Troubleshooting Chart - LiftMaster Elite Serie Manuel D'installation

Troubleshooting Chart

SYMPTOM POSSIBLE CAUSES
Operator does not a. No power to control board
run and diagnostic
b. Open fuse
display not on.
c. If on battery power only, low or dead
batteries
d. Defective control board
Control board a. Reset switch is stuck
powers up, but
b. Stop button active or jumper not in place
motor does not
for stop circuit
run.
c. If on battery power only, low or dead
batteries
d. Open or Close input active
e. Entrapment Protection Device active
f. Vehicle loop detector or probe active
g. Defective control board
Gate/door moves, a. Gate/door does not move to a limit position
but cannot set
b. Gate/door is too difficult to move
correct limits.
c. Limits are set too close (slide gate
applications only)
Gate/door does not a. Gate/door does not move to a limit position
fully open or fully
b. Gate/door is too difficult to move
close when setting
limits.
Operator does not a. Check Open and Close command input
respond to a wired LEDs
control/command
b. Stop button is active
(example: Open,
c. Reset button is stuck
Close, SBC, etc.)
d. If on battery power only, low or dead
batteries
e. Entrapment Protection Device active
f. Vehicle loop detector or vehicle probe
active
Operator does not a. Check XMITTER LED when wireless
respond to a control is active
wireless control or
b. Stop button is active
transmitter
c. Reset button is stuck
d. Poor radio reception
Gate/door stops a. Control (Open, Close) becoming active
during travel and
b. Vehicle loop detector active
reverses
c. Low battery voltage
immediately.
TROUBLESHOOTING
SOLUTIONS
a. Check AC and battery power
b. Check fuses
c. Charge batteries by AC or solar power or replace batteries
d. Replace defective control board
a. Check reset switch
b. Check Stop button is not "stuck on", or verify that the stop button is a
normally closed circuit, or put a jumper on the stop circuit.
c. Charges batteries by AC or solar power or replace batteries
d. Check all Open and Close inputs for a "stuck on" input
e. Check all Entrapment Protection Device inputs for a "stuck on" sensor
f. Check all vehicle detector inputs for a "stuck on" detector
g. Replace defective control board
a. Use manual disconnect, manually move gate/door, and ensure gate/door
moves easily limit to limit. Repair gate/door as needed.
b. Gate/door must move easily and freely through its entire range, limit to
limit. Repair gate/door as needed.
c. Ensure the gate/door moves at least four feet between the OPEN limit and
the CLOSE limit.
a. Use manual disconnect, manually move gate/door, and ensure gate
moves easily limit to limit. Repair gate/door as needed.
b. Gate/door must move easily and freely through its entire range, limit to
limit. Repair gate/door as needed.
a. Check all Open and Close inputs for a "stuck on" input
b. Check Stop button is not "stuck on"
c. Check Reset button
d. Charges batteries by AC or solar power or replace batteries
e. Check all Entrapment Protection Device inputs for a "stuck on" sensor
f. Check all vehicle detector inputs for a "stuck on" detector
a. Activate wireless control and check XMITTER LED is on. Re-learn
wireless control/transmitter to control board. Replace wireless control as
needed.
b. Check Stop button is not "stuck on"
c. Check Reset button
d. Check if similar wired control operates correctly. Check if wireless
controls works properly when within a few feet of operator. Check
operator's antenna and antenna wire. Check other wireless controls or
devices.
a. Check all Open and Close inputs for an active input
b. Check all vehicle detector inputs for an active detector
c. Battery voltage must be 23.0 Vdc or higher. Charge batteries by AC or
solar power or replace batteries
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