Trouble Shooting; Fault Codes Table - Chigo CCB-18HVR4 Technical Manual

R3250Hz Universal Outdoor Series Technical Manual

12. Trouble shooting

12.1 Fault codes table

Table 1: Indoor unit (digital display)
When unit is standby after first time power on, running light flash slowly, after operation, all the lights off
when the unit is off or standby.
When unit is running, running light flashes, digital tube shows setting temperature in cooling and heating
mode, digital tube shows indoor temperature in fan only mode; defrost light turns on when defrosting, timer
light turns on when in timer mode.
Display
E0
Communication error between
E1
outdoor unit and indoor unit
Indoor room temperature (T1)
E2
Indoor coil middle temperature (T2)
E3
Indoor coil outlet temperature
E4
E5
E6
E7
Indoor fan motor speed lose
E8
Wired controller communication
E9
EE Water level alarm error
Table 2: Indoor unit (LED display)
Indoor unit waiting for address assignment
(reserve)
Communication error between outdoor unit and indoor unit LED timer flash quickly
Fan motor stall protection
Indoor unit temperature sensor error
Water level alarm
(reserve)
Outdoor unit error
EEPROM error
45
Error description
Phase protection
sensor error
sensor error
(T2B) sensor error
Outdoor unit error
Zero speed protection
EERPOM error
protection
error
Error description
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
LED timer and running flash together
LED timer, running, protection, defrost
flash together
LED timer flash slowly
LED run flash
LED protection flash
LED defrost flash
LED protection flash slowly
LED defrost flash slowly
GD Chigo Heating & Ventilation Equipment Co., Ltd.
Error description
(reserve)
(reserve)
(reserve)
recover
60 minutes
error
(reserve)
(T3) sensor error
protection
EF(Reserve)
Display
content