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COMPONENT MAINTENANCE MANUAL
00001059
DEFECT
POSSIBLE CAUSE
CORRECTION
4. Start-up Current Test (Ref. SUBTASK 21-22-91-750-004-A01)
Start-up input
current > 40 A
The impeller (01-010) is jammed
Disassemble the fan completely
to find the defective part (Ref.
DISASSEMBLY).
Replace the defective part.
Assemble the fan (Ref. ASSEMBLY).
The electronic boards are defective.
Replace the power board (01-370).
Remove the power board
(01-370) (Ref. SUBTASK
21-22-91-010-004-A01) or (Ref.
SUBTASK 21-22-91-010-004-B01).
Install the power board (01-370) (Ref.
SUBTASK 21-22-91-410-002-A01).
Replace the control board (01-330).
Remove the control board
(01-330) (Ref. SUBTASK
21-22-91-010-003-A01) or (Ref.
SUBTASK 21-22-91-010-003-B01).
Install the control board
(01-330) (Ref. SUBTASK
21-22-91-410-003-A01) or (Ref.
SUBTASK 21-22-91-410-003-B01).
Replace the filter board (01-170).
Remove the filter board
(01-170) (Ref. SUBTASK
21-22-91-040-001-A01) or (Ref.
SUBTASK 21-22-91-040-001-B01).
Install the filter board (01-170) (Ref.
SUBTASK 21-22-91-440-001-A01).
The adjustment of the detection board
(01-450) is not correct.
Adjust the position of the detection
board (01-450) (Ref. SUBTASK
21-22-91-820-001-A01).
21-22-91
Page 1018
Dec 15/06
The document reference is online, please check the correspondence between the online documentation and the printed version.