Operator`s manual

WRO 300
P/N 3027435 Rev. C
Troubleshooting
37
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
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 WRO 300 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 WRO 300 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 WRO 300 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 the
Tank air vent.
3 The WRO 300 can be restarted bypress-
ing .
4 Otherwise notify technical personnel.