IOM SPLIT AHU KIT 0 10V LNS20200113

16 I Installation and Operating Manual
8. MALFUNCTION, ERROR CODE AND SOLVING STEPS
Error Code Malfunction or Protection
E1 communication error with outdoor unit
E5 evaporator coil temperature sensor T2 malfunction
F0 current overload protection
F1 outdoor unit ambient temperature sensor T4 malfunction
F2 outdoor unit condenser pipe temperature sensor T3 malfunction
F3
outdoor unit compressor discharge temperature sensor TP
malfunction
F4 outdoor unit EEPROM parameter error
F5 outdoor unit fan speed is operating outside of the normal range
F6 outdoor unit T2b temperature sensor malfunction
P0 IPM malfunction or IGBT over-strong current protection
P1 over voltage or over low voltage protection
P2 top temperature protection of compressor
P3 outdoor low temperature protection
P4 compressor protection or malfunction
-- multi split indoor units cooling/heating mode conict
P6 low pressure protection of compressor
For troubleshooting, please refer to outdoor unit factory technical
manual and solution.