Lullaby
TM
Warmer 2042376-001 Rev G ©2012 General Electric Company. All rights reserved. 29
Chapter 4
Troubleshooting
There is no separate service mode in this equipment. During power up, the software will check all
the safety critical functions. The following are the troubleshooting guidelines for the trained
personnel:
Symptom
Likely causes
Action
Heater Failure
alarm
Defective heater tube
Replace heater tube FRU 2045962-
001–for 230 V
Replace heater tube FRU – 2056723-
001 for 115 V
Replace heater tube FRU – 2061076-
001 for 100 V
Defective cable assembly
heater-observation lamp.
Replace cable assembly heater-
observation lamp 2039891-001 in
FRU 2043950-001
NOTE: For Warmer with halogen
lamp and transformer.
Replace cable assembly heater-
observation lamp 2060529-001 in
FRU 2062276-001
NOTE: For Warmer with SMPS and
LED observation lamp.
Heater
cable
is
disconnected from the
PWA.
Connect heater-observation lamp
cable to PWA (PCB Wire Assembly)
Check if the heater tube
resistance is above 100
ohms.
If yes, replace heater tube 2044386-
001
Improper connection of
connector P10 on the PWA.
Check the connection on the PWA
The connector from the
heater tube to the PWA is
damaged.
Replace PWA FRU 2043951-001
NOTE: For Warmer with halogen
lamp and transformer.
Replace PWA FRU 2062277-001
NOTE: For Warmer with SMPS and
LED observation lamp
System does not turn on.
Power
cord
is
not
connected to the wall.
socket.
Connect the power cord to the wall
socket
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