Blinking Inspection Display - Panasonic U-8ME1E81 Service Manual

WARNING

5. Blinking Inspection Display

Currently the blinking inspection display can be displayed only on the wired remote controller
CAUTION
and system remote controller.
Blinking inspection display (1) (Automatic backup)
Alarm code (Blinking inspection display)
Alarm meaning Automatic backup is in progress. A/C units can be operated.
Status: The compressor at one of the outdoor units where the outdoor unit fan is running should
Alarm conditions When alarm P16, P22, P29, H03, Hx1, Hx2, or H31 has occurred, correcting the control device
(remote controller, etc.) input engages this mode.
Probable cause Because alarm P16, P22, P29, H03, Hx1, Hx2, or H31 has occurred, check the alarm history
then refer to the corresponding items.
Correction Follow the instructions in the corresponding items to correct the trouble.
Recovery After repairing the malfunctioning locations, reset the power for the system (all outdoor units).
Caution: Automatic backup mode will not be canceled until the power is reset.
Notes Automatic backup mode is not engaged in cases of alarms other than those listed above.
Reasons: • T here is no need for automatic backup if recovery is possible by correcting the
be operating.
* Blinking inspection display also occurs when seizing of the compressor magnet SW
is detected. Because this may also be the case, refer to "Blinking inspection display
(compressor magnet SW seizing detection)."
remote controller input.
• W ith alarms for which automatic recovery is possible (such as sensor alarms), the
presence of electrical noise may result in a new alarm. However, it is believed that
this occurs for a comparatively short time only. In these cases, a mode (automatic
backup mode) that limits operation may be engaged.
• C ontrol is not possible when a communications system alarm has occurred.
Automatic backup mode is not engaged in order to avoid causing secondary
damage.
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2WAY SYSTEM
Trouble Diagnosis
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