OPERATION
Troubleshooting
22 |DCE 11/13 www.stiebel-eltron.com
6. Troubleshooting
Problem Cause Remedy
The appliance will not
start despite the DHW
valve being fully open.
No power to the appli-
ance.
Check the fuse/MCB in
your fuse box/distribu-
tion panel.
The flow rate is too low.
The aerator in the tap is
scaled up or dirty.
Clean and/or descale the
aerator or replace the
special aerator.
The water supply has
been interrupted.
Vent the appliance and
the cold water inlet line
(see chapter "Installa-
tion/ Commissioning/
Restarting").
The required tempera-
ture is not being reached.
Internal anti-scalding
protection is activated.
Ask a qualified contrac-
tor to deactivate the an-
ti-scalding protection.
The appliance is no
longer heating the water
because the cold water
inlet temperature is
above 55°C.
Reduce the cold water
inlet temperature.
“Con” occasionally ap-
pears on the display.
The wireless remote con-
trol is outside its range.
Reduce the distance
between the wireless
remote control and the
appliance. Resend the
temperature request.
“Con” frequently appears
on the display.
The battery is at the end
of its capacity.
Change the battery
(see chapter "Battery
change").
If you cannot remedy the fault, notify your qualified contractor.
To facilitate and speed up your request, provide the number from
the type plate (000000-0000-000000).
Nr.: 000000-0000-000000
D0000040351
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