Modern CHIGO air conditioners have a developed self-diagnosis system, according to the results of which the control system, upon detection of a malfunction, blocks the operation of the entire device and at the same time reports the cause of the malfunction.
See also: Chigo Air Conditioner Service Manuals
The CHIGO air conditioning control system reports any malfunctions by flashing the LED on the panel of the indoor unit. If one or another malfunction of the air conditioner is detected, the LEDs light or flash in a certain sequence, which corresponds to the detected error. If the control system of the air conditioner has detected more than one error, then the fault with the highest priority is displayed first, and then all the others.
The codes of malfunctions (errors) of CHIGO air conditioners are given in the table:
Error codes for wall split systems
|
Problems |
Display |
Display |
LCD |
|
Indoor unit |
RUNNING LAMP |
TAMER LAMP |
|
|
Room temperature sensor |
blinks 1 \ lights 8 sec |
glows |
E2 |
|
Evaporator Temperature Sensor |
blinks 2 \ lights 8 sec |
glows |
E3 |
|
Air conditioner overheating |
blinks 3 \ lights 8 sec |
glows |
E8 |
|
Pump (Overflow) |
blinks 4 \ lights 8 sec |
glows |
E9 |
|
Fan motor |
blinks 6 \ lights 8 sec |
glows |
E5 |
|
No communication with external unit |
7 blinks / 8s |
glows |
E7 |
|
Lid not closed |
glows |
blinks 3 \ lights 8 sec |
E0 |
|
Condenser temperature sensor |
glows |
blinks 4 \ lights 8 sec |
E1 |
|
EEPROM does not work |
glows |
blinks 6 \ lights 8 sec |
E6 |
For three-phase systems
|
Problems |
Display |
Display |
LCD |
|
External Block |
RUNNING LAMP |
TAMER LAMP |
|
|
Outdoor temperature sensor |
glows |
blinks 1 \ lights 8 sec |
E2 |
|
Pipe temperature sensor |
glows |
blinks 2 \ lights 8 sec |
E3 |
|
Compressor overheating |
glows |
blinks 3 \ lights 8 sec |
E7 |
|
|
glows |
blinks 4 \ lights 8 sec |
E1 |
|
No inter-unit communication |
glows |
blinks 6 \ lights 8 sec |
E6 |
|
|
glows |
7 blinks / 8s |
E5 |
Indication of malfunctions of cassette conditioners
|
Error decoding |
Indication |
|
Defrost |
blinks 1 time \ does not light up 1 second. |
|
Frost protection |
flashes 1 time \ does not light for 3 seconds. |
|
Room temperature sensor |
blinks 2 times \ does not glow for 4 seconds. |
|
Pipe temperature sensor |
flashes 3 times \ does not light up for 5 seconds. |
|
Error from external unit |
blinks 4 times \ does not light up for 6 seconds. |
|
Block frost protection |
blinks 5 times \ does not light up for 7 seconds. |
|
Low pressure protection |
blinks 6 times \ does not light up for 8 seconds. |
|
Power Protection for External Unit |
blinks 7 times \ does not light up for 9 seconds. |
|
overheat protection |
blinks 8 times \ does not light up 10 seconds. |
|
Condensation overflow protection |
flashes 9 times \ does not light for 11 seconds. |
Indication of malfunctions of ducted air conditioners
|
Malfunction |
Alarm Code |
|
|
E1 |
|
abnormal sensor temperature |
E2 |
|
Room temperature sensor |
E3 |
|
Error from external unit |
E4 |
|
No inter-unit communication |
E7 |
|
Overheat / frost protection |
E8 |
|
|
E9 |
Chigo: Error codes for columned air conditioners
| Malfunction |
Display |
|
No inter-unit communication |
E1 |
|
Room air temperature sensor |
E2 |
|
Evaporator Temperature Sensor |
E3 |
|
Low pressure protection |
E4 |
|
Phasing error |
E7 |
|
overheat protection |
E8 |
|
Error from external unit |
E9 |
Chigo: Fault codes for subceiling split systems
|
Malfunctions |
Indication |
|
Defrost mode |
blinks 1 time \ does not light up 1 second. |
|
Frost protection |
blinks 1 time; does not light for 3 seconds. |
|
Room temperature sensor |
2 times blinks \ do not glow for 4 seconds. |
|
Evaporator Temperature Sensor |
3 times blinks / do not glow for 5 seconds. |
|
Outdoor unit error |
4 times blinks \ do not glow for 6 seconds. |
|
Anti-freeze protection of indoor unit |
blinks 5 times \ does not glow for 7 seconds. |
|
Low Pressure Error |
blinks 6 times \ does not glow for 8 seconds. |
|
External unit power failure |
blinks 7 times \ does not glow for 9 seconds. |
|
overheat protection |
blinks 8 times \ does not glow for 10 seconds. |
|
Condensate overflow accident |
blinks 9 times / does not light for 11 seconds. |
Chigo: CMD intelligent vulti connected series
|
Malfunctions |
Indication |
|
Internal air temperature sensor |
E2 |
|
Evaporator Temperature Sensor |
E3 |
|
Error from external unit |
E4 |
|
Fan motor failure |
E5 |
|
Defrost mode |
E6 |