Panasonic CU-4E23QBR Service Manual page 60

CU-4E27QBR 5E34QBR
LED 2 3 4 5
Room A B C D
All flashing
LED2, 4, 6 and LED 3, 5
alternatively flashing
Flashing one after
another
Other than above

If automatic correct is impossible, check the indoor
unit wiring and piping manually.
NOTE:
1. For two rooms, LED 4 and 5 are not illuminated and for three rooms, LED 5 is not illuminated after wiring
operation complete. (CU-4E23QBR)
2. For two rooms, LED 4,5 and 6 are not illuminated, for three rooms, LED 5 and 6 are not illuminated and for
four rooms, LED 6 is not illuminated after wiring operation complete. (CU-4E27QBO and CU-5E34QBR)
3. If the outdoor air temperature is less than 5°C or unit has abnormality, wiring operation will not start.
4. After wiring check operation is complete, LED indication will illuminated until normal operation starts.
5. Follow the product diagnosis procedure. (Check the diagnostic label at the control board cover.)
6. When LED 1 only illuminate, indicates that outdoor unit is operating normally.
15.1.4 Power Save Mode

Power Save Mode can be enabled by pushing POWER SAVE switch (SW4) to ON before power supply ON.

When Power Save Mode is ON, the unit can be operate at lower running current where the breaker capacity not
achieve the requirement.
15.1.5 Mode Priority Function

Mode priority function can be enabled by pushing MODE PRIORITY switch (SW5) to ON before power supply
ON.

When Mode Priority Function is ON, the mode priority is given to higher capacity indoor units.
6 Message
E
Automatic correction impossible
Wiring check in progress
Automatic correction completed
Unit has abnormality (Note 4)
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