Panasonic OCU-CR200VF5 Service Manual page 25

Troubleshooting for Each Error Code
E 1 8
Indication
1. Communication line anomaly (connector disconnected, terminal disconnected, or wire
broken)
Probable
2. Hardware failure (CS1-PCB, inverter)
Cause
3. Malfunction by noise, etc.
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.
Check
(3) Check if the communication line is broken.
2. Restart power and check if the same problem occurs.
1. Correct the communication line.
(1) Correct the attachment of the connector (2P11) on the CS1-PCB.
Corrective (2) Correct the attachment of the connector (CN14) on the inverter-PCB.
(3) Replace the communication line.
Action
2. Replace the control PCB (CS1-PCB) or the inverter-PCB.
E 1 9
Indication
1. Communication line anomaly
Probable
2. Wrong communication setting
Cause
3. CS1-PCB or controller failed
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.
Check
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.
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")
Corrective
(2) Correctly set the controller.
Action
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.
Detected
Inverter communication anomaly
Content
Detected
Controller communication anomaly
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