Refer to the following guidelines if you encounter a difficulty in the operation of
your Stewart Filmscreen. Problems related to electrical or motor function may
require a qualified service person or electrician.
Should you have a problem that is not addressed here, call the Stewart
Filmscreen Corporation.
ElectriMask Electriscreen: Owner’s Manual
15
T
ROUBLESHOOTING
Problem description
Probable cause
Action to take
Screen won't operate.
No AC power available.
Check to see if the circuit breaker
has switched off. Reset if needed.
Check voltage availability. Contact
an electrician.
Screen won't roll up or down
(even though power is
available).
Bad connection at switch.
Have an electrician or qualified
service person check the
connection as follows:
N
If you have a
high voltage control
switch, check switch-line
connections.
N
If you have a
low voltage control
unit, check switch-line
connections.
N
If you have a
screen trigger
interface
, check line connections,
or the mini-plugs at the screen
input or projector output. Contacts
may be sticking—tap relay to free
contacts.
Screen roller chatters when
power is activated.
Can be caused by voltage
drop, bad connections, or a
defective switch.
Have an electrician or qualified
service person check all hook-ups
including all outboard wiring.
Unit hums in up mode. (Screen
has already retracted.)
The screen batten is retracting
too far into the case.
Failure
to correct can damage
motor and screen. Do not
use the unit until this
problem is resolved.
Have a qualified service person
adjust the yellow UP limit switch.
Turn the adjusting screw clockwise.
Screen drops when up direction
is activated (grinding noise
occurs).
Drop in voltage.
Screen motor requires full voltage.
Have an electrician or qualified
service person check available
voltage.
