Honeywell LMB HYPER 120-03 Component Maintenance Manual With Illustrated Parts List page 57

DEFECT
3. High Speed & Low Speed Selection Test (Ref. SUBTASK 21-22-91-750-003-A01)
The fan does not
operate at the
selected speed.
The document reference is online, please check the correspondence between the online documentation and the printed version.
COMPONENT MAINTENANCE MANUAL
POSSIBLE CAUSE
The electronic boards are defective.
00001059
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 1017
Dec 15/06