Troubleshooting 5
For other errors:
The display boar
d may show a garbled code or a code undefined by the service manual. Ensu
re 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 f
requency:
... ...
2.2 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
actions when encounter different problems.
No.
Problem
LED(GREEN) LED(RED)
Solution
1
Standby normally
ON
OFF
-
2
Operate normally
OFF
ON
-
3
Compressor driven chip EEPROM parameter error
ON
FLASH
TS19
4
IPM malfunction or IGBT over-strong current protection
Flash
OFF
TS30
5
Over voltage or too low voltage protection
ON
ON
TS31
6
Inverter compressor drive error
OFF
FLASH
TS34
7
Inverter compressor drive error
Flash
LIGHT
TS34
8
Communication error between outdoor main chip and
compressor driven chip
flash
FLASH
TS19
