Da-Lite Dual Masking Electrol - Manual (Page 7)

7
Troubleshooting
Symptom Cause Solution
Screen will not operate.
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.
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.
Incorrect stopping position in
downward direction.
Lost roller wrap. See instructions below.
“Down” limit switch out of adjustment. See installation instructions.
Incorrect stopping position in
upward direction.
Lost roller wrap. See instructions below.
“Up” limit switch out of adjustment. Adjust “up” limit switch. See installation instructions
Noise.
NOTE: Screen will operate
with a low pitched hum.
Gear Noise. Replace motor assembly.
Coasting. Defective brake. Replace motor assembly.
Restoring Lost Roller Wrap
1. Tape a strap to the bottom of the screen surface.
2. Push strap over back of roller.
3. Feed fabric as you pull strap to draw fabric over top of roller.
4. Remove tape and strap.