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4. Blinking Inspection Display
2WAY SYSTEM
Trouble Diagnosis
6
Currently the blinking inspection display can be displayed only on the wired remote controller
and system remote controller.
Blinking inspection display (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
be operating.
Alarm conditions
When alarm H01, H03, H05, H07, H08, H11, H13, H15, H21, H27, H31, P03, P16, P17, P19,
P22, P24, P26, P29, F04 ~ F08, F12 ~ F24 has occurred, correcting the control device (remote
controller, etc.) input engages this mode. See the Section2.
Probable cause
Because alarm H01, H03, H05, H07, H08, H11, H13, H15, H21, H27, H31, P03, P16, P17, P19,
P22, P24, P26, P29, F04 ~ F08, F12 ~ F24 has occurred, check the alarm history then see 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: • There is no need for automatic backup if recovery is possible by correcting the
remote controller input.
• With 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.
• Control is not possible when a communications system alarm has occurred.
Automatic backup mode is not engaged in order to avoid causing secondary damage.
WARNING
CAUTION
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