Sunnex CS2050D (Dual) - Manual (Page 27)

INSTALLATION AND OPERATING MANUAL
26
9. Troubleshooting
PROBLEM POSSIBLE CAUSE SOLUTION
No light from light head Light head switch is on OFF
position Turn on the ON/OFF switch to ON
position
Connection at balance arm and
extension arm not correct Check the connection
Bulb has not been installed or it
has burned out Refer to bulb replacement procedure
in the manual
Fuse is blown Replace BOTH FUSES following
the fuse replacement procedure
No power to the transformer box
Check for facility power to the
transformer box
Transformer is malfunctioning
Check for 14 V AC output at the
transformer when it is under load
No light from light head, when
ON/OFF switch is ON
Incorrect bulb installed Install correct bulb
Bulb burns out quickly Incorrect bulb installed in the
light head Install correct bulb
Incorrect bulb installed in the
light head Install correct bulb Light output is irregular in its shape
or intensity
Bulb/reflector is not seated in its
holder correctly Adjust the bulb/reflector so it seats
in the holder properly
No light from light head even when
the bulb and fuse are in good
condition, light head flashes
intermittently when light head or
arms are moved Circuit or wiring problem within
transformer, arm assemblies or
other part of lighting system Check all wiring connections. If
problem cannot be repaired, call
Customer Service
Head & balance arm drift (moves
down) slightly Normal wear in leather anti-
squeak washer GENTLY tighten balance arm nut
Extension arm does not rotate freely
or drifts (Ceiling) Improper installation of the
ceiling bracket Check for excessive flexing of
ceiling support structure and check
if ceiling plate is level. Readjust if
necessary.
Extension arm does not rotate freely
or drifts (Wall) Improper installation of the wall
board on wall studs of the room Check the joint of transformer
housing with wall board, and wall
board with wall studs. Readjust if
necessary.
Balance arm does not rotate freely
or drifts when released in desired
position The nut joining the balance arm
and the extension arm is loose Tighten this nut slightly
Light head does not rotate freely at
lamp head/yoke joint The screw/nut joining lamp head
with the yoke is too tight or too
loose Tighten/loosen as appropriate until
free movement of lamp head is
achieved