Da-Lite Senior Electrol - Manual (Page 6)

6
Troubleshooting
Symptom Cause Solution
Screen will not operate
and motor does not hum.
Blown fuse. Replace fuse.
Tripped circuit breaker. Reset circuit breaker.
Improper wiring to operating switch.
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.
Improper wiring to junction box in screen.
“Down” Position
Check for power at black and white leads.
“Up” Position
Check for power at red and white leads.
Thermal overload tripped (excessive overheating). Let motor cool down for 15 minutes. Try again.
Burned out motor winding.
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.
Defective limit switch
Disconnect “down” limit switch from circuit. Check for
continuity. Switches are normally closed and open on
contact.
Motor hums.
Temporary binding. With power “off,” turn roller by hand to free binding.
Shipping bracket not removed. Remove shipping bracket and wooden wedge.
Defective capacitor. Replace capacitor.
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.