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Chamberlain 3800 - page 1
Owner’ s Manual ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten the manual near the garage door after installation. ■ The door WILL NOT CLOSE unless The Protector System ® and cable tension monitor are connected and properly aligned. ■ Periodic checks of the opener are required to ensure safe operation. ? ...
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Chamberlain 3800 - page 2
2 INTRODUCTION Safety Symbol Review and Signal Wor d Review When you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them. The hazard may come from something mechanical or from electric shock. Read the warnings c ...
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Chamberlain 3800 - page 3
Safety Reversing Sensor Safety Reversing Sensor T orsion Spring Motor unit W all-mounted Control Console Access Door Gap between floor and bottom of door must not exceed 1/4" (6 mm). Power Door Lock Cable T ension Monitor Remote Light Drum 3 Planning Survey your garage area to see if any of the conditions below apply to your installation. Addi ...
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Chamberlain 3800 - page 4
4 Preparing your Garage Door Before you begin: • Disable locks. • Remove any ropes connected to garage door . • Complete the following test to make sure your garage door is balanced and is not sticking or binding: 1. Lift the door about halfway as shown. Release the door . If balanced, it should stay in place, supported entirely by its spring ...
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Chamberlain 3800 - page 5
5 2-Cond u ctor Bell W ire W hite & W hite/Red Safety La b els and Literat u re Remote Control V isor Clip Mo u nting Bracket SECURITY ✚ ® 3-B u tton Remote Control (1) (2) Safety Re v ersing Sensors (1 Sending Eye and 1 Recei v ing Eye) w ith 2-Cond u ctor W hite & W hite/Black Bell W ire attached Safety Sensor Bracket (2) Motor Unit LO ...
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Chamberlain 3800 - page 6
ASSEMBL Y STEP 1 Attach the Collar to the Motor Unit T o avoid installation difficulties, do not run the garage door opener until instructed to do so. • Loosen the collar screws. • Attach collar to either the left or the right side of the motor unit. Ensure that the collar is seated all the way on motor shaft until stop is reached (Figure 1). ? ...
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Chamberlain 3800 - page 7
7 INST ALLA TION INST ALLA TION STEP 1 Position the Opener 1. Close the garage door completely . 2. Slide the opener with collar over the end of the torsion bar . Check to make sure bracket is located on a solid surface such as wood, concrete or door/flag bracket. Snug collar screws to help assure proper alignment of operator . Mark the bracket hol ...
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Chamberlain 3800 - page 8
8 Staples Lock Scre w 1/4-20 x 1/2" (2) HARDW ARE SHOWN ACTUAL SIZE Approx. 3" (7.6 cm) Lock T emplate Roller Garage Door T rack TOP DRILL 5/16" DRILL 3/4" DRILL 5/16" 132A2505 TOP DRILL 5/16" DRILL 3/4" DRILL 5/16" 132A2505 Figure 1 INST ALLA TION STEP 3 Install Power Door Lock The lock is used to prevent th ...
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Chamberlain 3800 - page 9
9 W HT/GR N T o release w ire, p u sh in ta b w ith scre w dri v er tip Ca b le T ension Monitor 7/16" (1 1mm) Strip w ire 7/16" (1 1mm) W HT/GR N Ca b le T ension Monitor Ca b le T ension Monitor Roller Ca b le 2"-6" (5 cm- 15 cm) Dr u m T orsion Bar Opener 1/ 8 "-1/4" (3 mm-6 mm) W ith Door Closed Preferred Orientati ...
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Chamberlain 3800 - page 10
10 INST ALLA TION STEP 5 Install the Control Console Locate control console within sight of the door at a minimum height of 5 feet (1.5 m) where small children cannot reach, and away from moving parts of the door and door hardware. The installation surface must be smooth and flat. If installing into drywall (Figure 1), drill 5/32" holes and us ...
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Chamberlain 3800 - page 11
11 INST ALLA TION STEP 6 Install Remote Light The remote light is designed to plug directly into a standard 120V outlet. 1. Install the hinge and latch clips. Clips slide in between the metal plate and the plastic housing on each side of the light base (Figure 1). 2. Light should be mounted within 6' (1.8 m) of an electrical outlet and away fr ...
