Troubleshooting - STIEBEL ELTRON DHE 18 Bedienung Und Installation

oPERATIoN

Troubleshooting

6. Troubleshooting
Problem Cause
The appliance will not There is no power.
start despite the DHW
valve being fully open.
The aerator in the tap
or the shower head is
scaled up or dirty.
The water supply has
been interrupted.
When hot water is being The air sensor is detect-
drawn off, cold water ing air in the water. It
flows for a short period. briefly switches off the
heating output.
The required tempera- The high limit safety
ture cannot be set. cut-out and/or internal
anti-scalding protection
are enabled.
The flow rate is too low. ECO function is enabled. Select a different ECO
No settings can be made The operating lock is
on the programming enabled.
unit.
Note
Programming unit displays and selected settings are re-
tained following a power failure.
www.stiebel-eltron.com
If you cannot remedy the fault, contact your qualified contractor.
To facilitate and speed up your enquiry, please provide the serial
number from the type plate (000000-0000-000000).
Remedy
Check the fuses / MCBs in
your fuse box / distribu-
tion board.
Clean and/or descale the
aerator or shower head.
Vent the appliance and
the cold water inlet line.
The appliance restarts
automatically after
1 minute.
Deactivate the temper-
ature limit. The internal
anti-scalding protection
can only be adjusted by
qualified contractors.
level or disable the ECO
function.
To deactivate the oper-
ating lock, press the "i"
button for more than
12 seconds.
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