10
Troubleshooting
Symptom
Cause
Solution
Screen will not operate or will
not go “down”.
Motor does not hum.
Motor hums.
Incorrect line voltage.
Verify 115-125V (or 220-240V). If insufficient voltage,
rewire incoming electric line.
Blown facility fuse.
Replace facility fuse.
Tripped facility circuit breaker.
Reset facility circuit breaker.
No power to operating switch
or junction box.
Check above. Tighten all loose wire connections.
Recheck wiring. See installation instructions.
Low voltage board has no power or
blown transformer.
Replace low voltage board.
"Down" Position
Check for power across black and white leads.
Power at junction box.
Thermal overload tripped.
Let motor cool down for 15 minutes. Try again.
Broken wire in the “down” position.
Check for continuity.
Defective motor, limit switch or capacitor.
Replace motor assembly. NOTE: Motor is a sealed assembly.
Capacitor burned out.
Replace motor assembly.
Screen will not move upward.
Motor does not hum.
Motor hums.
Incorrect line voltage.
Verify 115-125V (or 220-240V). If insufficient voltage,
rewire incoming electric line.
Blown facility fuse.
Replace facility fuse.
Tripped facility circuit breaker.
Reset facility circuit breaker.
No power to operating switch or junction box.
Check above. Tighten all loose wire connections. See above.
Low voltage board has no power or
blown transformer.
Replace low voltage board.
"Up" Position
Check for power across red and white leads.
Open door limit switch.
Replace switch.
Power at junction box.
Thermal overload tripped.
Let motor cool down for 15 minutes. Try again.
Broken wire in the “up” position.
Check for continuity.
Defective motor, limit switch or capacitor.
Replace motor assembly. NOTE: Motor is a sealed assembly.
Capacitor burned out.
Replace motor assembly.
Visit www.da-lite.com to find installation and troubleshooting
tutorials. You will also find a link to Live Chat for interactive
support.
You can contact us by email at info@da-lite.com or by phone
at 800.622.3737 or 574.267.8101 with any additional
troubleshooting questions.
