Actions For Each Number Of Led Blinking; Actions For Led Blinking And Activation Current - LG LTNS16121V /00 Service Manual

5.4 ACTIONS FOR EACH NUMBER OF LED BLINKING

No.
LED 1 time repeated
1
Blink Off Blink Off Blink
LED 6 times repeated
2
Blink Blink Blink Blink Blink Blink
LED 7 times repeated
3
Blink Blink Blink Blink Blink Blink Blink
LED 8 times repeated
4
Blink Blink Blink Blink Blink Blink Blink Blink

5.5 ACTIONS FOR LED BLINKING AND ACTIVATION CURRENT

1. LED blinking 1 time (AD Offset Error)
Blink OFF Blink OFF
Cause: PCB with short circuit, defect part detection.
Purpose: Detect motor voltage or current detection defect.
Actions: Check CC326 voltage, if it's out of the range 2.2~2.8V, PCB must be replaced.
LED Operation Status
Off Blink Off Blink Off Blink Off
Off Blink Blink Blink Blink Blink Blink
Off Blink Blink Blink Blink Blink Blink Blink
Off
Blink Blink Blink Blink Blink Blink Blink Blink
Check
LED blinks 1 time
protection
AD Offset Error
logic
Is it out of specification?
No
Power reset
Blink Off Blink Off Repeated
Off Repeated
Repeated
Off
Off Repeated
Yes
Replace PCB
(2.2-2.8V)
17
Cause Service Tips
AD Offset 1. Check normal operation
Error after power reset.
2. If the same error occurs
again, replace PCB.
Circuit 1. Check normal operation
after power reset.
overcurrent
error
2. If the same error occurs
again, replace PCB.
3. If the same error occurs
twice, replace compressor.
1. Check normal operation
PCB Defect
after power reset.
(IPM)
2. If the same error occurs
again, replace PCB.
1. Check normal operation
Communication
after power reset.
Error
2. If the same error occurs
again, replace PCB.