Samsung UQB09JJWC, Service Manual

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Operating Instructions and Installation
Samsung Electronics 3-5
3-2 Outdoor LED Error Display and Check Method
No.
LED Display
Explanation Main Checking Point
Yellow Green Red
1
○ ○ ○
Power off/ VDD NG • Fuse power source
2
○ ○ ◎
IPM Over Current(O.C)
• Input voltage range
• Installation condition
• Outdoor fan motor
3
○ ○ ●
Abnormal Serial communication
• Communication wiring
• Installation condition
○ ● ●
4
○ ◎ ○
Compressor Starting error
• Compressor wire
• Compressor terminal
• Outdoor controller
5
○ ◎ ●
Normal Operation • Operating mode
6
○ ● ○
Compressor Lock error
• Compressor wire
• Compressor terminal
7
○ ● ◎
DC-Link voltage under/over error
• Input voltage range
• DC voltage sensor
8
◎ ○ ◎
Outdoor temperature sensor error(Dual/Single) • PCB pattern & sensor(Open/Short)
9
◎ ○ ●
Discharge over temperature(Dual/Single) • PCB pattern & sensor(Open/Short)
10
◎ ◎ ○
Discharge temperature sensor error(Dual/Single) • PCB pattern & sensor(Open/Short)
11
◎ ◎ ●
Current sensor error • PCB pattern & sensor(Open/Short)
12
◎ ● ○
Compressor Limit error
• EEV
• Gas over charge
13
◎ ● ◎
Coil temperature sensor error(Dual/Single) • PCB pattern & sensor(Open/Short)
14
◎ ● ●
1min. Time out Communication
• Communication wiring
• PCB pattern(Open/Short)
15
● ○ ○
Fan error
• Fan motor
• Connector(CN40 or CN71)
16
● ○ ◎
OTP error • PCB pattern & part(Open/Short)
17
● ○ ●
Compressor rotation error
• Compressor wire
• Compressor terminal
18
● ◎ ○
Operation condition secession(Dual only)
• Installation condition
• Abient temperature
19
● ◎ ◎
DC-Link voltage sensor error • PCB pattern & sensor(Open/Short)
20
● ◎ ●
I_Trip error / PFC Over current
• Input voltage range
• PCBpattern & part(Open/Short)
21
● ● ○
GAS Leak error(Dual/Single) • Piping condition
22
● ● ◎
AC Line Zero Cross Signal out
• Terminal block
• AC zero-crossing circuit block
23
● ● ●
Power ON reset(1sec) • PCB pattern (Open/Short)
24
◎ ○ ○
Capacity miss match • Option code
25
○ ◎ ◎
Test Operation at Cooling Mode • Operating mode
26
◎ ◎ ◎
Test Operation at Heating Mode • Operating mode
● :
LED ON,
○ :
LED OFF,
◎ :
LED BLINK
26006A(2)_1.indd 5 2006-04-14 ｿﾀﾈﾄ 5:12:32