Service manual

Page 16 Technical Installation and Service Manual 4801-5159 Rev 01-2015
Troubleshooting Flowchart (cont.)
Remove
terminals for
Direction and
Sequential on door
assembly. Does the door
move in either
direction?
Will
the door run
in Jog Mode?
Yes
Yes
Is
the
Obstruction LED
lit on the
Display?
Yes
Is
any item
or door panel
between door
Safety
Beams?
From
Page 15
When
does the
Obstruction
LED come
on?
While
Opened
While Closing
Adjust the Leading Edge
Switch.
Replace Control
Door Assembly
N
o
N
o
Perform
test in
Section 14. Does
door operate
properly?
Replace Control
Door Assembly
N
o
Will the
Obstruction LED
go out while
activating the
Leading Edge
Switch?
Check for short in Leading
Edge circuit.
If OK, replace
Control Door Assembly.
Adjust the
Leading Edge
Switch.
Problem is in
Accessory Switches
added to the door.
N
o
Yes
Yes
Remove
item or
correct
door
panel.
Yes