Fault Isolation Procedure - Honeywell LMB HYPER 120-03 Component Maintenance Manual With Illustrated Parts List

D. Fault Isolation Procedure
DEFECT
1. Insulation Resistance Test (Ref. SUBTASK 21-22-91-750-001-A01)
Insulation Test
R < 10 megohms
The document reference is online, please check the correspondence between the online documentation and the printed version.
COMPONENT MAINTENANCE MANUAL
POSSIBLE CAUSE
Incorrect insulation between the
mechanical ground and the detection
board (01-450).
Incorrect insulation between the
mechanical ground and the motor phases.
Incorrect insulation between the
mechanical ground and the electronic
boards.
00001059
Replace the detection board (01-450).
Remove the detection board
(01-450) (Ref. SUBTASK
21-22-91-030-001-A01).
Install the detection board
(01-450) (Ref. SUBTASK
21-22-91-430-001-A01).
Replace the equipped housing
(01-640).
Remove the equipped housing
(01-640) (Ref. SUBTASK
21-22-91-010-005-A01).
Install the equipped housing
(01-640) (Ref. SUBTASK
21-22-91-410-001-A01).
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).
21-22-91
CORRECTION
Page 1015
Dec 15/06