Indoor Unit & PCB test board Error Display.
DISPLAY
LED STATUS
PAGE
Not Operating
No operation by use of remote control
3 to 6
E0
EEPROM parameter error
7
E1
Indoor / outdoor units communication protection
8 to 17
E3
Indoor Unit Fan Stall
30 & 31
E5
Open or short circuit of outdoor condenser pipe & compressor temperature sensors 18 & 19
E52
Open or short circuit of outdoor ambient temperature sensor
18 & 19
E6
Open or short circuit of room or evaporator temperature sensor
20
L2 & PA
High-temperature protection of condenser
21 & 22
P0
Module protection
23 & 24
P1
Over voltage or too low voltage protection
25
P2
Temperature protection of compressor top - low refrigerant charge
26 & 27
P4
Inverter compressor drive error
28& 29
LO & P91
Evaporator high-frequency low-temperature limit
30 & 32
Page 2 KSSSI90