Da-Lite Senior Electrol Instruction Book - Page 6
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Troubleshooting
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tutorials. You will also find a link to Live Chat for interactive
support and you can contact us by email at
Symptom
Screen will not operate
and motor does not hum.
Motor hums.
6
Cause
Blown fuse.
Tripped circuit breaker.
Improper wiring to operating switch.
Improper wiring to junction box in screen.
Thermal overload tripped (excessive overheating).
Burned out motor winding.
Defective limit switch
Temporary binding.
Shipping bracket not removed.
Defective capacitor.
[email protected] or by phone at (800) 622-3737 or (574) 267-8101
with any troubleshooting questions.
Solution
Replace fuse.
Reset circuit breaker.
Tighten all loose wire connections. Correct any improper
connections. Check for power.
"Down" Position
Check for power across black and white leads.
"Up" Position
Check for power across red and white leads.
"Down" Position
Check for power at black and white leads.
"Up" Position
Check for power at red and white leads.
Let motor cool down for 15 minutes. Try again.
Disconnect motor leads and check for continuity between
black and white wires for "down" position. Check for
continuity between red and white wires for "up" position.
Replace gear motor if either combination shows an open
circuit.
Disconnect "down" limit switch from circuit. Check for
continuity. Switches are normally closed and open on
contact.
With power "off," turn roller by hand to free binding.
Remove shipping bracket and wooden wedge.
Replace capacitor.