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1. Does the opener have electric power? Plug a lamp into the outlet. If it doesn't light,

check the fuse box or the circuit breaker. (Some outlets are controlled by a wall switch.)

2. Have you disabled all door locks? Review installation instruction warnings on 

Page 10.

3. Is there a build-up of ice or snow under the door? The door may be frozen to the

ground. Remove any restriction.

4. The garage door spring may be broken. Have it replaced.

5. Repeated operation may have tripped the overload protector in the motor. Wait 

15 minutes. Try again.

Having a Problem?

Situation

Probable Cause & Solution

The opener doesn't
operate from either
the door control or
the remote control:

Opener operates
from the remote
control but not from
the door control:

1. Is the door control button lit? If not, Remove the bell wire from the opener terminal

screws. Short the red and white terminals by touching both terminals at the same
time with a piece of wire. If the opener runs, check for a faulty wire connection at the
door control, a short under the staples, or a broken wire.

2. Are the wiring connections correct? Review Step 6, page 16.

The door operates
from the door control,
but not from the
remote control:

1. Does the battery test light glow when the remote control push button is pressed? If

not, replace the battery.

2. Program the receiver to match the remote control code.

3. Repeat the receiver programming procedure with all remote controls.

The remote control
has short range:

The garage door
opens and closes
by itself:

1. Be sure that all remote control push buttons and battery indicator lights are off.

2. Remove the bell wire from the door control terminals and operate from the remote

control only. If this solves the problem, the door control is faulty (replace), or there is an
intermittent short on the wire between the door control and the opener.

The door doesn't
open completely:

1. If the door has been working properly but now doesn't open all the way, increase the

up force. See page 25.

2. Is something obstructing the door? Remove the obstruction or repair the door.

3. If door opens at least 5 feet, the travel limits may need to be increased. One turn

equals 2 inches of travel. See page 24.

Repeat the safety reverse test after the adjustment is complete.

The door stops but
doesn't close
completely:

Review the travel limits adjustment procedures on page 24.
Repeat the safety reverse test after any adjustment of door arm length, close force
or down limit.

30

1. Check the battery test light. If the light is dim, change the battery.

2. Change the location of the remote control in your car.

3.  Check to be sure the antenna on the back panel of opener extends fully downward.

4. Some installations may have shorter range due to a metal door, foil backed

insulation, or metal garage siding.

Install Antenna Kit, Part No. 41A3504, to increase range.

Opener noise is
disturbing in living
quarters of home:

If operational noise is a problem because of proximity of the opener to the living
quarters, the Vibration Isolator Kit 41A3263 can be installed. This kit was designed to
minimize vibration to the house and is easy to install.

Summary of Contents for CSO

Page 1: ...erials carefully Fasten the manual near the garage door after installation The door WILL NOT CLOSE unless the Protector System is connected and properly aligned Periodic checks of the opener are requi...

Page 2: ...ctional door installation 4 Carton inventory 5 Hardware inventory 6 Assembly section pages 7 10 Assemble rail 7 Attach chain pulley bracket 7 Install trolley 8 Fasten rail to power head 8 Install chai...

Page 3: ...stalling and operating the opener Use a wood screw or nail to hold locks in the open unlocked position Operation at other than 120V 60 Hz will cause opener malfunction and damage Identify the type and...

Page 4: ...age 20 Alternate floor mounting of the safety reversing sensor will require hardware not provided Step 11 page 22 Do you have a steel aluminum fiberglass or glass panel door If so horizontal and verti...

Page 5: ...sing Sensors 1 Sending Eye and 1 Receiving Eye with 2 Conductor White White Black Bell Wire attached Trolley Chain Pulley Bracket T O G A R A G E D O O R T O G A R A G E D O O R T O G A R A G E D O O...

Page 6: ...3 Trolley Threaded Shaft 1 Screw 6ABx1 1 2 2 Lock Washer 5 16 6 Lag Screw 5 16 9x1 5 8 4 Lock Nut 1 4 20 4 Carriage Bolt 1 4 20x1 2 4 Safety Reversing Sensor Installation Hardware Hex Screw 1 4 20x1...

Page 7: ...moothly along length of rail or it will hit against nuts Position the chain pulley bracket on the front end of the rail as shown Fasten securely with the hardware shown Lock Nut 1 4 20x7 16 Carriage B...

Page 8: ...ous damage to the power head 5 16 18x1 2 Washered Screws Trolley Stop Hole T O G A R A G E D O O R USE ONLY THIS TYPE AND SIZE SCREW 8 Attach the threaded shaft to the trolley with the lock washer and...

Page 9: ...ead Figure 2 Guide the chain around the chain spreader and sprocket Be sure sprocket teeth engage the chain Continue forward to the trolley threaded shaft Figure 3 Use the second master link to connec...

Page 10: ...ath Repairs to cables spring assemblies and other hardware must be made by a qualified service person before installing opener 3 Disable all locks and remove all ropes connected to the garage door bef...

