51 PB
TROUBLESHOOTING
Diagnostic Codes
LED Display
Error
Code
Power Timer Running
1 2 3 Content The root cause is may be one of the following
38 BLINK BLINK OFF Indoor EEPROM failure a. The EEPROM chip loose;
b. The indoor control board failed.
39 BLINK BLINK ON Indoor fan motor run
abnormally
a. There is something blocking the indoor fan motor.
b. The fan motor cord connector loose.
c. The fan motor has failed.
d. The indoor control board failed.
41 OFF OFF ON The failure for Indoor
grounding protective
The indoor control board failed.
The failure is detected when the room temperature sensor broken or shorted over 5 sec.
The failure is detected when the temperature sensor of heater exchange broken or shorted over 5 sec.
The failure is detected when each setting data is not match after the EEPPOM self-check two times.
The failure is occur when the grounding signal is not detected after the appliance power ON.
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