Da-Lite Boardroom Electrol - Manual (Page 7)

7
Symptom Cause Solution
Screen will not operate or will
not go “down”.
Motor does not hum.
Motor hums.
Blown fuse. Replace fuse.
Tripped circuit breaker. Reset circuit.
No power to operating switch or junction box.
Check above. Tighten all loose wire connections.
Recheck wiring. See installation instructions.
Insufficient line voltage (must be at least 115V or
220V, depending on motor type).
Correct line voltage.
“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.
Blown fuse. Replace fuse.
Tripped circuit breaker. Reset circuit breaker.
No power to operating switch or junction box.
Check above. Tighten all loose wire connections. See above.
“Up” Position
Check for power across red and white leads.
Insufficient line voltage (must be at least 115V or
220V, depending on motor type).
Correct line voltage.
Open door micro switch. Replace micro 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.
Troubleshooting
Visit www.da-lite.com to find installation and troubleshooting
tutorials. You will also find a link to Live Chat for interactive
support and you can contact us by email at [email protected] or
by phone at (800) 622-3737 or (574) 267-8101 with any
troubleshooting questions.