Shutting Down; Troubleshooting; Led Indicators - STIEBEL ELTRON DEM 4 Bedienung Und Installation

INSTALLATION

Shutting down

12. Shutting down
f Isolate the appliance from the power supply by means of the f
fuse/MCB in your fuse box or by pulling the power cable plug
from the socket.
f Drain the appliance (see chapter "Maintenance"). f

13. Troubleshooting

Problem Cause
The appliance will not The aerator in the tap is
start despite the DHW scaled up or dirty.
valve being fully open.
The flow rate is set too
low.
The sieve in the cold water
line is blocked.
The heater is faulty.
The safety pressure limiter
has responded.
The required temper- The appliance operates at
ature is not being its output limit.
reached.
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LED indicators

Remedy
Clean and/or descale the
aerator or replace the
special aerator.
Increase the flow rate.
Clean the sieve after
1 Illuminates red in the case of a fault
shutting off the cold water
2 Illuminates yellow during heating operation
inlet line.
3 Flashes green if the PCB is receiving power
Check the resistance of
the heating system and
replace the appliance if
required.
Remedy the cause of the
fault. Isolate the appliance
from the power supply
and depressurise the
water line. Activate the
safety pressure limiter.
Reduce the flow rate.
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