63
Warning
Error
Cause
Remedy
Code Malfunction
Code Malfunction
W23 No electrode current
for more than 20
minutes
E23 No electrode current
for more than 4
hours
Phase failure heating voltage.
Inspect/turn on service switch of
the mains supply line. Inspect the
fuses of the mains supply, replace
if necessary.
Water supply obstructed/shut-off
valve closed/water pressure too
low.
Inspect water supply (filter, water
piping, etc.), check/open shut-off
valve, check water pressure.
Inlet valve blocked or defective.
Inspect strainer insert of the inlet
valve, if applicable clean strainer
insert or replace inlet valve.
Excessive back pressure in the
steam line (duct pressure too high,
steam line too long or kinked), caus
-
ing water loss via filling cup.
Check duct pressure, inspect steam
installation. If applicable install
pressure compensation kit (see
options).
Leakage in the water system.
Inspect water system and seal if
necessary.
W24 Electrode current in
relation to the steam
demand too high
E24 Electrode current in
relation to the steam
demand too high
Humidity demand has decreased
too fast.
Automatic adaptation of the oper
-
ating point.
Drain valve defective.
Inspect drain valve, replace if nec
-
essary.
Drain in steam cylinder blocked.
Clean/replace steam cylinder.
Water conductivity too high for this
type of steam cylinder.
Select correct steam cylinder
type.
W25 Max. admissible
electrode
current exceeded
E25 Max. admissible
electrode
current exceeded
Drain valve defective.
Inspect drain valve, replace if nec
-
essary.
Drain in steam cylinder blocked.
Clean/replace steam cylinder.
Water conductivity too high for this
type of steam cylinder.
Select correct steam cylinder
type.
––– –––
E26 Main contactor
jammed
Main contactor jammed in activated
position.
Inspect
main
contac-
tor, replace if necessary.
W27 Foam detection
E27 Foam detection (4
automatic drainings
within 24 hours)
Foaming in steam cylinder.
Drain steam cylinder via drain
key (several times, if necessary).
Check quality of the supply water.
W28 Steam cylinder
needs service
E28 Service interval for
steam cylinder
exceeded
Mineral deposits and/or electrodes
spent.
Steam cylinder Type A: replace
Steam cylinder Type D: clean
Important: After replacement or
cleaning of the steam cylinder, re
-
set the maintenance counter (see
chapter 7.6).
W29 Steam cylinder
needs service
E29 Max. operating
hours of the steam
cylinder reached
Maximum operating hours of the
steam cylinder reached.
Steam cylinder Type A: replace
Steam cylinder Type D: clean
Important: After replacement or
cleaning of the steam cylinder, re
-
set the maintenance counter (see
chapter 7.6).
W36 Standby draining of
steam cylinder
active
––– –––
Automatic standby draining of
steam cylinder active.
No measures must be taken.
W37 Forced draining of
steam cylinder
active
––– –––
Forced draining of steam cylinder
active.
No measures must be taken.
