LiftMaster CSL24UL Manuals & Support

The LiftMaster CSL24UL is a 24 VDC slide gate operator for high-traffic commercial gates up to 50 ft and 1,500 lb. A continuous-duty 24 VDC motor drives #41 chain through a 10:1 oil-bath gearbox at 12 in per second.

Battery backup is included and gives up to 208 cycles or 24 days of standby. It has electronic limits, soft start and stop, Security+ 2.0 radio, myQ and 6 monitored safety inputs.

Identify your model

The model is on the label inside the cover. The CSL24ULWK is the same operator sold as a kit. Check the board revision before you order a main board or expansion board.

Key specs

Max gate	1,500 lb / 50 ft
Speed	12 in per second
Motor	24 VDC, continuous duty, soft start and stop
Power	115 VAC or 230 VAC single phase
Gear reduction	10:1 worm gear in oil bath
Chain	#41 (60 ft included)
Battery backup	Up to 208 cycles or 24 days standby
Accessory power	24 VDC, 500 mA, switched and unswitched
Monitored safety inputs	6 (main and expansion board)
UL 325 usage class	Class I, II, III and IV
Operating temperature	-4 to 140 °F; -40 °F with optional heater

Manuals and documents

Troubleshooting

To see codes, press and hold STOP, then CLOSE, then OPEN until "Er" shows on the diagnostic display. The display shows each saved code in order, starting with the most recent (01), up to 20 codes. Press STOP to exit.

Safety device codes

60: the minimum monitored devices are not installed. A slide gate needs one external device in the close direction and one in the open direction.
61 to 66: a photo eye or edge was held more than 3 minutes. Check alignment, wiring and obstructions.
70 to 75: a photo eye or edge tripped and reversed the gate. If nothing was in the way, check alignment, inputs and wiring.

Travel and motor codes

35: max run time exceeded. Check for an obstruction, then reprogram the limits.
50: run distance error. Check the limit positions and that the switches work.
91: force reversal. Check that the gate moves freely, then recheck the force setting.
93: RPM or stall reversal. Check the operator wiring and the APE encoder assembly.

Power and battery codes

31: board failure. Remove all power for 15 seconds, then reconnect. Replace the board if it comes back.
40 or 41: battery overvoltage or overcurrent. Make sure the battery voltage matches the system and check the charge harness.
42: no battery at boot up. Check connections. Replace batteries that read below 20 V on a 24 V system.
53: brownout. Check the supply wiring.

Loop and dual gate codes

43 to 45: exit, shadow or interrupt loop error on a LiftMaster plug-in detector. Check the loop for a short or open.
54: lost wireless link to the second operator. Check its power, then relearn the second operator.

Common questions

It needs at least one monitored external device in the close direction and one in the open direction. Use LiftMaster monitored photo eyes or edges, such as the LMRRUL, LMTBUL or S505AL. Code 60 shows on the display until they are connected.

Press and hold STOP, then CLOSE, then OPEN until "Er" shows. Use OPEN and CLOSE to scroll through the last 20 codes, and press STOP to exit.

Two batteries give up to 208 cycles or 24 days of standby after a power loss. The gate can be set to open on AC loss or battery depletion for fire department access.

It has a Security+ 2.0 three-channel receiver for up to 50 remotes, such as the 811LM and 893MAX. Use the 811LMX or 813LMX for unlimited remotes.

Replacement parts

Parts diagram: LiftMaster CSL24UL Parts Diagram and Replacement Parts

Identify your model

Key specs

Manuals and documents

Installation Manual

Wiring Diagram

Spec Sheet

Other documents