Cleaning The Steam Nozzle - Harvia Nova SWA20U1XA Instrucciones De Instalacion Y Uso

Descaling
Tap water contains impurities, such as lime, which may accumulate inside the steam generator and form clogs over
time. The amount of lime in the water (hardness), and consequently the need for descaling, varies from region to
region. If the tap water is hard, it is advisable to install a water filter on the inlet side of the steam generator. The
water filter HWF01S for the steam shower column is sold separately. See »Water-quality requirements.
Descaling with a citric-acid solution
The vapour produced by the citric-acid solution is harmless. In addition to citric-acid solution, other substances can be
used for descaling as well. Always follow the instructions on the package.
1. Mix 50–80 g of citric acid with one litre of water.
2. Turn the steam generator on and let it run for 10 minutes.
3. Unplug the steam generator
4. Remove the nozzle of the steam shower column and the glass for the technical space (see Cleaning the water
level sensor)
5. Remove the plug at the end of the service hose and pour the citric-acid solution into the water tank. Note: The
capacity of the water tank is about 0.6 litres. Put the plug of the service hose back on and replace the nozzle and
the glass for the technical space.
6. Plug the steam generator back in. If the memory for power failures is on, the device will start automatically.
7. Turn the steam generator on and let it run for 10 minutes.
8. Turn the steam generator off and wait for 30 minutes.

Cleaning the steam nozzle

The steam nozzle can be cleaned with a mild soap solution.
Troubleshooting
If an error occurs, the control panel will show a device number and an error message, which helps troubleshooting
the cause for the error.
The user can check only the points marked with an asterisk (*). All other maintenance must be
done by professional maintenance personnel.
Temperature sensor's measuring circuit broken. Check the wiring and connections from connectors
E1
to the sensor.
Temperature sensor's measuring circuit short-circuited. Check the wiring and connections from
E2
connectors to the sensor.
Overheat protector's measuring circuit broken. Press the overheat protector's reset button. Check the
E3
wiring and connections from connectors to the overheat protector's sensor.
Water level low. Check if there is water in the measurement cup. Check the water inlet*, solenoid valve,
E5
discharge valve, and the water level sensor.
There is still water in the reservoir even rinsing and discharging has been done. Check if there is
E7
water in the measurement cup. Check discharge valve and the water level sensor.
Connection failure between the control panel and the steam generator. Check the cable and the
E9
connectors.
Water reservoir empty after rinsing. Check if there is water in the measurement cup. Check the water
E10
inlet*, solenoid valve, discharge valve, and the water level sensor.
Water reservoir full when starting the filling (starting, stopping, rinsing cycle). Check the
E11
discharge valve and the water level sensor.
Too many fillings within five minutes. Check the water inlet*, flow rate*, solenoid valve, discharge valve
E13
and the water level sensor.
EN
55