Fault Codes - STIEBEL ELTRON Accelera 220 E Operation And Installation Manual

OPERATION
Troubleshooting
6.1

Fault codes

If the service/fault symbol is fl ashing or continuously illuminated
on the display, you can call up a fault code.
Repeatedly press the menu key until the
fault code is shown following set tem-
perature 2.
Fault code appears
Fault Service Fault description
code symbol
0 No fault
2 continu- The dome sensor has failed.
ously illu- The temperature displayed is
minated measured by the integral sen-
sor. The appliance will continue
to work properly.
4 continu- The integral sensor has failed.
ously illu- The mixed water display will
minated not show the correct amount
but the appliance will continue
to work properly.
6 flashing Dome sensor and integral sen-
sor failed. The appliance stops
heat delivery.
8 flashing The appliance has recognized
that the DHW tank is not heated
for 13 hours, despite there
being a demand.
16 continu- Short circuit impressed current
ously illu- anode / protective anode failed
minated
32 flashing The appliance is operating with
an empty tank or the appliance
is not delivering heat.
The anode current is inter-
rupted. The appliance does not
heat up.
128 continu- No communication between
ously illu- controller and display. The
minated most recently selected set val-
ues are active.
256 flashing Manually activated Emergency
backup mode (only electric
booster element active).
If more than a single fault occurs, the fault code gets summed.
Example: If both the dome sensor and integral sensor failed, the
display shows fault code 6 (=2+4).
16 | Accelera® 220-300 E
Application scenarios for emergency mode
If the appliance shows fault code 8, you can manually activate
emergency mode. If a different fault occurred previously, but did
not cause the appliance to switch off, the display may show a fault
code that is the result of several faults added together.
Listed below are the fault codes which will allow you to activate
emergency mode.
Fault code displayed
8
10
12
24
26
28
138
140
Remedy
152
154
156
Call Stiebel Eltron for
more information if
this error occurs.
When the appliance is operating in emergency backup mode, the
fault code shown is increased by 256.
Fault code displayed in
Call Stiebel Eltron for
more information if
emergency backup mode
this error occurs.
264
266
268
Contact a qualified
280
contractor.
282
You can continue to use 284
the appliance by acti-
394
vating backup mode.
396
See 4.4.2, "Emergency
408
back up mode", pg.
410
14
412
Immediately inform a
qualified contractor,
Notifying a qualifi ed contractor
as the appliance is not
protected against cor-
If you cannot remedy the fault, notify your qualifi ed contractor. To
rosion if the impressed
current anode is faulty.
facilitate and speed up your request, provide the serial number
Fill the appliance with
from the type plate (000000-0000-00000). The type plate can be
water. The fault code
found on the appliance above the "DHW outlet" connection.
disappears and the
appliance starts.
Sample type plate
The contractor needs to
check the connection of
the impressed current
anode and the internal
wiring.
See 4.4.2, "Emergency
back up mode", pg.
14.
1 Serial number on the type plate
Individual fault code(s)
8
Fault code 8 + fault code 2
8+4
8+16
8+2+16
8+4+16
8+2+128
8+4+128
8+16+128
8+2+16+128
8+4+16+128
Individual fault code(s)
8+256
8+2+256
8+4+256
8+16+256
8+2+16+256
8+4+16+256
8+2+128+256
8+4+128-256
8+16+128+256
8+2+16+128+256
8+4+16+128+256
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