78
Alarm
Code
06
Abnormal Inverter Voltage
(Insufcient Inverter Voltage or Overvoltage)
●
The alarm code is ashed on the 7-segment display of the outdoor unit.
●
The alarm code is displayed on the wired controller of the indoor unit.
★
If either insufcient voltage or overvoltage is detected between the terminal R-S on the inverter PCB (Driver
Board) three times in 30 minutes, the operation stops and this alarm code is displayed. If this occurs less than
three times in 30 minutes, the operation is automatically retried.
Start Operation
Check if the wiring of
reactor is looseϋ
Fasten the wiring.
Is the power supply voltage
within the range of ± 10% of
the rated voltage?
Replace the damaged driver
board or fan motor driver
board if faulty.
Check the power supply
voltage and remove the
fault to avoid the voltage
too low or too high.
Is the power supply
voltage higher than 85%
of the rated voltage
during operation?
Is there any other high-
power equipment start
during the operation? Is
the power voltage higher
than 85% of the rated
voltage?
Is the power indicator is
light on when the main
relay indicator is ON?
Yes
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
TROUBLESHOOTING
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