Clean the nozzle(s)

  1. Make sure the device is off.
  2. Remove the water supply.
  3. Pull the nozzle (Figure 1, pos. 2) from the extension lance (Figure 1, pos. 2).
  4. Clean the nozzle with the cleaning pin (Figure 1, pos. 1).
  5. Flush it thoroughly (against the direction of the high-pressure jet).
Figure 1.