25
Indication
E 1 8
Detected
Content
Inverter communication anomaly
Probable
Cause
1. Communication line anomaly (connector disconnected, terminal disconnected, or wire
broken)
2. Hardware failure (CS1-PCB, inverter)
3. Malfunction by noise, etc.
Check
1. Check if anomaly exists in the communication line.
(1) Check if connector (2P11) of CS1-PCB is disconnected.
(2) Check if connector (CN14) of inverter-PCB is disconnected.
(3) Check if the communication line is broken.
2. Restart power and check if the same problem occurs.
Corrective
Action
1. Correct the communication line.
(1) Correct the attachment of the connector (2P11) on the CS1-PCB.
(2) Correct the attachment of the connector (CN14) on the inverter-PCB.
(3) Replace the communication line.
2. Replace the control PCB (CS1-PCB) or the inverter-PCB.
Indication
E 1 9
Detected
Content
Controller communication anomaly
Probable
Cause
1. Communication line anomaly
2. Wrong communication setting
3. CS1-PCB or controller failed
Check
1. Check if anomaly exists in the communication line.
(1) Check if connector (5P2, 5P3) of CS1-PCB is disconnected.
(2) Check if the communication line is broken.
2. Check communication setting.
(1) Check if the refrigeration unit number has been set correctly.
Check if the number is duplicated.
(2) Check if the controller has been set correctly.
Corrective
Action
1. Correct the communication line.
(1) Correct the attachment of the connector (5P2, 5P3) on the CS1-PCB.
(2) Replace the communication line.
2. Redo the communication setting.
(1) Correctly set the refrigeration unit number.
(Other than “0”)
(2) Correctly set the controller.
For more detail, refer to the operating instructions of controller.
3. Replace the CS1-PCB or the controller.
(1) Replace the control PCB
（
CS1-PCB
）
.
(2) Check the operating instructions of controller and if it is failed, replace the controller.
Troubleshooting for Each Error Code
Summary of Contents for OCU-CR200VF5
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