Chigo CCB-18HVR4 - Part 4: Installation

R3250Hz Universal Outdoor Series Technical Manual
131
GD Chigo Heating & Ventilation Equipment Co., Ltd.
9 Troubleshooting
9.1 Single phase unit
Error code display
Error
code
Description
Error
code
Description
E01
Communication fault between
IDU and ODU
P0C Current protection
E02
Zero cross detection fault of IDU
P1x Bus voltage protection
E03
stall fault of indoor fan
P21
Low temperature dehumidication
fault
E04
T2B
(indoor coil outlet temp.)
sensor fault
P22
High and low temp. protection of
evaporator
E08
Mode conflict
P23
High temp. protection of condenser
E09 ODU EEPROM error P24
High and low temp. protection of
environment
E0E IDU EEPROM error P25
High
discharge temperature of
compressor
E11
IDU T1 (room temperature) sensor
fault
P28
Abnormal discharge in commodity
inspection mode
(compressor reversal)
E12
IDU T2 (indoor coil middle temp.)
sensor fault
P29
T3 abnormal in commodity
inspection heating mode
(System exception, 4-
way valve
disconnected)
E13
ODU T3 (outdoor coil outlet
temp.) sensor fault
P30 High pressure protection
E14
ODU T4 (ambient temp.) sensor
fault
P31 Low pressure protection
E15
ODU discharge temp. sensor fault
H1x
Compressor fault
E16
Module temp. sensor fault
H3x PFC fault
E17 Suction temp. sensor fault L01
Lower frequency because of voltage
limit
E18 TZA sensor fault L02
Lower frequency because of high or
low temp. limit of evaporator
E19 TZB sensor fault L03
Lower
frequency because of high
temp. limit of condenser
E2x Fan motor fault L05
Lower frequency because of high
discharge temp. of compressor
L06
Lower frequency because of module
temperature limit
L0C
Lower frequency because of current
limit