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B5. 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.
A
Содержание 795.74092.41 Series
Страница 7: ... 7 ...
Страница 23: ... 23 5 CIRCUIT DIAGRAM ...
Страница 24: ... 24 6 TROUBLESHOOTING ...
Страница 25: ... 25 ...
Страница 27: ... 27 7 3 Sub PCB P N EBR76468402 ...
Страница 103: ...625A 623B 616J 623B 616J 603C S04 627B S04 627A S04 603B 619A 617A 616G VALVE WATER TUBE PARTS ...
Страница 105: ...CASE PARTS ...
Страница 106: ...CASE PARTS ...
Страница 110: ...DOOR PARTS ...
Страница 111: ...DISPENSER PARTS 405A 278D 402C 276B 275A 276A 276I 501A 279A 278B 500J 276J 267B 279J 281A ...
Страница 112: ...ICE MAKER ICE BIN PARTS 600A 630F 630B 630A 630H 630G 630C 630Q 630E 630D 611A 612A 630J 606A 630J 607A ...