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Message
Message shown on the display
No.
PSU:DI21.0 Alarm cabinet temperature high
73
PSU:DI21.1 Alarm fault air condition 1
74
PSU:DI21.2 Alarm fault air condition 2
75
PSU:DI21.3 Alarm fault air condition 3
76
PSU:DI21.4 Alarm cabinet door open
77
Manual_SMOevoPLUS_eng_01.2019.doc
Manual Ozone Generating System SMOevo
Description /
Possible Cause
Temperature in cabinet too high.
Cable break.
Ambient temperature too high.
Fault message from air condition.
Cable break.
Incorrect wiring.
Eco mode activated on Rittal air-
condition.
Fault message from air condition,
Cable break,
Incorrect wiring.
Eco mode activated on Rittal air-
condition.
Fault message from air condition,
Cable break.
Incorrect wiring
Eco mode activated on Rittal air-
condition.
Cabinet door open.
Cable break.
PLUS
Troubleshooting
Countermeasures
Check cabinet temperature.
Check temperature probe.
Check function of chiller.
Refer to
manufacturer's manual.
Check cables and connections.
Check the fault message on the
display, take countermeasures
according to the operating
instructions of the unit,
refer to
manufacturer's manual.
Check the fault message on the
display, take countermeasures
according to the operating
instructions of the unit,
refer to
manufacturer's manual.
Check the fault message on the
display, take countermeasures
according to the operating
instructions of the unit,
refer to
manufacturer's manual.
Close door.
Check door switch.
Check cables and connections.
page 147 of 179
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