MM815 Motorized Drop Down TV Mount Installation Instructions

Read this entire manual before you begin. Do not unpack box contents until verifying the requirements listed on page 2.

[Warning] This product contains small parts that can be a choking hazard. Do not let children play with any of these small parts! Keep children away from the work area during installation.

[Caution] This product is intended to be installed by professional installation contractors, or persons familiar with the tools and methods required for this installation. If you are not sure about your ability to perform this installation, you must contact a professional. MantelMount is not responsible for damage or injury caused by incorrect installation or improper use.

[Caution] Do not let children operate, pull on, or hang from MantelMount.

[Caution] Do not use this product in any way, or for any purpose, that is not specifically described in these instructions. MantelMount is not responsible for damage or injury caused by incorrect installation or improper use.

Features Include:

If you need help, call 1.800.897.9755 ext.1

For missing/damaged parts or questions during installation, contact our Customer Support team at 1.800.897.9755 ext.1 or support@mantelmount.com. Customer satisfaction is our highest priority! Access a PDF of this manual at MantelMount.com/FAQs/Specs and Manuals. For more information on MantelMount patented technology visit: www.mantelmount.com/pages/patents

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Before Installation

1. Verify TV and Mount Space Requirements:

  • Screen Size: 45" to 90" (Diagonally)
  • Mantel Depth: 16" MAXIMUM
  • For TVs Shorter than 24.7" without a soundbar, the mount will be visible in the top position.
  • Wood Studs for Mounting: Studs Maximum 28" apart; Wall Covering Maximum 5/8".
  • Weight Capacity: 20 to 115 LBS. (Including Sound Bar)
  • VESA Compliant: Up to 600 X 600mm
  • VESA Dimensions: Width: 200-700mm, Height: 100-500mm

2. Verify MantelMount Will Fit the Wall Space:

A. Measure and record the following (in inches):

  • Wall Space Height: (Distance from mantel to ceiling/crown molding.)
  • TV Height: (Include sound bar height if placing below TV.)
  • Mantel Depth: (Distance mantel extends away from the wall.)
  • Required Vertical Space: (Calculation from chart below.)

B. If the Required Vertical Space is less than or equal to the Wall Space Height, then MantelMount will fit the wall space.

Required Vertical Space Calculation based on Mantel Depth:

If Mantel Depth is:Required Vertical Space is:
Less than 8"TV height + 2"
8" – 10"TV height + 4"
10" – 12"TV height + 6"
12" – 15"TV height + 9"
16"TV height + 11"

3. Verify You Have the Required Tools:

Tools required include: Stud finder, pencil, level, awl, Allen wrenches (4mm, 5mm), socket wrench (10mm, 13mm), Phillips drill bit (7/32"), power drill, tape measurer, tape dispenser. Optional tools: Paint brush, hole saw.

4. Verify All Parts Are Included:

A comprehensive list of parts is provided on pages 21-23 of the original document. Key components include:

  • Screws for back of TV ({01} M5x12, {02} M5x30, {03} M5x40, {04} M6x16, {05} M6x30, {06} M6x40, {07} M8x15, {08} M8x25, {09} M8x45)
  • Lag Bolts {17}
  • Washers ({10} M5-M6, {11} M8)
  • Spacers {12}
  • Locknuts {23} (M6)
  • Screws {15} (M6x10), {16} (M6x12)
  • Safety Bolts {24}
  • Cable Ties {20}
  • TV Brace {33}
  • RF Remote {227}
  • Anchors {22}
  • Wall Plug {60}
  • Visual Heat Sensor {219}
  • Wall Covers {57}
  • Wall Clips {63}
  • Lifting Mechanism {35}
  • Wall Plate {32}
  • Horizontal Brace {55}
  • Vertical Braces {31}
  • Brace Extenders {30}
  • Sound Bar Wings {52}
  • Velcro Hook {25}, Velcro Loop {26}

If any parts are missing or damaged, contact Customer Support at 1-800-897-9755 x1 before installing.

