Operator`s manual
WRO 300 H
P/N 3027436 Rev. C
Troubleshooting
41
5.1.3 Heat
205 LOW REJECTION
RATE
WRO 300 H When entering standby mode, buzzer sounds
with notification sound, flashes, message
text displays.
Reason Decreased membrane performance.
Action
1 Press , or to silence buzzer.
2 Perform cleaning according to local proce-
dures.
3 If problem persists notify technical person-
nel.
206 LOW PRODUCT
FLOW
WRO 300 H When entering standby mode, buzzer sounds
with notification sound, flashes, message
text displays.
Reason The product water flow is below the preset noti-
fication limit which indicates that the perform-
ance of the membrane is reduced.
Action
1Press ,
or to silence buzzer.
2 Perform cleaning according to local proce-
dures.
3 Notify technical personnel.
No.
Alarm and
notifications Definition
301 INSUFFICIENT
HEAT
WRO 300 H WRO 300 H stops, buzzer sounds with
alarm sound, flashes, message text
displays.
Reason Power failure.
Action
1 Press , or to silence
buzzer.
2 Press until light goes on. The
WRO 300 H either goes to standby or an
active Cooldown.
302 INSUFFICIENT
WATER SUPPLY
WRO 300 H WRO 300 H stops, buzzer sounds with
alarm sound, flashes, message text
displays.
Reason Lack of feed water.
Action
1 Press , or to silence
buzzer.
2 Check the feed water supply.
3 Check for leakage.
4 Restart by pressing .
5 Notify technical personnel if problem per-
sists.
No.
Alarm and
notifications Definition










