Panasonic OCU-CR200VF5, Руководство по обслуживанию

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Indication
E 6 4
Detected
Content
Inverter overload (1st to 9th Trip)
Probable
Cause
1. Overload caused excess current exceeding the protection level.
2. Input power supply anomaly (Voltage drop)
Check
1. Check the cause of overload operation.
Check if gas cooler fan motor anomaly (E27, E28) exists.
2. Check if any anomaly exists in the power supply.
(1) Check if any problem exists in the wiring connection of power input (loose terminal,
wire breakage, etc.).
(2) Check if any anomaly existed in the power supply (voltage drop, etc.).
Corrective
Action
1. Eliminate the cause of overload.
When the gas cooler fan motor anomaly (E27 or E28) is present, refer to the description of
error code E27.
2. Eliminate anomaly in the power supply.
(1) Correct the connection of the power input wiring.
(2) Eliminate the cause of power supply anomaly (Repair the power supply unit, etc.).
Troubleshooting for Each Error Code
Indication
E 6 6
Detected
Content
Inverter out of sync (1st to 9th Trip)
Probable
Cause
1. Overload caused out-of-sync
2. Compressor motor is abnormal (locked)
3. Inverter hardware failed
Check
1. Check the cause of overload operation.
Check if gas cooler fan motor anomaly (E27, E28) exists.
2. Check if the compressor motor is abnormal.
Check if the current value is not too high (approx. 10 A in several seconds).
Corrective
Action
1. Eliminate the cause of overload.
When the gas cooler fan motor anomaly (E27 or E28) is present, refer to the description of
error code E27.
2. Eliminate anomaly in the power supply.
(1) Correct the connection of the power input wiring.
(2) Eliminate the cause of power supply anomaly (Repair the power supply unit, etc.).
3. Replace the compressor.
4. Replace the inverter-PCB.