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COMMISSIONING
196
Troubleshooting for Error Code
Display
Title
code
Problem in remote
1
room air sensor
Problem in
2
refrigerant (inlet side)
sensor
Problem in
6
refrigerant (outlet
side) sensor
Problem in water
8
tank sensor
Problem in solar pipe
13
sensor
16
Problems in sensors
Problem in water-
17
inlet sensor
Problem in water-
18
outlet sensor
Problem in Electric
19
heater outlet sensor
BLDC Water pump
10
Lock
Bad communication
3
between remote
controller and unit.
Bad communication
5
between Main PCB
assembly(Heater)
and Main PCB
assembly(Inverter) of
the unit.
53
PCB program
9
(EEPROM) fault
Cause of error
• Incorrect connection between
sensor and PCB(Heater).
• PCB(Heater) fault
• Sensor fault
Restriction of BLDC Water pump
• Incorrect connection between
sensor and PCB(Heater)
• PCB(Heater) fault
• Sensor fault
• The connector for transmission is
disconnected
• The connecting wires are
misconnected
• The communication line is broken
• Main PCB assembly(Inverter) is
abnormal
• Main PCB assembly(Heater) is
abnormal
• Electrical or mechanical damage a
the EEPROM
Check point & Normal condition
• Resistance: 10 kΩ at 25 centigrade (unplugged) → for
Remote room air sensor
• Resistance: 5 kΩ at 25 centigrade (unplugged) → for all
sensors EXCEPT remote room air sensor
• Voltage: 2.5 V DC at 25 centigrade (plugged) (for all
sensors)
• Refer resistance-temperature table to check in
different temperature
• BLDC Water pump defect / assembly condition
abnormal
• Fan lock by foreign material
• Wire connection between remote controller and Main
PCB assembly(Heater) should be tight
• Output voltage of PCB should be 12 V DC
• Wire connection between remote control panel and
Main PCB assembly(Heater) should be tight.
• This error can not be permitted
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