Welch Allyn 49506 Light Source - User Manual - Manual (Page 13)

11
TROUBLESHOOTING
POSSIBLE CAUSE SOLUTION
fan is not operating. Light Source is not plugged
into either the wall outlet or
the power cord socket.
Power switch is not
turned on.
The bottom cover is not
properly installed.
One or both fuses have
blown.
Power cord is damaged.
This may cause intermittent
operation.
No power is supplied to
the wall outlet.
Plug the power cord into the
wall outlet and power cord
socket at back of unit.
Depress the “I” side of the
power switch.
Remove the bottom cover
and reinstall carefully,
making sure that the lip on
the bottom fits into the front
of the housing and that the
thumbscrew is fully tightened.
Replace both fuses. Follow
the instructions in the fuse
replacement section. If fuses
continue to blow, return Light
Source to an authorized
repair center.
Replace the power cord with a
new Welch Allyn power cord.
Verify that the wall outlet
has power by checking the
circuit breaker status and by
operating other equipment
at that wall outlet.
fan is operating. The lamp was not able to
“cool down” before restarting.
The Light Source has
overheated.
The lamp has burned out.
Wait at least 15 seconds
after turning the Light Source
off before turning it back on.
Verify that all ventilation
slots and the fan area are
not obstructed. The Light
Source should be mounted
on the supplied mounting
bracket and there should
always be at least
3-inches clearance.
Replace with a new Welch
Allyn lamp. Refer to the
lamp replacement section.
If lamp is not
illuminating and …