60 PB
TROUBLESHOOTING
Diagnostic Codes
Indoor Unit
Error
Code
Content The root cause is may be one of the following
36 Communication failure between the indoor unit
and outdoor unit
a. the communication cable connector loose.
b. the connection between the filter board and the terminal is incorrect or loose.
c. the communication cable failed.
d. the connection between the filter board and the outdoor control board is incorrect or
loose.
e. the indoor control board failed.
f. the PFC board failed.
g. the power board failed.
h. the outdoor control board failed.
38 Indoor EEPROM failure a. The EEPROM chip loose;
b. The indoor control board failed.
39 Indoor fan motor runs abnormally. a. Something blocking the indoor fan motor.
b. The fan motor cord is disconnected or loose.
c. The fan motor failed.
d. The indoor control board failed.
41 The failure for Indoor grounding protection. The indoor control board failed.
77 Wi-Fi Connection Enabled Cycle Power on/off