Da-Lite Designer Electrol, Instruction Book

5

TROUBLESHOOTING

SYMPTOM

 
  1.   Screen will not operate.

Motor does

 not 

hum.

Motor 

hums.

2.

Incorrect stopping position in  

downward 

direction.

3.

Incorrect stopping position in  

upward 

direction.

4.

Noise.

NOTE: Screen will operate with a 

    low pitched hum.

5.

Coasting.

6.

Roller displaced from mounting  

    bracket.

CAUSE

(a)   Incorrect line voltage. 

(b)   Blown fuse.
(c)  Tripped circuit breaker.
(d)   No power to operating switch     

or junction. 

Power at junction box 

(e)   Thermal overload tripped.
 

(f)  Broken wire in the 

“up”

 or 

”down”

position.

(g)   Defective motor, limit switch or 

capacitor.

(h)   Temporary binding. 

(i)  Capacitor burned out.
(a)  Lost roller wrap.
(b) 

“Down” 

limit switch out of         

adjustment

(a)  Lost roller wrap.
(b) 

“Up” 

limit switch out of              

adjustment 

(a)  Squeaking rubber end plug 

rubbing on motor.

(b)  Grinding due to foreign object in  

screen rubbing on roller or fabric.

(c)   Gear noise.

(a)   Defective brake. 

(a)   Pin end slipped out of nylon  bear-

ing.

RESTORING LOST ROLLER WRAP

1.  Push strap over back of roller.
2.  Tape end of strap to pocket.
3.  Feed fabric as you pull strap to  

  draw fabric over top.
4.  Remove tape and strap.

SOLUTION

(a)   Verify 115-125V (or 220-240V). If 

insufficient voltage, rewire incom-

ing electric line.

(b)   Replace fuse.
(c)  Reset circuit breaker.
(d)  Check above. Tighten all loose 

wire connections. Correct any 

improper connections.

“Down” Position

 Check for power across black 

and white leads.

“Up” Position

 Check for power across red

and white leads.

(e)  Let motor cool down for 15     

minutes. Try again.

(f)  Check for continuity. Cut off old  

splice and reconnect.

(g)   Replace motor assembly. 

NOTE: Motor is a sealed assembly.

(h)   With power 

“off”

, turn roller by 

hand to free binding.

(i)   Replace motor assembly.
(a)   See instructions below.
(b)   See installation instructions.
 

(a)   See instructions below.
(b)  Adjust 

“up” 

limit switch. Turn  

clockwise to expose more fabric. 

    See installation instructions
 

(a)   Adjust roller to center of case.
 

(b)   Remove foreign object. 

(c)   Replace motor assembly.

(a)   Replace motor assembly. 

(a)   Remove pin end mounting. 

Re-align motor in tube. Re-attach 

pin end.