Page 11: ...u can attach it to the ceiling refer to page 12 when clearance is minimal It may be mounted on the wall upside down if necessary to gain approximately 1 2 If you need to install the header bracket on...

Page 12: ...the holes designated for ceiling mount Drill 3 16 pilot holes and fasten the bracket securely to a structural support with the hardware provided Fasten the Header Bracket to the Ceiling Installation...

Page 13: ...packing material as a protective base If the door spring is in the way you ll need help Have someone hold the opener securely on a temporary support to allow the rail to clear the spring Position the...

Page 14: ...you raise the door pull down on the trolley release arm to disconnect the inner and outer sections The trolley can remain disconnected until Step 12 is completed A 2x4 laid flat is convenient for sett...

Page 15: ...nd nuts Check to make sure the rail is centered over the door or in line with the header bracket if the bracket is not centered above the door Remove the 2x4 Operate the door manually If the door hits...

Page 16: ...he wall and across the ceiling to the opener Use insulated staples to secure the wire in several places Be careful not to pierce the wire with a staple thereby resulting in a short Receiver terminal s...

Page 17: ...e door is open when the handle is pulled the door could close inadvertently if it is not properly balanced Serious injury may result to persons under the door Make sure the doorway is clear of persons...

Page 18: ...d Connect the black line wire to the screw on the brass terminal the white neutral wire to the screw on the silver terminal and the ground wire to the green ground screw The opener must be grounded Re...

Page 19: ...the door is closing If it does use a piece of wood to build out each sensor mounting location to the minimum depth required for light beam clearance 19 Information you ll need before you begin the ins...

Page 20: ...h track and fasten securely with hardware as shown in Figure 3 For Wall Installation Connect each assembly to a slotted bracket using the hardware shown in Figure 4 Note alignment of brackets for left...

Page 21: ...ring connections and alignment are correct If the indicator light is off in the receiving eye and the invisible light beam path is not obstructed alignment is required Loosen the receiving eye wing nu...

Page 22: ...e 2 pieces of angle iron are used to create a U shaped support The best solution is to check with your garage door manufacturer for an opener installation door reinforcement kit Center the door bracke...

Page 23: ...Handle Rope Figure 3 If holes in curved arm are above holes in straight arm disconnect straight arm Cut about 6 from the solid end Reconnect to trolley with cut end down as shown Bring arm sections t...

Page 24: ...Limits If the door does not open completely but opens at least five feet Increase up travel Turn the UP limit adjustment screw clockwise One turn equals 2 of travel If door does not open at least 5 fe...

Page 25: ...ockwise Make 10 degree turn adjustments until the door stops easily After each adjustment run the opener through a complete travel cycle If the door doesn t open at least 5 feet Increase UP Open force...

Page 26: ...epeat this test once a month and adjust as needed 26 Adjustment Step 3 Test The Safety Reversing Sensor Press the Door Control button to open the door Place the opener carton in the path of the door P...

Page 27: ...pener Once a Month Manually operate door If it is unbalanced or binding call for professional garage door service Check to be sure door opens and closes fully Adjust limits and or force if necessary S...

Page 28: ...ntrol the Outside Keylock or Keyless Entry however if you activate them until down travel is complete If you release them too soon the door will reverse The opener light will blink for 5 seconds when...

Page 29: ...ton See Figure 1 2 Then press and release the green Smart button on the back panel of the opener in Figure 2 The indicator light on the panel will flash once 3 Release the remote push button Now the o...

Page 30: ...ange The garage door opens and closes by itself 1 Be sure that all remote control push buttons and battery indicator lights are off 2 Remove the bell wire from the door control terminals and operate f...

Page 31: ...tly in the closed door position Use the manual release rope and handle to disconnect the trolley If the chain returns to the normal height when the trolley is disengaged and the door reverses on a one...

Page 32: ...KEY PART NO NO DESCRIPTION 1 41A4166 Door control button 2 41A3984 5 Single function remote control transmitter housing screw no circuit board 3 10A14 12V battery 4 29C128 Remote control visor clip 5...

Page 33: ...m gear kit w grease Roll pins 2 5 143D100 Front end panel 6 175B88M Light socket 7 30B432 Capacitor 8 12A461 Capacitor bracket 9 41A3150 Terminal block with screws KEY PART NO NO DESCRIPTION 10 41D450...

Page 34: ...lease Required for a garage with NO access door 850CB Single Function Standard Size Remote Control Includes visor clip 856CB Multi Function Mini Remote Control With key ring Velcro fastening strip 872...

Page 35: ...stments 30 31 Safety warnings 24 27 Manual Release Rope Handle Lockout feature 28 Manual disconnect 28 31 Safety warnings 10 17 27 28 Opener Terminals Door control connections 16 Safety reversing sens...

Page 36: ...r You will be advised of shipping instructions when you call the toll free service number Please include a brief description of the problem and a dated proof of purchase receipt with any product that...

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