Troubleshooting Guide

For All 2016 and newer Models: Wall Mount, Concealed Duct / Cassette / Floor Console / Floor
Ceiling):
1) Wall Mounted:
WS009GMF
I22HLD, WS012GMFI22HLD, WS018GMFI22HLD, WS024GMFI22HLD.
2)
C
eiling Concealed:
RB009GMFI
LDFHD, RB012GMFILDFHD, RB018GMFILDFHD, RB024GMFILDFHD.
3) Cassette:
CB009GMFI
LDFHD, CB012GMFILDFHD, CB018GMFILDFHD, CB024GMFILDFHD.
4) Floor Console:
FB009GMFI
LDFHD, FB012GMFILDFHD.
5) Floor / Ceiling:
UB018GMFI
LDFHD, UB024GMFILDFHD.
Operation lamp
Timer
lamp
Display LED STATUS
ODU
Error
★ 1 time
X E0 Indoor unit EEPROM parameter error
——
★ 2 times
X E1 Communication malfunction between indoor and outdoor units
E2
★ 4 times
X E3 Indoor fan speed malfunction
——
★ 5 times
X E4 Indoor room temperature sensor (T1 ) malfunction
——
★ 6 times
X E5
Evaporator coil temperature sensor (T2) malfunction
——
★ 8 times
X EE Water-level alarm malfunction
★ 1 times

F0 Current overload protection
——
★ 2 times

F1 Outdoor ambient temperature sensor (T4 ) malfunction
E4
★ 3 times

F2 Condenser coil temperature sensor (T3) malfunction
E4
★ 4 times

F3 Compressor discharge temperature sensor (T5) malfunction
E4
★ 5 times

F4 Outdoor unit EEPROM parameter error
E0
★ 6 times

F5 Outdoor fan speed malfunction
E8
★ 7 times

F6
Indoor coil outlet pipe sensor(Located on outdoor unit low pressure
valve)
——
★ 8 times

F7
Communication malfunction between Cassette optional lift panel
and the unit.
——
★ 9 times

F8 Cassette optional lift panel malfunction
——
★ 10 times

F9 Cassette optional lift panel not closed
——
★ 1 times ★
P0 Inverter module (IPM) malfunction
P6
★ 2 times ★
P1 Over-voltage or under-voltage protection
E5
★ 3 times ★
P2 High temperature protection of IPM board
——
★4 times ★
P3 Low ambient temperature protection
LP
★ 5 times ★
P4 Compressor drive malfunction
——
★ 6 times ★
P5
(——)
Indoor units mode conflict
——
★ 7 times ★
P6 Low pressure protection
P2
★ flash ,  light, X extinguished