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User Guide | Optyma™ iCO2
2.9 Fault message
In an error situation an alarm symbol will flash..
If you push the top button in this situation you can see the alarm report in the display.
Here are the messages that may appear:
Code / Alarm text via data communication
E01 / CDU offline
E02 / CDU communication error
A17 / CDU alarm
A01 / Evap. controller 1 offline
A02 / Evap. controller 2 offline
A03 / Evap. controller 3 offline
A04 / Evap. controller 4 offline
A05 / Evap. controller 5 offline
A06 / Evap. controller 6 offline
A07 / Evap. controller 7 offline
A08 / Evap. controller 8 offline
A09 / Evap. controller 9 offline
A10 / Evap. controller 10 offline
A11 / Evap. controller 11 offline
A12 / Evap. controller 12 offline
A13 / Evap. controller 13 offline
A14 / Evap. controller 14 offline
A15 / Evap. controller 15 offline
A16 / Evap. controller 16 offline
© Danfoss | Climate Solutions | 2023.01 | LCA012A030
Description
Communication lost with CDU
Bad response from CDU
An alarm has occurred in the CDU
Communication lost with evap. controller 1
Communication lost with evap. controller 2
Communication lost with evap. controller 3
Communication lost with evap. controller 4
Communication lost with evap. controller 5
Communication lost with evap. controller 6
Communication lost with evap. controller 7
Communication lost with evap. controller 8
Communication lost with evap. controller 9
Communication lost with evap. controller 10
Communication lost with evap. controller 11
Communication lost with evap. controller 12
Communication lost with evap. controller 13
Communication lost with evap. controller 14
Communication lost with evap. controller 15
Communication lost with evap. controller 16
Action
Check CDU connection and configuration (SW1-2)
Check CDU configuration (SW3-4)
See instructions for CDU
Check Evap. controller controller and connection
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
See A01
BC408445719305en-000101 | 23
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