Shutting Down; Maintenance - STIEBEL ELTRON DNM 3 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 sieve in the cold
water line is blocked.
The heater is faulty.
www.stiebel-eltron.com

14. Maintenance

Draining the appliance
Remedy
Clean and/or descale the
aerator or replace the
special aerator.
If the appliance needs to be drained for maintenance or to protect
Clean the sieve after
the whole installation when there is a risk of frost, proceed as
shutting off the cold
water inlet line. follows:
Check the resistance of
f Close the shut-off valve in the cold water inlet line. f
the heating system and
f Open the draw-off valve. f
replace the appliance if
required.
f Undo the water connections on the appliance. f
DANGER Electrocution
Before any work on the appliance, disconnect all poles
from the power supply.
DANGER Scalding
Hot water may escape during the draining process.
DNM | 39