Nuvo VISTOR Installation & Service Manual page 68

General Troubleshooting (continued)
Problem
VistOR SP Models Only
Fan will not turn on
Light does not maintain its
position horizontally
Upright rotates in floor
stand
Light output is irregular in
shape or intensity
**Note: Rated bulb life is the average published by bulb manufacturers. Actual bulb life
varies dependant upon bulb manufacturer and/or operating conditions.
5368 KUHL ROAD ● ERIE, PENNSYLVANIA 16510 ● PHONE 814-899-4220 ● FAX 814-899-1410
Cause
1. Fan blades are obstructed by foreign
object.
2. Fan motor wires are disconnected.
3. Fan motor has failed.
4. Fan operates but bulb will not turn
on.
1. Mounting bracket is not level.
2. Hex nuts on pivot bolts are loose.
1. Upright set screw is loose.
2. Upright is not fully seated on anti-
rotation pin.
1. Incorrect bulb is installed in light.
2. Bulb is not seated in its socket
correctly.
3. Input voltage does not correspond to
rating label.
4. The light head is not mounted on the
proper arm (Combo models).
VistOR SP Models Only
5. Lamp holder is bent or mounting
bolts are loose causing light to focus
away from the center of lens.
6. Sliding platform and rear grille are
not fully seated in the light head
housing.
7. Dimmer and spot size controls are
out of adjustment.
A member of the Medical Illumination International Group
Remedy
1. Remove the foreign object/objects.
2. Re-connect the fan motor wires.
3. Replace the fan motor.
4. Thermal fuse has blown. Replace
thermal fuse.
1. Adjust or shim as necessary.
2. Remove plastic caps and adjust as
necessary.
1. Securely tighten set screw.
2. Reinstall upright. Ensure the upright
fully seats on the anti-rotation pin seats.
1. Install correct bulb.
2. Push bulb fully into the socket.
3. Check circuit to whish light was
installed.
4. Remount light head on the correct arm.
5. Straighten lamp holder and securely
tighten the mounting bolts.
6. Slide the grille into place and tighten
the retaining screw.
7. Adjust controls to desired output.
Section 7
P
age 68 of 85