11
Troubleshooting
Symptom
Cause
Solution
Screen will not operate
and motor does not hum.
Incorrect line voltage.
Verify 115-125V (or 220-240V). If insufficient voltage, rewire
incoming electric line.
Blown fuse.
Replace fuse.
Tripped circuit breaker.
Reset circuit breaker.
No power to operating switch
or junction.
Check above. Tighten all loose wire connections.
Correct any improper connections.
Down Position
Check for power across black and white leads.
Up Position
Check for power across red and white leads.
Screen will not operate
and motor does not hum.
Power at junction box.
Thermal overload tripped.
Let motor cool down for 15 minutes. Try again.
Broken wire in the “down” or “up” position.
Check for continuity. Cut off old splice and reconnect.
Defective motor, limit switch or capacitor.
Replace motor assembly. NOTE: Motor is a sealed assembly.
Capacitor burned out.
Replace motor assembly.
Screen does not stop
at correct position.
Limit switch out of adjustment.
See Screen Adjustment section.
Noise.
NOTE: Screen will operate
with a low pitched hum.
Squeaking, rubber end plug rubbing on motor.
Center roller in case.
Grinding. Foreign object in screen
rubbing on roller or fabric.
Remove.
Gear noise.
Replace motor assembly.
Coasting.
Defective brake.
Replace motor assembly.
Fabric hangs crooked.
Screen not installed properly.
Check for level and plumb.
Fabric has backed up inside case.
Adjust “down” limit switch slowly until roller is exposed and
wrinkle comes out, then readjust for proper drop.
Fabric is damaged.
Replace fabric.
Conditions for Transportation and Storage
• Temperature: Between 40 - 1000F (5 - 400C)
• Relative Humidity: 30% to 70%, non-condensing
• Always keep the projection screen horizontal during transport
and storage
• Make sure the entire package is supported when stored
• Do not stack more than six projection screens on top of each other
• Make sure the heaviest package is places at the bottom of the stack
Screen surface should be allowed to air out once every two months, or otherwise used on a regular basis, if the temperature is above
720F (220C) and at least once every month if the temperature goes above 850F (300C).