Learning Your Remote Functions

The RF remote requires a CR2032 battery.

Remote Buttons:

  • Up Button: Move the mount up to the top-most position. Hold to drive to position.
  • Down Button: Move the mount down to the bottom-most set position. Mount cannot be driven lower than the set limit. Comes set for lowest bottom position. Hold to drive to position.
  • Swivel Right: Swivel the mount to the right-most set position. Mount cannot be driven past the set right limit. Comes set for 30 degrees of swivel to the right. Hold to drive to position.
  • Swivel Left: Swivel the mount to the left-most set position. Mount cannot be driven past the set left limit. Comes set for 30 degrees of swivel to the left. Hold to drive to position.
  • 1 Memory 1: Move the mount to the set 1 position. Mount will drive to this position from either direction. Does not come set out of the box. Hold to drive to position.
  • 2 Memory 2: Move the mount to the set 2 position. Mount will drive to this position from either direction. Does not come set out of the box. Hold to drive to position.
  • RUN Button: Automatically move to the selected position (1 or 2). Press Run, then press one of (1 or 2) within 3 seconds. The mount will move to the limit automatically. Press any button to stop movement. For Auto-Moving, the mount will first swivel to center position (0 degrees), adjust height, then swivel.
  • SET Button: Used to Set and Clear Positions.

Pairing RF Remote: Controller should be already paired out of the box. If not: Unplug power to mount for 30 seconds. Hold the [Down] button while plugging in power. Keep holding the button for 10 seconds.

Home Position: To return the mount to the home position, press: Run then arrow [Up]. This will Auto-Swivel the mount to the center position and raise the mount to the topmost position.

Stop: Press any button to stop movement.

Set Memory Position: To Set Positions 1, 2: Drive the mount to the desired position. Press Set. Press the Memory button (1 or 2) within 3 seconds.

System Reset: If the mount is not working as expected, it updates calibration while keeping set limits. Press Set, then Press Run, then Press/Hold Set. Mount will move to the top position. Keep holding for 5 seconds after the mount reaches the top position.

Set Left/Right/Bottom Limit: The mount will not drive past the set limit. Drive Mount to desired limit. Press Set. Press one of (Left, Right, Down). Press/Hold Set for 4 to 8 Seconds. Check it was correctly done by trying to move the mount past the limit.

Clearing Any Memory Position: A position does not need to be cleared to change it. From any position: Press Set. Press button to clear (1 or 2). Press/Hold Set for at least 11 Seconds.

Automatically Move to Position: The mount can be automatically moved to any set position without having to hold the button. To do this, press Run and then the Position Button (1 or 2). To stop movement, simply push any button on the remote. When Auto-moving, the mount will center the swivel, go to the required height, then swivel to position.

Note: Press each button firmly; a quick tap probably will not work.

MM815 Installation Steps

[Warning] Keep children away from the work area during installation. This product contains small parts, please keep out of reach from children.

[Warning] Do not remove any bolts that hold the Lifting Arm together.

[Warning] Moving the mount before all limits are set may result in damage. Complete all steps in the manual before using the mount.

[Warning] Do not let small children pull on or hang from MantelMount.

[Warning] Pinching and Crushing Hazard: The wall mount actuation is very strong, do NOT run the mount when anyone is near the mount. Do NOT have any part of the body in the mount or between the TV and Wall. The Mount will keep driving until someone pushes another button on the remote to stop it. When working on the mount, unplug the power.

[Caution] This product is intended to be installed by professional contractors or persons familiar with the tools and methods required for this installation. If you are uncertain about your ability to perform this installation, please contact a professional.

[Caution] Do not use this product for purposes not specifically described in these instructions. MantelMount is not responsible for damage or injury caused by incorrect installation or improper use.

Warranty: MantelMount offers a Lifetime Limited Warranty for all TV mounts and accessories. This Lifetime Limited Warranty covers all mechanical parts but excludes lifetime coverage for gas springs or electrical parts which are warrantied for five (5) years from the original purchase price.

