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Blow-down fault
, concern-
ing:
Part._blow-down
Full_blow-down
Blow-down_dilution (only
ELDB)
Max._current blow-down
(only ELDB)
Max._level blow-down
(only HKDB)
Standby_blow-down
Start_blow-down (only
HKDB)
The respective blow-down
was not successful.
•
Blow-down pump is
not driven
- electrical wiring not
o.k.
- Mainboard relay is
not energised
- Check wiring and re-
place, if required
- Measure voltage on
circuit board terminal
10 against N, if
required, change
board
•
Blow-down pump de-
fective
•
Replace blow-down
pump
•
Blow-down pump is
working but water is
not drained (i.e. cylin-
der drain is blocked)
•
Completely clean
steam cylinder and
base to preclude re-
newed short-term clog-
ging
•
Blow-down pump
blocked by scale de-
posits
•
Check blow-down
pump, drain system
and cylinder for scale
deposits and clean
090
Cylinder_full (only ELDB )
The sensor electrode con-
sistently reports cylinder full
status for 60 min
•
Low or widely fluctu-
ating water conductivi-
ty
•
Check feed water
quality; consult your
expert dealer, if
required
•
Electrodes worn out
•
Replace electrodes
•
No electrode cable
run through current
transducer
•
Run one phase
through the current
transducer
•
Salt bridges in
steamcylinder upper
part
•
Clean
•
Foaming (when soft-
ened water is used)
•
Increase blending
rate (bigger raw water
proportion)
091
Current_measurement
(only ELDB)
The current transducer
reading ist not correct
•
Plug is not seated
properly on mainboard
•
Current transducer
defective
•
Check plug seating
•
Replace current
transducer
These icons
are flashing
Fa
ult
code
Fault message
Possible cause
Measure
