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For other errors:
The display board may show a garbled code or a code undefined by the service manual. Ensure that this code is
not a temperature reading.
Troubleshooting:
Test the unit using the remote control. If the unit does not respond to the remote, the indoor PCB requires
replacement. If the unit responds, the display board requires replacement.
LED flash frequency:
... ...
Error Display (For Some Outdoor Units)
There are 2 LED lights (RED color and GREEN color) welded in outdoor main board. After power on, LED show
different.
No. Problem LED(GREEN) LED(RED)
Solution
(section)
1 Standby normally
ON OFF -
2 Operate normally
OFF ON -
3 Compressor driven chip EEPROM parameter error
ON FLASH
10.2
4 IPM malfunction or IGBT over-strong current protection
Flash OFF
10.9
5 Over voltage or too low voltage protection
ON ON
10.10
6 Inverter compressor drive error
OFF FLASH
10.11
7 Inverter compressor drive error
Flash LIGHT
10.11
8
Communication error between outdoor main chip and
compressor driven chip
flash FLASH
10.2
****Disclaimer****
The error codes and descriptions are for reference only. If your system displays any of
these codes contact a qualified technician to investigate the matter further.
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