Please use our contact form.

PREPATATION

How to make the perfect espresso?

With the right technique and considering some hints it‘s very easy.
The following tips can help you get it all right.

  • Make sure the coffee is always fresh. The flavors fade away super quickly as soon as oxygen is added to the ground coffee.
  • 14-20g of ground coffee should land in the portafilter. Then you smooth the coffee powder so you can squeeze the coffee with the tamper.
  • Tamp a pressure of about 15-30 kg on the ground coffee. Later, the water needs this amount of pressure to run through evenly.
  • Put the cups are under the portafilter and open the lever. The espresso runs about 20 - 30 seconds.
  • Coffee is very sensitive to temperatures. Pro Tip: Preheat your cup on the cup tray or the unsing the hot water dispenser.

Which degree of grinding is right?

When the espresso flows to too fast out of the portafilter- it is to coarse.
If it flows too slow or not at all, is too fine.
You will get to the right grinding degree after a few tries.

GESCHÜTZTER HÄNDLERBEREICH

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