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Chamberlain 3800 - page 12
12 INST ALLA TION STEP 7 Electrical Requirements T o avoid installation difficulties, do not run the opener at this time. T o reduce the risk of electric shock, your garage door opener has a grounding type plug with a third grounding pin. This plug will only fit into a grounding type outlet. If the plug doesn't fit into the outlet you have, co ...
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Chamberlain 3800 - page 13
13 INST ALLA TION STEP 8 Mount the Battery Backup Unit (BBU) (not provided) If the optional 475LM battery backup unit is part of this installation it should be installed at this time. • The BBU can be mounted to either the ceiling or a wall within 3' (.9 m) of the motor unit. • Position the BBU as desired to a structural support (ceiling j ...
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Chamberlain 3800 - page 14
14 In v isi b le Light Beam Protection Area Safety Re v ersing Sensor 6" (15 cm) max. a b o v e floor Safety Re v ersing Sensor 6" (15 cm) max. a b o v e floor Facing the door from inside the garage INST ALLA TION STEP 9 Install The Protector System ® The safety reversing sensor must be connected and aligned correctly before the garage d ...
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Chamberlain 3800 - page 15
15 DOOR TRACK MOUNT (RIGHT SIDE) Indicator Light Lens Lip Sensor Bracket Door Track FLOOR MOUNT (RIGHT SIDE) WALL MOUNT (RIGHT SIDE) Indicator Light Sensor Bracket Lens Extension Bracket (See Accessories) Inside G arage W all (Provided with Extension Bracket) (Provided with Extension Bracket) Figure 1 Figure 2 Figure 3 Figure 4 WALL MOUNT (RIGHT SI ...
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Chamberlain 3800 - page 16
16 In v isi b le Light Beam Protection Area S enso r Senso r Safety Re v ersing Sensor Bell W ire Bell W ire Motor u nit Safety Re v ersing Sensor Po w er Door Lock Q u ick-Connect Terminals W HT/BLK W HT W HT/RED W HT Sensor Connections T o Po w er Door Lock T o Ca b leT ension Monitor T o Control Console Connect W ire to Q u ick-Connect T erminal ...
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Chamberlain 3800 - page 17
17 T o prevent damage to vehicles, be sure fully open door provides adequate clearance. WARN ING CAUTION WARN ING WARN ING BLACK PURPLE Push and hold until the door is at desired UP position Figure 2 Figure 3 Push either button to stop door at desired DOWN position BLACK PURPLE Figure 4 or L O C K L IG H T Without a properly installed safety revers ...
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Chamberlain 3800 - page 18
18 ADJUSTMENT STEP 2 Setting the Force The force setting button is located on the front panel. The force setting measures the amount of force required to open and close the door . 1. Locate the purple button on the unit (Figure 1). 2. Push the purple button twice to enter unit into Force Adjustment Mode (Figure 2). The LED (Indicator Light) will fl ...
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Chamberlain 3800 - page 19
19 ADJUSTMENT STEP 3 T est the Safety Reversal System TEST • With the door fully open, place a 1-1/2" (3.8 cm) board (or a 2x4 laid flat) on the floor , centered under the garage door . • Operate the door in the down direction. The door must reverse on striking the obstruction. Upon successful safety reversal test proceed to Adjustment Ste ...
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Chamberlain 3800 - page 20
20 ADJUSTMENT STEP 5 T est Cable T ension Monitor If your cable tension monitor has been activated the LED will blink 9 times. ADJUSTMENT STEP 6 T est Power Door Lock TEST • With the door fully closed, the power door lock bolt should be protruding through the track. • Operate the door in the open direction. The power door lock should retract be ...
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Chamberlain 3800 - page 21
21 OPERA TION Using Y our Garage Door Opener Y our LiftMaster Security ✚ ® opener and hand-held remote control have been factory programmed to a matching code which changes with each use, randomly accessing over 100 billion new codes. Y our opener will operate with several Security ✚ ® remote controls up to 12 functions, and one Security ✚ ...
