Da-Lite Large advantage electrol Instruction Book - page 9
8
TROUBLESHOOTING
SYMPTOM
1. Screenwillnotoperateorwillnotgo
“down”.
Motordoes not hum.
Motor hums.
2. Screenwillnotmove upward.
Motordoesnothum.
Motorhums.
CAUSE
(a) Incorrectlinevoltage.
(b) Blownfacilityfuse.
(c) Trippedfacilitycircuitbreaker.
(d) No powertooperatingswitchor
junctionbox.
(e) Lowvoltageboardhasnopoweror
blowntransformer.
Power at junction box.
(f) Thermaloverloadtripped.
(g) Brokenwireinthe“down”position.
(h) Defectivemotor,limitswitchor
capacitor.
(i) Capacitorburnedout.
(a) Incorrectlinevoltage.
(b) Blownfacilityfuse.
(c) Trippedfacilitycircuitbreaker.
(d) No powertooperatingswitchor
junctionbox.
(e) Lowvoltageboardhasnopoweror
blowntransformer.
Power at junction box
(g) Thermaloverloadtripped.
(h) Brokenwireinthe“up” position.
(i) Defectivemotor,limitswitchor
capacitor.
(j) Capacitorburnedout.
SOLUTION
(a) Verify115-125V(or220-240V).If
insufficientvoltage,rewireincoming
electricline.
(b) Replacefacilityfuse.
(c) Resetfacilitycircuitbreaker.
(d) Checkabove.Tightenallloosewire
connections.Recheckwiring.See
installationinstructions.
(e) Replacelowvoltageboard.
“Down” Position
Checkforpoweracrossblackand
whiteleads.
(f) Letmotorcooldownfor15minutes.
Tryagain.
(g) Checkforcontinuity.
(h) Replacemotorassembly.
NOTE: Motor is a sealed assembly.
(i) Replacemotorassembly.
(a) Verify115-125V(or220-240V).If
insufficientvoltage,rewireincoming
electricline.
(b) Replacefacilityfuse.
(c) Resetfacilitycircuitbreaker.
(d) Checkabove.Tightenallloosewire
connections.Seeabove.
(e) Replacelowvoltageboard.
“Up” Position
Checkforpoweracrossredand
whiteleads.
(g) Letmotorcooldownfor15minutes.
Tryagain.
(h) Checkforcontinuity.
(i) Replacemotorassembly.
NOTE: Motor is a sealed assembly.
(j) Replacemotorassembly.