61
Warning
Error
Cause
Remedy
LED
Display
LED
Display
Max. admissible electrode
current exceeded
Max. admissible electrode
current exceeded
–––
Warning
W25A: Excess Current
red
lights
Error
E25A: Excess Current
Drain pump defective.
Inspect drain pump, replace if necessary.
Drain in steam cylinder blocked.
Clean/replace steam cylinder.
Water conductivity too high for this type of
steam cylinder.
Select correct steam cylinder type.
Main contactor jammed
–––
–––
red
lights
Error
E26A: Req.Off Current
Main contactor jammed in activated posi-
tion.
Inspect main contactor, replace if necessary.
Foam detection
Foam detection (4 automatic
drainings within 24 hours)
–––
Warning
W27A: Foam
red
lights
Error
E27A: Foam
Foaming in steam cylinder.
Drain steam cylinder via drain key (sev-
eral times, if necessary). Check quality of
the supply water.
Steam cylinder needs service
Service interval for
steam cylinder exceeded
yellow
lights
Warning
W28A: Cyl. Maintenance
red and
yellow
flash
Error
E28A: Cyl. Maintenance
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, reset the maintenance
counter (see chapter 7.6).
Steam cylinder needs service
Max. operating hours of the
steam cylinder reached
yellow
lights
Warning
W29A: Cyl. Maintenance
red and
yellow
flash
Error
E29A: Cyl. Maintenance
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, reset the maintenance
counter (see chapter 7.6).
Temperature sensor signal
missing
Temperature sensor signal
missing for more than 1 minute
–––
Warning
W32A: Temp.Sensor def.
red
lights
Fehler
E32A: Temp.Sensor def.
No temperature signal present at signal
input.
Check temperature sensor, replace if neces-
sary. Inspect wiring.
Unit locked via Modbus
–––
Warning
W34A: Modbus disable
–––
Module A (B) locked because the corre-
sponding Modbus register is deactivated.
Activate the corresponding Modbus
register.
Modbus Timeout (5 s)
–––
–––
red
lights
Error
E35A: Modbus Timeout
No actual demand or humidity signal
received via Modbus.
Send actual demand or humidity signal.
Standby draining of
steam cylinder active
–––
Warning
W36A: Standby Drain
–––
–––
Automatic standby draining of steam
cylinder active.
No measures must be taken.
Forced draining of
steam cylinder active
–––
Warning
E37A: Forced Drain
–––
–––
Forced draining of steam cylinder active.
No measures must be taken.