Service Guide
Table Of Contents
32
12. Failure code
Failure code at wired
controller
（
hex
）
PCB LED5(Indoor Units)/
Receiver Timer Lamp(Remote
Controller)
Fault Descriptions
01 1 Indoor ambient temp. sensor TA failure
02 2 Indoor coil pipe temp. sensor TC1 failure
03 3 Indoor coil pipe temp. sensor TC2 failure
05 5 Indoor EEPROM failure
06 6 Communication between indoor and outdoor failure
07 7 Communication between indoor and wired controller failure
08 8 Indoor float switch failure
09 9 Indoor address repeated failure
0C 12 Indoor unit 50Hz Zero-crossing failure
0E 14 DC motor failure
12 18 The 4-way valve of 3-pipe valve box reversing failure
20 Outdoor failure code