Error Codes - Grant Aerona3 Series Installation And Servicing Instructions

11.4 Error Codes

Error
Error
code
Power supply
Fuse CF1
HPID6: 250V 15A
HPID10: 250V 25A
HPID16: 250V 30A
- - Fuse CF3
(250V 3A)
Fuse CF4
HPID6: 250V 3A
HPID10: 250V 3A
Main PCB
Fan motor
Fuse CF6
HPID16: 250V 3A
Fuse CF7
HPID10: 250V 3A
HPID16: 250V 3A
A0 DC voltage error
Pump
Reactor
Main PCB
Power supply
Sensor, Temp.
Discharge
Discharge
A1
temperature error
Gas leakage
Unreasonable
operation under/
overload
Protective action
Drop of power
against excess
voltage
A2
Current DC current
Main PCB
detection
Momentary stop of
power
(In case of lightning)
Compressor
A3 CT disconnection Main PCB
Unreasonable
operation under/
overload
Protective action
against excess
A4
Drop of power
Current AC current
voltage
detection
Momentary stop of
power (In case of
lightning)
Section 11: Fault Finding
Method of check
Check the power supply
Check the electric continuity of Fuse CF1 by
tester
Check the electric continuity of Fuse CF3 by
tester
Check the electric continuity of
Fuse CF4 by tester
Other than described above
Operate without lead wire for Fan motor
Check the electric continuity of Fuse by tester
Operate without lead wire for
Pump
Check the resistance by tester
(0.1Ω at 20°C)
Check the voltage of Fan motor by tester
Check the voltage of Pump by tester
Check the power supply
Check the resistance by tester
Check the service valve and refrigerant circuit
(pipe)
Check the place of installation (blockage of
air inlet & outlet)
Check the excess gas
Check the power voltage
(230V)
Operate without the junction connector of
Compressor lead wire
-
Other than described above
-
Check the place of installation (blockage of
air inlet & outlet)
Check the excess gas
Check the power voltage
(230V)
-
Troubleshooting
Confirm the power supply
If CF1 is blown, Main PCB should be
replaced
If CF3 is blown, Main PCB should be
replaced
If CF4 is blown, Main PCB should be
replaced
Main PCB should be replaced
If the same error code appears again,
Main PCB or Pump should be replaced
If other error codes appear, Fan motor
should be replaced
If CF6 is blown,it should be replaced
If CF7 is blown,it should be replaced
If the same error code appears again,
Main PCB or Fan motor should be replaced
If other error codes appear, Pump should be
replaced
If the reactor is faulty, is should be replaced.
If the voltage is abnormal, PCB (Main should
be replaced
Confirm the power supply
If the sensor is faulty, it should be replaced
Collect refrigerant once, then recharge with
prescribed mass
Ensure the installation position to avoid
blockage of air inlet & outlet
If excess gas is observed, collect all
refrigerant once, then recharge with
prescribed mass
Confirm the power supply voltage
(230V)
If the same error code appears again,
Main PCB should be replaced
Restart operation
Compressor should be replaced
Main PCB should be replaced
Ensure the installation position to
avoid blockage of air inlet & outlet
If excess gas is observed, collect all
refrigerant once, then recharge with
prescribed mass
Confirm the power supply voltage
(230V)
Restart operation
Figure/ Error
table reset
-
Figure
-
1 1-3
-
-
Figure
1 1-4
Power
OFF
-
-
Figure 1 1-
4, 1 1-6
-
Figure
1 1-13
Auto
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Manual
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