ARDES phobos 840, Instructions For Use Manual, Page: 15 / 50

15
CLEANING AND MAINTENANCE
This appliance does not require any other maintenance than regular
cleaning.
Disconnect the appliance and wait for it to cool down before cleaning it.
Never immerse the appliance in water.
Owing to the impurities contained in the water, the amount of steam
which the appliance releases may diminish after using it for a long time.
In this case, disconnect the appliance, remove the boiler and leave it for
about eight hours with its lower part in 8 cm of a solution made up of
water and vinegar or a scale remover (Fig. 5).
The scales on the electrodes will come off and the humidifier will start to
run again regularly.
Rinse the electrodes with tap water and dry off any water in the boiler or
in the connector.
Dry the appliance carefully before storing it away.