STIEBEL ELTRON WWK 302 H - 4. Settings

OPERATION
Cleaning, care and maintenance
8 | WWK222-302 H www.stiebel-eltron.com
Protective anode and battery replacement
The appliance is equipped with a maintenance-free, impressed
current anode that protects the tank from corrosion while it is
supplied with power. At the factory, the appliance is fitted with
rechargeable batteries that ensure the power supply to the im-
pressed current anode in the case of a power failure. The power
supply may be interrupted for up to 16 hours.
If the power supply is regularly interrupted by a switching con-
tact or the security of supply is inadequate, the batteries of the
impressed current anode must be replaced every three years. Ne-
glecting to do this puts the appliance at risk of damage. If regular
interruptions in the power supply are not anticipated and there
is security of supply, no maintenance of the batteries is required
and the appliance is maintenance-free in this regard.
!
Material losses
Never use batteries that cannot be charged. Only re-
chargeable batteries are permissible.
Batteries may be damaged in the appliance. Without a
power supply, the impressed current anode and the cyl-
inder would not be protected against corrosion.
The rechargeable batteries are secured at the back of the fascia.
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 Undo the screw securing the fascia.
 Carefully remove the fascia so that the cables running from
the batteries to the impressed current anode in the appliance
are not pulled out.
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1
1 Plug-in connection
 Undo the plug-in connection by pressing the connection lock
on both sides.
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1
1 Battery compartment
 Pull the battery compartment down to remove it from the
retainer.
 Open the battery compartment using a screwdriver.
 Replace the batteries (NiMH, type AAA, ≥800mAh).
!
Material losses
Make sure that the batteries are properly inserted the
right way round, because otherwise there will be no
corrosion protection in the event of interruptions in the
power supply.
 Close the battery compartment using a screwdriver.
 Push the battery compartment into the retainer.
 Reconnect it to the appliance with the plug-in connection.