Da-Lite Boardroom ElEctrol Instructieboek - Pagina 8
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TROUBLESHOOTING
SYMPTOM
4. Door does not close tightly.
5. "Down" limit switch incorrect.
6. Noise.
NOTE: Screen will operate with a
low-pitched hum.
7. Coasting.
8. Roller displaced from mounting
bracket.
9. Fabric door hangs down on one
end.
10. Fabric hangs crooked or is rub-
bing on slat hook.
Printed in U.S.A.
CAUSE
(a) Rubber bumpers are loose.
(b) Door limit switch is not adjusted
properly.
(c) "Up" limit switch in motor is out
of adjustment.
(a) "Down" limit switch out of adjust-
ment.
(a) Squeaking, rubber end plug rub-
bing on motor.
(b) Grinding. Foreign object in screen
rubbing on roller or fabric.
(c) Gear noise.
(a) Defective brake.
(a) Pin end slipped out of nylon bear-
ing
(a) Rubber bumpers are not tight.
(b) Slat hooks not formed equally.
(c) Crooked pocket.
(a) Screen not installed properly.
(b) Fabric has backed up inside case.
(c) Fabric is damaged.
7
SOLUTION
(a) Tighten.
(b) Turn adjustment knob counter-
clockwise. Do not over adjust
and stall the motor.
(c) NOTE: This switch is not normally
used when operating screen. Motor
automatically shuts off if fabric does
not close fabric door.
If adjustment allows motor to
shut off too soon, it will leave fab-
ric door open. Adjust black limit
switch clockwise (towards +).
(a) See installation instructions.
(a) Center roller in case.
(b) Remove.
(c) Replace motor assembly.
(a) Replace motor assembly.
(a) Remove pin end mounting.
Realign motor in tube. Reattach
pin end.
(a) Tighten.
(b) Bend slat hook slightly or apply
tape to end of slat where door
hangs. Build slat up enough to
close door.
(c) If not corrected by applying
above, replace fabric.
(a) Check for level and plumb.
(b) Adjust "down" limit switch slowly
until roller is exposed and wrinkle
comes out, then readjust for
proper drop.
(c) Replace fabric.
74418 Rev. 10/07