Main
CONTENTS
Page
1. Safety Precautions
1.1 Cautions in Repair
Page
1.2 Inspections after Repair
Service Manual 7
Part 1 General Information
2. Nomenclature
2.1 Global Model Name
AS W1264GG1
12 - 345678910
Page
1. List of Functions & Controls
2. Basic Mode Controls
2.1 Cooling Mode
2.2 Heating Mode
2.3 Healthy Dehumidification operation
2.4 Automatic operation
2.5 Auto changeover operation
3. Special Mode Controls
3.1 Jet Cool operation
3.2 Jet Heat operation
3.3 Energy saving operation in cooling mode
4. Utility Functions
4.1 Forced operation
4.2 Auto cleaning operation
120
8
4.3 Air volume control
NOTE: Some Models are different by swing width and swing pattern.
4.4 Natural Air Control(Auto Wind)
4.5 Chaos Swing
LL Very low, In heating mode L Low M Med H High SH Super high Auto Natural wind
4.6 Sleep mode Auto control
4.6.1 Sleep timer operation for cooling cycle
4.6.2 Sleep timer operation for heating cycle
4.7 Auto restart
5.1 Five Seconds Stand-by (fan)
5. Protection Functions & Controls
5.5 Automatic defrost
5.5.1 9,12kBtu/h Model
Page
Page
5.6 Power Relay Control
5.7 Inverter
5.8 Overheating Protection (Power Module)
5.8.1 9,12kBtu/h Model
22 Room Air Conditioner
5.8.2 18,24,30kBtu/h Model
Function
Heat sink sensor failure error
Heat sink temperature control
5.9 Total Current Control (Over Current Protection)
5.9.1 9,12kBtu/h Model
5.9.2 18,24,30kBtu/h Model
5.10 DC Peak control
5.10.1 DC Peak Current Error by a fault signal of IPM
5.10.2 DC Peak Current Error by the compressor lock
5.10.3 DC Peak Current Error by the Outdoor Fan Lock
5.11 Discharge Pipe Temp Control
5.11.2 Inverter Compressor (18,24,30kBtu/h Model)
5.11.3 Constant Compressor (only 30kBtu/h Model)
5.12 Low Ambient control
5.12.1 9,12kBtu/h Model
5.12.2 18, 24, 30kBtu/h Model
5.14 Oil equalizing control(30kBtu/h Model)
5.13 Oil return control(30kBtu/h Model)
5.13.1 Operating Contion
5.13.2 Operation Process
Page
1. Check before Test Run
2. Test Run Flow chart
Service Manual 33
Part 3 Test Run
3. Test Run Detail
Settlement of outdoor unit
Evaluation of the performance
Page
1. 2-Way, 3-Way Valve
2. Pumping Down
Service Manual 37
Part 4 Trouble Shooting
3. Evacuation (All amount of refrigerant leaked)
Vacuum pump
Procedure
4. Gas Charging (After Evacuation)
Service Manual 39
Part 4 Trouble Shooting Trouble analysis
5. Cycle Troubleshooting Guide
NOTICE
Service Manual 41
Part 4 Trouble Shooting The Product doesnt operate at all. (9~30kBtu/h Model)
6. Electronic Parts Troubleshooting Guide
Trouble 1
42 Room Air Conditioner
Part 4 Trouble Shooting
Trouble 2
Product doesn't operate with the remote controller. (9~30kBtu/h Model)
Trouble 3
Trouble 4
Service Manual 45
Part 4 Trouble Shooting When indoor Fan does not operate.(9~30kBtu/h Model)
Trouble 5
46 Room Air Conditioner
Part 4 Trouble Shooting
7. Self-diagnosis Function
Error Indicator
9, 12kBtu/h Model
Service Manual 47
Part 4 Trouble Shooting 18,24,30kBtu/h Model Indoor Error
Contents
Case of error
Outdoor Error
Case of error
LED02G (Green)
Contents
LED01G (Red)
Error code
Troubleshooting Guide(9,12kBtu/h Model)
Page
Service Manual 51
Part 4 Trouble Shooting
Error code
Description Cause of error
Earth port
V
U W
Page
8
Description Cause of error
Error code
Description Cause of error
Indoor fan is locked (BLDC fan model only)
10
56 Room Air Conditioner
Part 4 Trouble Shooting 1) Troubleshooting CH01, CH02, CH06
Troubleshooting Guide(18,24,30kBtu/h Model)
2.5VDC
10k
Check the resistance Check the voltage
Service Manual 57
Part 4 Trouble Shooting 2) Troubleshooting CH05, CH53
58 Room Air Conditioner
Part 4 Trouble Shooting 3) Troubleshooting CH21
Service Manual 59
Part 4 Trouble Shooting 4) Troubleshooting CH21, CH22
+
-
+- +-
60 Room Air Conditioner
Part 4 Trouble Shooting 5) Troubleshooting CH23, CH28
Service Manual 61
Part 4 Trouble Shooting 6) Troubleshooting CH24, CH25
62 Room Air Conditioner
Part 4 Trouble Shooting 7) Troubleshooting CH26, CH27
Service Manual 63
Part 4 Trouble Shooting 8) Troubleshooting CH32, CH33, CH40
64 Room Air Conditioner
Part 4 Trouble Shooting 9) Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65
Service Manual 65
Part 4 Trouble Shooting 10) Troubleshooting CH51, CH60
66 Room Air Conditioner
Part 4 Trouble Shooting 11) Troubleshooting CH61, CH62