Da-Lite Large Dual Masking Electrol Instruction Book - Page 7

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Troubleshooting

Symptom

Screen will not operate

and motor does not hum.

Incorrect stopping position in

downward direction.

Incorrect stopping position in

upward direction.

Noise.

NOTE: Screen will operate

with a low pitched hum.

Coasting.

Restoring Lost Roller Wrap

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.

Cause

Incorrect line voltage.

Branch circuit fuse blown.

Tripped branch circuit breaker.

No power to operating switch or junction.

Power at junction box

Thermal overload tripped.

Broken wire in the "down" or "up" position.

Defective motor, limit switch or capacitor.

Motor capacitor burned out..

Lost roller wrap.

"Down" limit switch out of adjustment

Lost roller wrap.

"Up" limit switch out of adjustment

Gear Noise.

Defective brake.

Solution

Verify 115-125V (or 220-240V). If insufficient voltage, rewire

incoming electric line..

Replace fuse.

Reset circuit breaker.

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.

Let motor cool down for 15 minutes. Try again.

Check for continuity. Cut off old splice and reconnect.

Replace motor assembly. NOTE: Motor is a sealed assembly.

Replace motor assembly.

See instructions below..

See installation instructions.

See instructions below..

Adjust "up" limit switch. See installation instructions

Replace motor assembly.