17
Battery Back-Up Mode (BBU)
Optional 12V, 2.2Ah lead batteries SKU 490EV (optional, not included) can be mounted inside operator housing.
Follow the manual of SKU Nr 490EV for exact installation procedure.
A Flashing lamp (if mounted) will flash 2 seconds every 10 minutes indicating BBU mode and power loss.Control board will switch into stand-by mode with active radio
receiver accepting radio control device commands only. All other accessories and peripheral devices will not be functioning. When in Battery Back-up mode, myQ Smart-
phone Control and wireless myQ devices will be disabled. Full charged battery capacity shall support up to ~20 cycles at a rate of 2 per hour. After 24 hours of BBU mode
the battery shall provide power for 1 complete opening and closing cycle.
Please note that only the specified battery can be use. Use of any other battery leads to loss of warranty and loss of liability of LiftMaster for any related damages resul
-
ting from use of unspecified batteries.
8. BATTERY BACKUP
LED
Error
code
Issue
Possible reason
Solution
E0
Press transmitter, but no gate
movement
AP is set to 00
Check if AP is set to 00. If yes, change to correct application setting.
E1
Gate do not close, but can
open.
1) IR1 is not connected, or wire is cut.
1) Check if IR1 is not connected, or wire is cut.
2) IR1 wire is shorted out or reverse connected.
2) Check IR1 connection, change wires if needed.
3) IR1 is not aligned or blocked for a moment.
3) Align IR transmitter and receiver to make sure both LED is on,
instead of blinking. Make sure there is nothing hanging on gate that
may cause IR blocking.
E2
Gate can close when it is at
open limit, but cannot open
when it‘s at close limit.
1) IR2 is not connected, or wire is cut.
1) Check if IR2 is not connected, or wire is cut.
2) IR2 wire is shorted out or reverse connected.
2) Check IR2 connection, change wires if needed.
3) IR2 is not aligned or blocked for a moment.
3) Align IR transmitter and receiver to make sure both LED is on,
instead of blinking. Make sure there is nothing blocking the IR.
E3
Press transmitter, but no gate
movement.
1) IR3 is not connected, or wire is cut.
1) Check if IR3 is not connected, or wire is cut.
2) IR3 wire is shorted out or reverse connected.
2) Check IR3 connection, change wires if needed.
3) IR3 is not aligned or blocked for a moment.
3) Align IR transmitter and receiver to make sure both LED is on,
instead of blinking. Make sure there is nothing hanging on gate that
may cause IR blocking in short time.
E4
Press transmitter, but no gate
movement.
1) Safety edge is not connected with 8.2kohm
resistor.
1) Check if the 8.2 kOhm safety edge is properly connected or if the
8.2 kOhm resistor is installed.
2) Safety edge wire is shorted out.
2) Check safety edge wires and replace wire if needed.
3) Safety edge is pressed.
3) Check if safety edge is pressed.
E5
Press transmitter, but no gate
movement.
1) STOP swtich is open.
1) Check if STOP switch is open or damaged.
2) STOP switch is not connected.
2) Check if STOP switch is disconnected. If yes, then reconnect
STOP switch or change the respective Input setting to other value.
E6
Error Magnet
1) Mag switch is not connected or wrong
connection.
1) Check if mag switch is connected correctly. If not, fix the connec
-
tion.
2) Mag block drops from switch or fuse is
broken.
2) Check if Mag block drops from switch or fuse is broken.
E7
Press transmitter, but no gate
movement.
Control board amplifier for Motor 1 fail.
Switch off power for 20 seconds and reset to check if control board
recovers. If not, change control board.
E9
Press transmitter, but no gate
movement.
Control board memory mistake.
Switch off power for 20 seconds and reset to check if control board
recovers. If not, change control board.
F1
Motor stop and reverse
during open or close.
Motor is blocked.
Check and remove obstruction. Clean gate.
F3
Motor stop and reverse
during open or close.
Motor stall or speed sensor is damaged.
Check if motor 1 stalled or speed sensor is damaged.
F5
Press transmitter, but motor
has no action.
Radio module fail.
Switch off power for 20 seconds and reset to check if control board
recovers. If not, change control board.
F6
Gate reverse during closing.
Low battery power.
Charge battery.
F7
Press transmitter, but no gate
movement.
Control board damaged.
Switch off power for 20 seconds and reset to check if control board
recovers. If not, change control board.
F9
Press transmitter or push
button, but motor has no
action.
AP menu is reset to factory default.
Relearn limits.
LE
Motor stops suddenly.
Press C button during limit learning.
Relearn limits.
9. ERROR CODES
