Troubleshooting - Craftsman 139.30437 Owner's Manual

TROUBLESHOOTING
DIAGNOSTIC CHART
Your garage door opener is programmed with self-diagnostic capabilities. The UP and DOWNarrows on the garage door opener flash
the diagnostic codes.
DIAGNOSTIC UP DOWN SYMPTOM CAUSE RESOLUTION
CODE ARROW ARROW
1-1 1 FLASH 1 FLASH
1-2 1 FLASH 2 FLASHES
1-3 1 FLASH 3 FLASHES
1-4 1 FLASH 4 FLASHES
1-5 1 FLASH 5 FLASHES
The garage door
opener will not
close and the
light(s) willflash
Safety sensors are
notinstalled,
connected, or wires
may be cut
Inspect sensor wires for a disconnected or
cut wire(s). If the sending sensor with the
amber LEDis NOT lit, check the wire and
connections for that sensor. If sending
sensor LED is lit, check the wire
connections leading to the receiving
sensor (green LED). Reattach wire or
replacewire (22 gauge wire) as needed. If
pre-wired home, check the splices. See
page 24 for installation. Close the garage
door using the remote control or the door
control.
The garage door
opener will not
close and the
light(s) willflash
Safety sensor wire
shorted orreversed
Inspect sensor wire for incorrect wiring or
a pinched wire. If the sending sensor
(amber LED) is not lit, check the wire
leading to and from that sensor. Check
staple points. If sending sensor LED is lit,
check the wire leading to the receiving
sensor (green LED). Reattach wire or
replacewire (22 gauge wire) as needed. If
pre-wired home, check the splices. See
page 24 for installation. Close the garage
door using the remote control or the door
control.
Wall-mounted door
control will not
function
The wires for the
door control are
shorted or the door
control is faulty
Inspect door control wires for a short
(staple in wire), replacewire (22 gauge
wire) as needed.After installing new door
control wires, if door control still does not
operate garage door opener, replacethe
door control.
The garage door
opener will not
close the door and
the light(s) flash
Misaligned or
obstructed safety
sensors
Realignthe receiving sensor (green LED)
by ensuring the LED is steady and not
flickering. A flicker of the safety sensor
LEDindicates a misalignment. Make sure
nothing is hanging or mounted on the
door interrupting the sensor's path while
closing. Close the garage door using the
remote control or the door control.
The garage door Bad logic board
opener clicks but no
movement
Replacethe logic board.
The opener runs Communication
approximately 6-8" error to travel
and stops and/or module
reverses
Disconnect all power, remove cover, and
locate the travel module. Ensurethe wires
for travel module are connected, if wires
are connected, then replacethe travel
module.
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