Troubleshooting; Diagnostic Chart - Chamberlain H Owner's Manual

DIAGNOSTIC CHART

The logic board has several LEDs to assist in the installation and troubleshooting of the operator. The following chart should assist in
verifying the operator is functioning properly. Turn the selector dial to DIAGNOSTIC to keep the door from moving while

troubleshooting.

LED
Power
Stop
Open
Close
Eyes
Timer Defeat
OLS
CLS
SLS
Edge
Mid Stop
Timer Enabled
SBC
MAS
Relay A
Relay B
T R O U B L E S H O O T I N G
COLOR DEFINITION
Green Indicates that power is being generated for the logic board.
Green Indicates a closed circuit between common and terminal 5.
Pressing stop should turn off this LED.
Yellow Indicates a closed circuit between common and terminal 7.
Pressing the open button should turn ON this LED.
Yellow Indicates a closed circuit between common and terminal 6.
Pressing the close button should turn ON this LED.
Green Solid on indicates photo eyes learned. Flashing indicates photo
eyes need to be connected or obstructed. Solid off indicates no
eyes learned.
Yellow Solid on indicates a closed circuit between common and terminal
12. Timer to close will not close.
Yellow Pressing the Open Limit Switch should turn ON this LED.
Yellow Pressing the Close Limit Switch should turn ON this LED.
Yellow Pressing the Sensing Limit Switch should turn ON this LED.
Yellow Indicates a closed circuit between common and terminal 8.
Pressing the edge should turn ON this LED.
Yellow Solid on indicates door is stopped on up or down mid stop.
Flashing indicates MID STOP is being set.
Green Solid on indicates TIMER is programmed and will activate from
open or mid stop position. Flashing indicates Timer is counting
down and door will close after preset time.
Yellow Indicates a closed circuit between common and terminal 1.
Pressing the single button control station should turn ON this LED.
Yellow Indicates the Maintenance Alert System has been activated or an
error code has been triggered.
Yellow Indicates open or close command has been given to the motor.
LED turns on when OPEN/CLOSE button is pressed.
Yellow Indicates open or close command has been given to the motor.
LED turns on when OPEN/CLOSE button is pressed.
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