Troubleshooting; Fault Codes Table - Chigo CCB-18HVR4 Technical Manual

R3250Hz Universal Series Technical Manual

12 Troubleshooting

12.1 Fault codes table

Table 1: indoor unit digital display and wired controller
Display
E0
Communication error between
E1
outdoor unit andindoor unit
Indoor room temperature (T1)
E2
Indoor coil middle temperature
E3
Indoor coil outlet temperature
E4
(T2B) sensor error
E5
E6 Zero speed protection
E7
Indoor fan motor speed lose
E8
Wired controller communication
E9
EE Water level alarm error
P0
P1
P2
Primary/secondary
P3
overcurrent protection
Exhaust temperature
P4
over-high protection
Outdoor unit condenser
outlet (T3) temperature
P5
over-high protection
Compressor driver error or
P6
P7
P8
Outdoor unit DC fan motor
P9
104
Error description
Phase protection
sensor error
(T2) sensor error
Outdoor unit error
EERPOM error
protection
error
(reserve)
(reserve)
(reserve)
IPM protection
(reserve)
(reserve)
error
Display
F0
F1
F2
Outdoor unit current error cannot
F3
Display P3 error for 3 times within
Outdoor temperature (T4) sensor
F4
F5
Outdoor unit condenser outlet
F6
Secondary side current
F7
F8 Heat T2 temp. protection
F9 Outdoor unit voltage error
EF
Communication error between
H0
outdoor unit mainboard and
H1
H2
H3
3 times of P6 error within 30
H4
3 times of P2 error within 30
H5
3 times of P4 error within 100
H6
H7
H8
2 times of P9 error within 10
H9
GD Chigo Heating & Ventilation Equipment Co., Ltd.
Error description
(reserve)
(reserve)
(reserve)
recover
60 minutes
error
(reserve)
(T3) sensor error
protection
EF(Reserve)
driver board
(reserve)
(reserve)
(reserve)
minutes
minutes
minutes
(reserve)
(reserve)
minutes