HD7892/00 /01
5-15
Repair instruction
Descaling
Scale builds up inside the machine during use. It is essential to descale the SENSEO® coff ee machine when the CALC Light
goes on. If the descaling procedure is not performed correctly, scale residue remains behind in the machine. This causes
scale to build up more quickly and may cause permanent and irreparable damage to the machine.
Use the correct descaling agent (HD7011, HD7012 only). It has been developed to ensure better machine performance and
operation. Never use a descaling agent based on mineral acids such as Sulphuric acid, Acetic acid (vinegar) or Hydrochloric
acid. These descaling agents may damage your SENSEO® coff ee machine.
For detailed instructions please refer to the Directions For Use, chapter CALC.
Volume adjustment
Note: Volume adjustment may only be carried out in case the repair technician is sure there is no underlying cause (e.g. User
programmable volume, leakage, incorrect voltage setting, etc.) for the deviation in volume from the factory default.
Every time a PCBA is replaced for whatever reason the 1-cup & 2-cup setting both need to be separately
adjusted/calibrated!
There is no country selection option therefore adjust both 1-cup & 2-cup recipes within the right volumes
following the table page 2.
For the correct procedure on Volume measurement, please refer to the SENSEO® Repair process.
How to adjust the volume output:
1-cup
1. Make sure the boiler is fi lled properly, otherwise perform the Flush before fi rst use procedure, according to the
instructions in the DFU.
2. Make sure the top collector and 1-cup pod holder, without a coff ee pod is installed in the appliance.
Calibrate the scale you are going to use for the measurement, by placing the empty cup and switching it on.
3. Press the 1-cup coff ee button to start a regular coff ee brewing process. When fi nished also pour the leftover water in the
pod holder into the cup.
4. Measure the output and compare to the specifi cations you fi nd on page 2.
5. Determine the deviation from the specifi cation, the deviation can be adjusted in steps of 3,5 mL.
The calculated deviation divided by 3,5 will tell you how many steps (times you need to actuate the button) you need to
in-, or decrease the value.
6. Follow the steps as mentioned under Service modes - “Manual pump adjustment” to recalibrate the pump.
7. Measure the newly calibrated volume, and repeat steps 4-6 if necessary.
2-cup:
Repeat steps 1 to 7 to calibrate/adjust for the 2-cup recipe. (you can continue using the 1-cup podholder)
