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56
ENGLISH
Self-Diagnosis Function
Error Indicator
- This function indicates types of failure in self-diagnosis and occurrence of failure for air condition.
- Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as
shown in the table.
- If more than two troubles occur simultaneously, lower number of error code is first displayed.
- After error occurrence, if error is released, error LED is also released simultaneously.
Error Display
1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number.(* = 1: Master, 2: Slave 1, 3: Slave 2)
Ex) 1051 : Error occurrence with error number 105 at No. 1 outdoor unit (=Master unit)
In case of indoor unit error occurrence, the error number is only shown at remote controller
without 7 segment LED of outdoor unit.
Ex) CH → 01 : Error occurrence with error number 01 (at remote controller)
In case of compressor error occurrence, 7 segment LED of outdoor unit control board
will display its error number alternately with compressor number.
Ex) 213 → C23 : It means that compressor error occurred with Error No. 21 at No. 3 Outdoor unit (=Slave 2)
* Refer to the DX-Venitilation manual for DX-Venitilation error code.
Error No. of Compressor
Error No.
Error No. of Unit
Repeat
Display Title Cause of Error
Indoor unit related error
0 1 - Air temperature sensor of indoor unit Air temperature sensor of indoor unit is open or short
0 2 - Inlet pipe temperature sensor of indoor unit Inlet pipe temperature sensor of indoor unit is open or short
0 3 -
Communication error : wired remote controller ↔
indoor unit
Failing to receive wired remote controller signal in indoor unit PCB
0 4 - Drain pump Malfunction of drain pump
0 5 -
Communication error : outdoor unit ↔ indoor unit
Failing to receive outdoor unit signal in indoor unit PCB
0 6 - Outlet pipe temperature sensor of indoor unit Outlet pipe temperature sensor of indoor unit is open or short
08 -
Hydro Kit Hot water storage tank Temperature
sensor
Pipe temperature sensor is open or short
0 9 - Indoor EEPROM Error
In case when the serial number marked on EEPROM of
Indoor unit is 0 or FFFFFF
1 0 - Poor fan motor operation
Disconnecting the fan motor connector / Failure of indoor
fan motor lock
1 1 -
Communication error : Hydro Kit Indoor unit ↔
Inv.PCB
Failing to receive Inv. PCB signal in indoor unit
1 2 - Hydro Kit Inv.PCB error Hydro Kit Inv.PCB error
1 3 - Hydro Kit Solar heat piping temperature sensor error Pipe temperature sensor is open or short
1 4 - Hydro Kit Indoor unit Flow switch error Flow switch flow detection error
1 5 - Hydro Kit Liquid pipe Strange overheat Error Temperature sensor defective or hot water inflow
16 -
Hydro Kit Indoor unit Inlet and Outlet pipe
Temperature sensor Error
Pipe temperature sensor is open or short
17 -
Hydro Kit Indoor unit Inlet pipe Temperature sensor
Error
Outside air Introduction duct Inlet pipe Temperature
sensor Error
Pipe temperature sensor is open or short
18 -
Hydro Kit Indoor unit Outlet pipe Temperature
sensor Error
Pipe temperature sensor is open or short
2 3 0 - Error in refrigerant leakage detection
Occurs when a refrigerant leakage sensor is detecting refrigerant
leakage
237 -
Poor communication between the outdoor unit and
the indoor unit
The indoor unit could not receive the communication signal
from the outdoor unit for at least 3 consecutive minutes
238 -
Poor communication between the controlling part of
the outdoor unit and the indoor unit.
The controlling part of the outdoor unit could not receive the signal
for controlling the indoor unit
Outdoor unit related error
2 1 * Master Outdoor Unit Inverter Compressor IPM Fault Master Outdoor Unit Inverter Compressor Drive IPM Fault
2 2 *
Inverter PCB Input Over Current(RMS) of Master
Outdoor Unit
Master Outdoor Unit Inverter PCB Input Current excess (RMS)
2 3 *
Master Outdoor Unit Inverter Compressor DC Link
Low or High Voltage
System is turned off by Master Outdoor Unit DC Link Low/High
Voltage.
2 4 * Master Outdoor Unit High Pressure Switch System is turned off by Master Outdoor Unit high pressure switch.
1,MFL68980308,영영 2018. 11. 13. 영영 3:24 Page 56
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