Operator`s manual

WRO 300 H
P/N 3027436 Rev. C
Troubleshooting
39
5 Troubleshooting
In alarm situations the message text will appear in the display. Only the
latest message will be visible in the display. By using the , or
the display will be unlocked and the alarm list can be scrolled.
The main view will reappear after a time period.
5.1 Alarms and Notifications
5.1.1 General
No.
Alarm and
notifications Definition
101 CONDUCTIVITY
SENSOR FAILURE
WRO 300 H
Buzzer sounds with alarm sound,
flashes, message text displays.
Reason The initial conductivity system check failed.
Action
1 Press , or to silence
buzzer.
2 Check that the product water conductivity
is within normal range. If so, continue as
normal but notify technical personnel.
102 HIGH LEVEL SEN-
SOR FAILURE
WRO 300 H WRO 300 H stops, buzzer sounds with Stop
sound, flashes, message text displays.
Reason Failure of high level sensor in tank.
Action
1 Press , or to silence
buzzer.
2 Notify technical personnel.
103 : N INTERNAL
ERROR
1
1. The number (N) shown before the alarm text identifies which specific kind of
alarm that has occurred. Reference list for those number refer to Service Man-
ual.
WRO 300 H WRO 300 H stops, buzzer sounds with stop
sound, flashes, message text displays.
Reason Control unit failure.
Action
1 Press , or to silence
buzzer.
2 Restart unit, or notify technical personnel.
104 INVALID WATER
LEVEL
WRO 300 H WRO 300 H stops, buzzer sounds with alarm
sound, flashes, message text displays.
Reason Failure of level sensors in tank
Action
1 Press ,
or to silence
buzzer.
2 Check that no water has flooded from
Tank air vent.
3 The WRO 300 H can be restarted by
pressing .
4 Otherwise notify technical personnel.