55
Troubleshooting
9.4 How to
simply c
heck the main part
(1) Malfunction of power supply from indoor unit to outdoor unit
Main inspection point:
Inspect the power supply plug seat with AC voltage gauge to check if the voltage between L and N is within 200VAC~240VAC;
Check with AC voltage gauge if the voltage between N 1and 3 of indoor wiring block is within 200VAC~240VAC;
Flow chart of Malfunction diagnosis
Y
Y
N
N
Y
N
Energize the unit
and wait for 3min
Measure voltage between
N 1and 3 of indoor
wiring block
Voltage > 200V?
Measure voltage
between L and N
of outdoor wiring
block
Normal wiring?
Voltage > 200V?
Indoor main board error
Adjust wiring
Outdoor electric
box error
indoor and outdoor
wiring error
Replace main board
of indoor unit
Replace outdoor
electric box
Replace indoor
and outdoor wiring
Remove malfunction
(2) Indoor fan does not rotate
and there is no
feedback
Main detection point:
z
z
Malfunction diagnosis process:
Is the control panel reliably connected with the motor? Is it loose? Is the connecting sequence correct?
Is the input voltage within the normal range (measure the voltage between L and N of the wiring block XT with AC voltage
gauge.)?
Summary of Contents for GWC09KF-K3DNA5A
Page 24: ...21 FRONT VIEW BOTTOM VIEW Schematic Diagram...
Page 25: ...22 TOP VIEW Schematic Diagram BOTTOM VIEW...
Page 48: ...45 Exploded Views and Parts list 8 2 Outdoor Unit 1 Cooling Only Models Round grill...
Page 50: ...47 Exploded Views and Parts list Square grill...
Page 54: ...51 Square grill...
Page 82: ...79 Removal Procedure 13 Remove Motor Sub Assy 14 Remove Fan Motor Remove Motor Sub Assy 1...
