Specifications

29
SERVICE
Troubleshooting Guide
Issue Probable Cause Resolution
• No power to the controller unit
Ø Main Circuit breaker is
defective or not “ON”
Ø The fuse on the power
supply is blown
Ø Main power rocker switch is
defective
Ø AC wiring is defective
Ø Reset or replace the main circuit
breaker in the load center
Ø Replace the fuse on the power
supply
Ø Test rocker switch with an
ohmmeter. Replace if necessary
Ø Check AC wiring for opens. Replace
if necessary
• Red Lamp/s not illuminating • Replace the PCB assembly cover
• The 4 pin power connector to
the main PCB assembly is not
secure
• Secure the connector/s to the power
supply
Power switch in the
“ON” position but the
light is not illuminated.
• The connector/s to the rocker
switch are not secure
• Secure the connector/s to the rocker
switch
• Defective electric eye assembly
Ø Pressing the “BEAM TEST”
button on the controller unit
can test this. The door
should open, pause and
close. If the door operate
normally, check other
causes listed below
• Replace the electric eye assembly
• Loose electric eye cable from
the PCB
• Secure the cable connector (3 or 4 pin)
• Loose or broken wire/s in the
electric eye cable
• Check that the electric eye cables are
secure and not broken
• Defective lamp • Replace the PCB assembly cover
“BEAM BREAK” lamp is
“OFF” and does not
illuminate when the
electric eye is broken.
• Defective PCB assembly • Replace the PCB assembly
• Loose or broken wires to the
limit switches or the PCB
assembly
• Secure or replace the cable assembly
The door will not “AUTO
REVERSE” for an
obstruction when
closing and the motor
continue to run.
The “CURRENT
DETECT” lamp will not
illuminate.
• Defective controller unit • Replace the controller unit