Emergency operation
If your heat pump has an error, a pop-up window will appear on the screen. In any case you should note down the Error code displayed and inform your installer or authorized service center.
If an electrical heater is connected, Emergency operation might be possible - depending how severe the error is. Refer to the table for more information.
Emergency operation is not automatically restarted after main electricity power is reset.
In normal condition, the product operating information is restored and automatically restarted after main electricity power is reset.
But in emergency operation, automatic re-start is prohibited to protect the product.
Therefore, user must restart the product after power reset when emergency operation has been running.
Error Code List
Critical trouble /Error | Heavy trouble | Slight trouble | Option trouble | ||
|---|---|---|---|---|---|
Description | which can stop system operation,and can be resumed only after certificated professional's check. | Compressor cycle trouble. Emergency mode operation is performed by optional electric heater. | In most case, this trouble is concerned with sensor problems. | A problem is found for Option operation such as water tank heating. | |
Priority1) | 1 | 2 | 3 | 4 | |
Availability of Emergency mode | Heat pump cycle | X | X | O | O2) |
Backup heater | X | O3) | O | O2) | |
Related error codes | 03, 09, 14, 15,16, 20, 232 | 02, 05, 06 | 01, 17, 18, 19, 231 | 08, 13 | |
1) If more than one trouble occurs (“Duplicated trouble”), the trouble with higher priority defines the consequences (whether Emergency operation is possible or not).
2) Operation possible without optional function that has trouble. For instance, when DHW sensor is broken (CH08), hot water heating is not available.
3) Heating operation only. Not possible to use Cooling function.
※ Energy consumption will increase while using Emergency mode. It should not be used for long periods.
Main PCB assembly (Indoor)
Error Code
Description
Main Reasons
01*
Problem in Remote Room Air sensor
Remote air temperature sensor of Main PCB(indoor) is open or short.
02**
Problem in Refrigerant (Inlet side) sensor
Refrigerant inlet pipe temperature sensor of indoor unit is open or short.
03****
Communication error between indoor unit and wired remote controller
Communication between wired remote controller and indoor unit is not possible.
05**
Communication error between Main PCB(Indoor) and Main PCB(Outdoor Cycle)
There is no communication between the Main PCB(Indoor) and the Main PCB(Outdoor cycle).
06**
Problem in Refrigerant pipe sensor(Outlet side)
Refrigerant outlet pipe temperature sensor of indoor unit is open or short.
08***
Problem in Water Tank sensor
Domestic hot water tank temperature sensor of indoor unit is open or short.
09****
PCB Program (EEPROM) Fault
The optional EEPROM is loosely inserted in or disconnected from the Main PCB(Indoor)
13***
Problem in Solar-thermal sensor
Solar pipe temperature sensor of indoor unit is open or short.
14****
Problem in Flow rate
Low flow detection during pump operation
15****
Overheating of water pipe
The temperature of the water pipe has exceeded a certain temperature.
16****
Problems in sensors
An error code 17,18,19 error has occurred at the same time.
17*
Problem in Water-inlet sensor
Water inlet pipe temperature sensor of indoor unit is open or short.
18*
Problem in Water-outlet sensor
Water outlet pipe temperature sensor of indoor unit is open or short.
19*
Problem in Elec/Heater Water-outlet sensor
Electric backup heater outlet temperature sensor of indoor unit is open or short.
20****
Electric heater overheated
Fuse of electric heater is blown due to overheat.
231*
Problem in Water Pressure Sensor
Water Pressure Sensor of indoor unit is damaged.
232*
Problem in Flow Sensor
Flow Sensor of indoor unit is damaged.
Notice of error code
Slight Trouble : *
Heavy Trouble : **
Other Trouble(O-Trouble) : ***
Critical Trouble / Error : ****