Troubleshooting; Outline Of Failure Diagnosis - Hitachi RCUE40AG1-400AG1 Service Manual

1 TROUBLESHOOTING

1.1. OUTLINE OF FAILURE DIAGNOSIS

In the case of abnormality, alarm lamp of remote control and alarm LED on the control panel are ON. And segment indication on
the control panel is flickering. For stopping the unit, put it into stop operation without power OFF.
Segment Indication:
Abnormality Code Flickering.
Alarm Indication: ON
(Local Side)

NOTE:
- After the stop operation, alarm indication is turned off and initial status 88 is displayed. And then abnormality code, which
activated before is indicated by "Indication Mode of Alarm Occurrence Data".
- When the power turns off and turns on, the indication is initial status. And then abnormal code, which activated before is
indicated by "Indication Mode of Alarm Occurrence Data"
Alarm occur
Stop Operation
Yes
Is abnormality code
in segment indication
confirmed?
No
Abnormality code is indicated
by indication mode of alarm
Occurence Data.
Abnormality code is indicated
in the segment indication.
Take proper measure
according to the alarm position
TROUBLESHOOTING
Remote Control Run Indication:
ON
Remote Control Alarm Indication: ON
(Remote Side)
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