Control Board Leds Continued - Chamberlain Liftmaster Elite LA500-S Installation Manual

TROUBLESHOOTING

CONTROL BOARD LEDS CONTINUED...

YELLOW DIAGNOSTIC LED
# BLINKS MEANING
2 BLINKS ID resistor failure
3 BLINKS Exceeded Maximum
Run Timer
4 BLINKS Gate 1 disengaged
5 BLINKS Gate 1 RPM
(obstruction)
6 BLINKS Gate 1 current
(obstruction)
7 BLINKS Gate 1 position failure
8 BLINKS Gate 2 disengaged
9 BLINKS Gate 2 RPM
(obstruction)
10 BLINKS Gate 2 current
(obstruction)
11 BLINKS Gate 2 position failure
12 BLINKS Loop Error
INPUT LEDS
OPEN INPUT OFF
ON
BLINK
CLOSE INPUT OFF
ON
BLINK
STOP INPUT OFF
ON
BLINK
FIRE DEPT OFF
INPUT
ON
BLINK
SBC INPUT OFF
ON
BLINK
OPEN SAFETY OFF
INPUT
ON
BLINK
CLOSE SAFETY OFF
INPUT
ON
BLINK
DIAGNOSTIC CODES LEDS
CORRECTION
Check ID resistor wiring, clear limit settings and
reset limits
Check gate travel, if necessary adjust force
setting
Verify the release handle is engaged and
locked
Check for obstruction, if necessary adjust force
setting
Check for obstruction, if necessary adjust force
setting
Check gate travel, clear limit settings and reset
limits
Verify the release handle is engaged and
locked
Check for obstruction, if necessary adjust force
setting
Check for obstruction, if necessary adjust force
setting
Check gate travel, clear limit settings and reset
limits
One of the loops is in error. Refer to the loop
detector to determine the error.
Input inactive
Input active
Input active on other operator
Input inactive
Input active
Input active on other operator
Input inactive
Input active
Input active on other operator
Input inactive
Input active
Input active on other operator
Input inactive
Input active
Input active on other operator
Input inactive
Input active
Input active on other operator
Input inactive
Input active
Input active on other operator
RED DIAGNOSTIC LED
BEFORE replacing the control board cycle the power first. If the problem persists, then
proceed with the appropriate correction.
# BLINKS MEANING
2 BLINKS Current Sense
3 BLINKS FET Failure
4 BLINKS RAM Failure
5 BLINKS Flash Memory Failure
6 BLINKS EEPROM Failure
7 BLINKS Watchdog Failure
8 BLINKS Brownout*
9 BLINKS Fail
10-14 BLINKS Software Failure
* NOTE: After a brownout there is some delay before the system comes up. During this delay
the Amber LED will flash rapidly.
STATUS LEDS
INPUT OFF
POWER
ON
BATT OFF
CHARGING
ON
FAST BLINK (2 blinks per second)
SLOW BLINK (1 blink every 2 seconds) Medium charge
TIMER OFF
ON
MEDIUM BLINK (1 blink per second)
FAST BLINK (2 blinks per second)
FASTEST BLINK (8 blinks per second)
GATE OFF
MOVING
ON
MEDIUM BLINK (1 blink per second)
FASTEST BLINK (8 blinks per second)
BATT LOW OFF
ON
MEDIUM BLINK (1 blink per second)
FAST BLINK (2 blinks per second)
FASTEST BLINK (8 blinks per second)
ACC PWR OFF
OVLD
ON
41
CONTROL BOARD LEDS
CORRECTION
Motor control circuit fault, replace control
board
Motor control circuit fault, replace control
board
Memory failure, replace control board
Memory failure, replace control board
Memory failure, replace control board
Controller failure, replace control board
Check power harness or line voltage
Control Board failure
Cycle power to the control board. If
continues replace control board.
OFF state
AC charger or Solar power
available
Not charging
Trickle charge
High current charge
The timer is disabled
The timer is enabled
The timer is running
The timer is paused
The timer is cancelled
The gate is stopped
The gate is opening or closing
Operator is in E1 (single
entrapment)
The operator is in E2 (double
entrapment)
No battery error
Battery low
Battery critically low
Battery disconnected error (seen
in solar application or using
plug in transformer motion is
inhibited)
Battery over voltage/over
current error
OFF state
Accessory overload protector
opened