- 73 -
B6. LED blinks seven times, then repeats (IPM Fault: A & E Inverters)
Blink
Blink
Blink
Blink Blink Blink Blink OFF
Protection
logic
Check B
Blink 7 times
(Lock Piston Trip) Check B5
Compressor
Doesn’t work
Y
N
Repeat
Check Procedure
Replace
Drive PCB
N
Y
Check IPM
visual inspection
(turn off)
Short
Test
Point A
Power
Reset
Compressor
Damage
Check C3
Replace
Compressor
NG
Y
Modify
- Purpose: Prevent high current due to IPM Short
- Cause: Damaged IPM (Dead Short)
- Test for a dead short at
Point A
with a VOM.
- Logic: Compressor is forced off and tries to restart in 20 seconds.
Содержание ASTCNA0
Страница 4: ... 4 2 PARTS IDENTIFICATION ...
Страница 16: ... 16 5 CIRCUIT DIAGRAM ...
Страница 18: ... 18 ...
Страница 96: ...P No MFL68488616 SEP 2014 Printed in Korea ...