Chamberlain LiftMaster Elite CSL24VH Installation Manual page 40

TROUBLESHOOTING
FAULT POSSIBLE CAUSES
Alarm sounds for 5 a) Double entrapment occurred
minutes or alarm sounds
with a command.
Alarm beeps three times a) Low battery with loss of AC/solar power
with a command.
On dual-gate system, a) Defective or incorrect operator-to-operator
one gate is not
commanding the other.
b) Incorrect operator-to-operator wireless
On dual-gate system, a) Incorrect Bipart switch setting
incorrect gate opens first
or closes first.
Expansion board function a) Defective main board to expansion board
not controlling gate.
b) Incorrect input wiring to expansion board
c) Defective expansion board or defective
Maglock not working a) Maglock wired incorrectly
correctly.
Solenoid lock not a) Solenoid wired incorrectly
working correctly.
Switched (SW) Accessory a) In limit setup mode
power remaining on.
Accessories connected to a) Normal behavior
Switch (SW) Accessory
power not working
correctly, turning off, or
resetting.
Accessories connected to a) Accessory power protector active
Accessory power not
b) Defective control board
working correctly,
turning off, or resetting.
Quick Close not working a) Quick Close setting incorrect
correctly.
b) CLOSE EYES/Interrupt loop detector or loop
c) Defective Expansion board
Anti-Tailgating not a) Anti-Tail setting incorrect
working correctly.
b) CLOSE EYES/Interrupt loop detector or loop
c) Defective Expansion board
AUX Relay not working a) AUX Relay setting incorrect
correctly.
b) AUX Relay wiring incorrect
c) Defective Expansion board
wiring
learning
wiring
main board
wire defective
wire defective
CORRECTIONS
a) Check for cause of entrapment (obstruction) detection and correct. Toggle the reset
switch to shut off alarm and reset the operator.
a) Check if AC power is available. If no AC power, then running on batteries and battery
voltage must be 22.0 Vdc or higher. Charge batteries by AC or solar power or replace
batteries.
a) Check operator-to-operator wiring.
b) Relearn the wireless network of one operator to the other operator.
a) Change setting of both operator's Bipart switch settings. One operator should have
Bipart switch OFF (operator that opens first) and the other operator should have Bipart
switch ON (operator that opens second).
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.
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.
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.
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 defective control board.
a) Check that Quick Close setting is ON.
b) Check operation of CLOSE EYES/Interrupt Loop detector.
c) Replace defective Expansion board.
a) Check that Anti-Tail setting is ON.
b) Check operation of CLOSE EYES/Interrupt Loop detector.
c) Replace 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.
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TROUBLESHOOTING CHART