Trane LWHA - Trouble Analysis

TRANE
®
Trouble Analysis
18
Use the tables in this section to assist
in identifying the cause of causes of a
malfunction in LWHA operation. The
column header RECOMMENDED
ACTION will suggest repair
procedures.
Note: These Tables are intended as a
diagnostic aid only. For detailed repair
procedures, contact your local Trane
Service Company.
IMPORTANT
!
DISCONNECT ELECTRICAL
POWER SOURCE AND ALLOW
ALL ROTATING EQUIPMENTTO
STOP COMPLETELY BEFORE
INSPECTING OR SERVICING
THE UNIT. FAILURE TO DO SO
MAY RESULT IN PERSONAL
INJURY OR DEATH FROM
ELECTRICAL SHOCK OR
MOVING PARTS.
WARNING
!
DISCONNECT ELECTRICAL
POWER PRIOR TO ACCESS
INTO A FAN DUCTWORK. EVEN
WHEN LOCKED OUT ELECTRI-
CALLY, FANS MAY CAUSE INJURY
OR DAMAGE IF THE IMPELLER IS
SUBJECT TO “WINDMILLING”.
THE IMPELLER SHOULD BE
SECURED TO PHYSICALLY
RESTRICT ROTATIONAL
MOVEMENT. FAILURE TO
SECURE IMPELLER CAN CAUSE
SEVERE PERSONAL INJURY OR
DEATH.