Lp Idu And Odu Unmatched - Toyotomi KURO Mini Service Manual

TOYOTOMI
Troubleshooting：
Short of refrigerant ? Short of
Compressor 3-phase sequence is
Compressor 3-phase wires are loose or
badly connected?
3.4.24 ―Lp‖ IDU and ODU Unmatched
Error display: ODU mainboard, IDU wired control and IDU receiver light board will display
Error judgment condition and method:/
Possible reason:
■Models of indoor unit and outdoor unit do not match with each other
Troubleshooting：
Turn off the unit and replace with a matched indoor or outdoor unit.
LC Startup failure
System is blocked ?
NO
compressor oil ?
NO
correct or not ?
NO
NO
Error still exists ?
U-Match 5 SERIES UNIT SERVICE MANUAL
YES
Eliminate system failure
YES
Fill refrigerant in . Fill
YES
Connect wires according to
the correct sequence .
YES
Reconnect wires or replace
the compressor wires
Replace the drive board .
YES
Replace the compressor .
62
compressor oil in .
Lp