|Alarm Code||H03, H13, H23|
|Alarm meaning||Compressor 1 CT sensor disconnected or short-circuit; Compressor 2 CT sensor disconnected or short-circuit; Compressor 3 CT sensor disconnected or short-circuit|
Compressor 1: Current value of more than 18.0 A is detected while the compressor 1 is stopped.
Compressor 2 & 3: Current value at compressor 2 and 3 is less than 2.0 A when 2 seconds or more had passed after the compressors began operation and output.
1. CT circuit failure, PCB failure
2. Crossed wiring or installation error
3. If the cause is still unknown after checking the above, then it is possible that noise is the cause of the trouble. It is necessary to connect a PC or other instrument.
|Notes||Use a normal CT as a tool to determine whether the trouble is a PCB failure or CT failure.|