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Chamberlain 3800 - page 22
22 Using the W all-Mounted Control Console THE MOTION DETECTING CONTROL CONSOLE Press the push bar to open or close the door . Press again to reverse the door during the closing cycle or to stop the door while it's opening. This control console contains a motion detector that will automatically turn on the light when it detects a person enteri ...
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Chamberlain 3800 - page 23
23 CARE OF YOUR OPENER MAINTENANCE SCHEDULE Once a Month • Manually operate door . If it is unbalanced or binding, call a trained door systems technician. • Check to be sure door opens & closes fully . Adjust limits and/or force if necessary (See Adjustment Steps 1 and 2). • Repeat the safety reverse test. Make any necessary adjustments. ...
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Chamberlain 3800 - page 24
24 Having a Problem? (Continued) 5. The garage door opens and closes by itself: • Be sure that all remote control push buttons are off. • Remove the bell wire from the door control terminals and operate from the remote only . If this solves the problem, the door control is faulty (replace), or there is an intermittent short on the wire between ...
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Chamberlain 3800 - page 25
25 Y our garage door opener is programmed with self- diagnostic capabilities. The “Learn” button/diagnostic LED will flash a number of times then pause signifying it has found a potential issue. Consult Diagnostic Chart below . Diagnostic Char t Symptom: One or both of the Indicator lights on the safety reversing sensors do not glow steady . ? ...
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Chamberlain 3800 - page 26
26 *3-Button Remote If provided with your garage door opener , the large button is factory programmed to operate it. Additional buttons on any Security ✚ ® 3-Button remote or mini-remote can be programmed to operate other Security ✚ ® garage door openers. T o Erase All Codes Fr om Motor Unit Memory T o deactivate any unwanted remote, first er ...
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Chamberlain 3800 - page 27
27 1. Enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold ENTER. 2. While holding the ENTER button, press and hold the LIGHT button on the Motion Detecting Control Console. 3. Continue holding the ENTER and LIGHT buttons while you press the push bar on the Motion Detecting Control Console (all t ...
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Chamberlain 3800 - page 28
28 1. Press the “learn button” on light until LED comes ON. 2. Activate the garage door using the hand-held remote, wall control or keyless entry . 3. It has learned the code and the light turns on. Reprogramming Light or Additional Light Y our garage door opener remote work light has already been programmed at the factory to operate with your ...
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Chamberlain 3800 - page 29
29 7 10 11 6 5 NO T IC E 8 1 4 2 3 9 12 L O C K L IG H T 13 14 Installation Parts REP AIR P ARTS KEY P ART NO. NO. DESCRIPTION 1 98LM Motion detecting control panel 2 373W 3-Button remote control 3 10A20 3V2032 lithium battery 4 29B137 Remote control visor clip 5 41A4582 E mergency release rope & handle assembly 6 41B4494-1 2-Conductor bell wir ...
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Chamberlain 3800 - page 30
30 1 2 3 4 5 6 KEY P ART NO. NO. DESCRIPTION 1 41DJ001 Logic board complete with plate 2 41A61 18 Absolute Encoder System 3 41C168 T ransformer KEY P ART NO. NO. DESCRIPTION 4 41A6095 Motor with bracket 5 41B122 Power cord 6 41A6348 Cover Motor Unit Assembly Parts ...
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Chamberlain 3800 - page 31
31 L O C K L I G H T CL OS E D O P E N ACCESSORIES 370LM 41A5281 377LM Extension Brackets: (Optional) For safety reversing sensor installation onto the wall or floor . Keyless Entry with Security ✚ ® : Enables homeowner to operate garage door opener from outside by entering a password on a specially designed keyboard. Also can add a temporary pa ...
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Chamberlain 3800 - page 32
LIFTMASTER ® SER VICE IS ON CALL OUR LARGE SERVICE ORGANIZA TION SP ANS AMERICA INST ALLA TION AND SERVICE INFORMA TION IS AS NEAR AS YOUR TELEPHONE SEVEN DA YS A WEEK. SIMPL Y DIAL OUR T OLL FREE NUMBER: 1-800-528-2817 HOURS: (Central Standard Time) 6:00 A.M. TO 7:00 P .M. - Monday through Friday 8:00 A.M. TO 6:00 P .M. - Saturday www .liftmaster ...
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