4
|DHB-E electronic
www.stiebel-eltron.com
Operation
What to do if...
6. What to do if...
6.1 ...the water supply is interrupted?
!
Risk of damage!
After an interruption to the water supply, take
the following steps, prior to returning the appliance
into use.
f
f
Remove fuses or trip the appropriate MCBs.
f
f
Open a draw-off valve, downstream of the appliance long
enough to vent all air from the appliance and its upstream
cold water supply line.
f
f
Replace the fuses upstream or reset the relevant MCBs.
6.2 ...faults occur on the appliance?
Fault
Cause
Remedy
The appliance will not
start in spite of a fully
open DHW valve.
There is no voltage.
Check the fuse/MCB in
your fuse box/distribu-
tion panel.
Cold water flows briefly
while hot water is being
drawn.
Starting volume is not
achieved. The perlator in
the tap or shower head is
scaled up or dirty.
Clean and/or descale the
perlator or the shower
head.
The heating system is
faulty.
Telephone your heating
contractor.
The air sensor detects air
in the water and briefly
switches the heater OFF.
The appliance restarts
automatically after one
minute.
If you cannot remedy the fault, contact your heating contractor.
To speed your enquiry, please provide the serial number from the
type plate (no. 000000-0000-000000):
Type plate example
electronic
electroni c
26
�0
2�
02
�0
85
1
INSTALLATION