Chamberlain INSL24UL Installation Manual page 42

SYMPTOM POSSIBLE CAUSES
Maglock not a. Maglock wired incorrectly
working correctly.
Solenoid lock not a. Solenoid wired incorrectly
working correctly.
Switched (SW) a. In limit setup mode
accessory power
remaining on.
Accessories a. Normal behavior
connected to
switched (SW)
accessory power
not working
correctly, turning
off, or resetting.
Accessories a. Accessory power protector active
connected to
b. Inoperable control board
Accessory power
not working
correctly, turning
off, or resetting.
Quick close not a. Quick close setting incorrect
working correctly.
b. Interrupt loop detector
c. Inoperable expansion board
Anti-tailgating not a. Anti-tail setting incorrect
working correctly.
b. Interrupt loop detector
c. Inoperable expansion board
AUX relay not a. AUX relay setting incorrect
working correctly.
b. AUX relay wiring incorrect
c. Inoperable expansion board or relay
adapter board
Solar operator not a. Insufficient panel wattage
getting enough
b. Excessive accessory power draw
cycles per day.
c. Old batteries
d. Solar panels are not getting enough
sunlight
Solar operator, a. Insufficient panel wattage
insufficient standby
b. Excessive accessory power draw
time.
c. Battery capacity too low
TROUBLESHOOTING
SOLUTIONS
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 diagram).
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 diagram).
a. Learn the limits
a. Move accessory to accessory power "ON"
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 inoperable control board
a. Check that quick close setting is ON
b. Check operation of interrupt loop detector
c. Replace inoperable expansion board
a. Check that anti-tail setting is ON
b. Check operation of Interrupt loop detector
c. Replace inoperable 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 inoperable
expansion board or relay adapter board.
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.)
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
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