STIEBEL ELTRON DEL 18/21/24 SL electronic LCD Bedienung Und Installation Seite 26

opEratIon
Cleaning, care and maintenance
4.3 inlet temperature information
If the inlet temperature is higher than the preferred temperature,
e.g. if water has been preheated by solar energy, the display alter-
nates between showing "hot" and the measured inlet temperature.
The LED scalding risk indicator also flashes.
recommended setting for operation with a thermostatic valve
and water preheated by solar energy
f Set the temperature at the appliance to the max. f
temperature.
4.4 Following an interruption to the water supply
Material losses
!
Following an interruption of the water supply the appli-
ance must be recommissioned by carrying out the follow-
ing steps, in order to prevent the destruction of the bare
wire heating system.
f Disconnect the appliance from the power supply by f
removing the fuses/tripping the MCBs.
f Open the tap for one minute until the appliance and f
its upstream cold water inlet line are free of air.
f Switch the mains power back ON again. f
5. cleaning, care and maintenance
f Never use abrasive or corrosive cleaning agents. A damp f
cloth is sufficient for cleaning the appliance.
f Check the taps/valves regularly. Limescale deposits at the f
spouts can be removed using commercially available descal-
ing agents.
26 | DEL SL electronic LCD
6. troubleshooting
fault Cause
The appliance will There is no voltage in the
not start despite the appliance.
DHW valve being
fully open.
The aerator in the tap or
the shower head is scaled
up or contaminated.
The water supply has been
interrupted.
Cold water flows The air sensor detects air
briefly while hot in the water and the ap-
water is being pliance's heating output is
drawn. briefly switched off.
The temperature at The child-proofing Tmax is
the appliance cannot enabled.
be set to > 43 °C.
The anti-scalding protec-
tion in the appliance is
enabled.
If you cannot remedy the fault, notify 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.
Clean and/or descale the
aerator or shower head.
Vent the appliance and the
cold water inlet line (see
chapter "Settings / Follow-
ing an interruption to the
water supply").
The appliance restarts au-
tomatically after 1 minute.
Disable the child-proofing
(see chapter "Appliance
description")
Your qualified contractor
can disable the anti-scald-
ing protection for you.
DEL ... SL
No.: 000000-0000-000000
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