9. Service and maintenance
9.1. Water heater is leaking
a) Turn off power to the water heater.
b) Open the hot water tap until cold water runs out.
c) Shut off the main water valve or the shut-off valve for the safety
group.
d) Open a hot water tap to de-pressurise the system.
e) Turn off the hot water tap if no more cold water runs out.
ä Caution!
A small amount of water may run out of the water heater during
the following steps.
f) Disconnect the cold water pipe from the water heater.
g) Connect a flexible hose to the appliance's cold water
connection.
h) Drain the water heater via the hose into a water drain.
Open the hot water tap so that the water heater can draw in air.
Note
Once the water heater is empty, a small amount of water
remains in the storage tank.
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