Da-Lite Professional Electrol - Manual (Page 8)

8
Troubleshooting
Symptom Cause Solution
“ Down” limit switch incorrect. “ Down” limit switch out of adjustment. See installation instructions.
Noise.
NOTE: Screen will operate with
a low-pitched hum.
Squeaking, rubber end plug rubbing on motor.
Center roller between mounting brackets by pushing roller
away from motor end.
Grinding. Foreign object in screen rubbing on roller
or fabric.
Remove foreign object.
Gear noise Replace motor assembly..
Coasting. Defective brake. Replace motor assembly.
Roller displaced from
mounting bracket.
Pin end slipped out of nylon bearing
Remove pin end mounting. Realign motor in tube.
Reattach pin end.
Fabric hangs crooked.
Screen not installed properly.. Check for level and plumb.
Fabric has backed up inside case.
Adjust “down” limit switch slowly until roller is exposed and
wrinkle comes out, then readjust for proper drop.
Fabric is damaged. Replace fabric.