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43
SYMPTOM POSSIBLE CAUSES SOLUTIONS
Expansion board
function not
controlling gate.
a. Defective main board to expansionboard
wiring
b. Incorrect input wiring to expansion board
c. Defective expansion board or defective
main board
a. Check main board to expansion board wiring. If required, replace wire
cable.
b. Check wiring to all inputs on expansion board.
c. Replace defective expansion board or defective main board
Maglock not
working correctly.
a. Maglock wired incorrectly a. Check that Maglock is wired to N.C. and COM terminals. Check that
Maglock has power (do not power maglock from control board
accessory power terminals). If shorting lock’s NO and COM wires does
not activate Maglock, then replace Maglock or Maglock wiring (refer to
Wiring Diagrams).
Solenoid lock not
working correctly.
a. Solenoid wired incorrectly a. Check that Solenoid is wired to N.O. and COM terminals. Check that
Solenoid has power (do not power solenoid from control board
accessory power terminals). If shorting lock’s NC and COM wires does
not activate Solenoid, then replace Solenoid lock or Solenoid wiring
(refer to Wiring Diagrams).
Switched (SW)
Accessory power
remaining on.
a. In limit setup mode a. Learn the limits
Accessories
connected to
Switch (SW)
Accessory power
not working
correctly, turning
off, or resetting.
a. Normal behavior a. Move accessory to accessory power "ON"
Accessories
connected to
Accessory power
not working
correctly, turning
off, or resetting.
a. Accessory power protector active
b. Defective control board
a. Disconnect all accessory powered devices and measure accessory power
voltage (should be 23 – 30 Vdc). If voltage is correct, connect
accessories one at a time, measuring accessory voltage after every new
connection.
b. Replace defective control board
Quick Close not
working correctly.
a. Quick Close setting incorrect
b. Interrupt loop detector
c. Defective Expansion board
a. Check that Quick Close setting is ON
b. Check operation of Interrupt Loop detector
c. Replace defective Expansion board
Anti-Tailgating not
working correctly.
a. Anti-Tail setting incorrect
b. Interrupt loop detector
c. Defective Expansion board
a. Check that Anti-Tail setting is ON
b. Check operation of Interrupt Loop detector
c. Replace defective Expansion board
AUX Relay not
working correctly.
a. AUX Relay setting incorrect
b. AUX Relay wiring incorrect
c. Defective Expansion board
a. Check AUX Relay switches settings
b. Check that wiring is connected to either N.O. and COM or to N.C. and
COM.
c. Set AUX Relay to another setting and test. Replace defective expansion
board.
Solar operator not
getting enough
cycles per day.
a. Insufficient panel wattage
b. Excessive accessory power draw
c. Old batteries
d. Solar panels are not getting enough
sunlight
a. Add more solar panels
b. Reduce the accessory power draw by using LiftMaster low power
accessories
c. Replace batteries
d. Relocate the solar panels away from obstructions (trees, buildings, etc.)
Solar operator,
insufficient standby
time.
a. Insufficient panel wattage
b. Excessive accessory power draw
c. Battery capacity too low
a. Add more solar panels
b. Reduce the accessory power draw by using LiftMaster low power
accessories
c. Use batteries with higher amp hour (AH) rating
TROUBLESHOOTING
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