Manual Ozone Generating System
SMOevo
PLUS
Troubleshooting
Manual_SMOevoPLUS_eng_01.2019.doc
page 149 of 179
Message
No.
Message shown on the display
Description /
Possible Cause
Countermeasures
105
Warning ozone ambient air sensor lifetime
critical - Replace sensor
Lifetime of the ambient air sensor
has elapsed.
Sensor must be replaced to
ensure system operation.
Order and replace new sensor.
Time to exchange approx. 4 weeks
Check the error message on the
display and take countermeasures
in accordance with the operating
instructions of the unit.
Refer to
manufacturer’s manual.
109
Warning feed gas dew point out of range -
Replace sensor
Dew point sensor defective.
Order and replace new sensor.
113
Warning setpoint corrected due to limits.
The calculated setpoints are not
within tolerance. The system
corrects to min / max setpoints.
Check Required Ozone Mass
setting.
Change setpoint, if necessary, to
operate the system with more
reasonable setpoints.
117
Warning dose trim out of range. Check
settings
The trim frunction has reached its
min / max correction value and
does not operate within operation
range.
Check Dose setpoint.
Change Dose setpoint, if
necessary, to operate the system
with more reasonable setpoints.
121
Warning fault heater element ozone
destructor
Overload of heater elements.
Current relay energized.
Contact regional Wedeco Service
.
Refer to Chapter Contact Addresses
.
129
SYS:AI100 Alarm signal fault ozone
concentration ambient air
Signal < 4 mA or signal > 20 mA.
Cable breakage.
Measuring device or transducer
input to PLC defective.
Calibrate ambient air sensor.
Replace, if necessary.
Check cables and connections.