Symbols Used in this Manual:

  • [Caution / Warning]
  • [Helpful Information]
  • [Do Not]
  • [Special Note]
  • [Two People Required]

Installation Tips & Videos: http://mantelmount.com/install-tips

Questions during installation? Contact Customer Support: Monday – Friday, 7am – 4pm PST. 1.800.897.9755 x1 or support@mantelmount.com

STEP 1: Attach Braces to TV

In order for the TV to hide the Mount on the wall, the Braces must be at least 3" higher than the bottom of TV (or Soundbar if one is installed). If you are using an RB100 Recess Box then they must be 6" higher to hide the Recess Box.

  1. Test-fit Brace components on back of TV. Place TV screen-side down on a flat, blanketed surface. Lay out components to check assembly configuration. If installing a sound bar, refer to STEP 1.8.
  2. Determine if TV has a flat or irregular back. An irregular back will require Spacers {12} and longer Screws to fill spaces between the Vertical Brace {31} and the TV. The Braces must be parallel to the television screen. For a flat back TV, attach Vertical Braces {31} directly. For an irregular back TV, use Spacers {12} and appropriate screws. For recessed threads, use Spacers {12} and longer screws.
  3. Select Screws and Spacers. If Spacers {12} are required, choose one of the Screw combinations shown with maximum Spacer usage, matching screw size (M5, M6, M8) to the TV's VESA mounting holes.
  4. Hand-thread screw combination into the TV. Ensure there is adequate thread engagement without hitting the bottom of the threaded insert. [Caution] Do not use screws that are too long for the TV's threaded inserts because it may damage internal components!
  5. Attach the Vertical Braces to the back of TV. Install the Vertical Braces {31} so that the bottoms of the braces are between 3" to 10" from the bottom of the TV (or Soundbar if one is installed), centering the braces vertically as much as possible. [Note] If installing with a MantelMount RB100 Recess Box, the bottom of the Vertical Brace must be 6"-10" from the bottom of TV (or 6" from the bottom of the Soundbar if one is installed).
  6. If the lower VESA holes are less than 3" from the bottom of the TV: Connect the Vertical Braces {31} through the UPPER VESA holes only. If the only option is to attach through a slot, hand-thread the screw through the slot, slide the Vertical Brace upward until the screw meets the bottom of the slot, and then tighten the screw. You must attach the Brace Extenders {30} to the Vertical Braces as described in STEP 1.7, and also attach the LOWER VESA hole through the Brace Extender. Vertical Braces must always be installed higher than the bottom of the TV.
  7. Attach the Horizontal Brace to Brace Extenders. Slide one Brace Extender {30} onto the left end of the Horizontal Brace {55}, then slide the other Brace Extender onto the opposite right end. Align the Brace Extenders with the Vertical Braces (that are already mounted to the back of the TV) while positioning the Horizontal Brace so that it extends an equal amount on either side of the Brace Extenders. Attach Horizontal Brace to Brace Extenders with Screws {15}.
  8. Optional: Attach Sound Bar Wings. Use Screws {16}, M6 Washers {10}, and Nuts {23} to attach the Sound Bar Wings {52} to the Horizontal Brace {55}. Position the Wings to fit the mounting holes of the sound bar. Install sound bar. Arrange Sound Bar Wings and sound bar to work with the Visual Heat Sensor {219}. The Sound Bar Wings may be positioned and rotated so that the Visual Heat Sensor will reach below the sound bar. For example, if a sound bar is tall, the Brace Extenders {30} and Horizontal Brace can be attached lower down on the Vertical Braces toward the bottom of the sound bar while the Wings point upwards in order to align with the sound bar's installation holes.
  9. Attach Visual Heat Sensor to the Horizontal Brace. Attach the Visual Heat Sensor {219} with Screws {15} to the Horizontal Brace {55}. Set the height so the Visual Heat Sensor is as visible as desired. [Note] If using the minimum height from the chart in Step 2.2, keep the exposed heat sensor pad no more than 1" below the TV or soundbar. When first moving the mount down, ensure the visual heat sensor clears the mantel. The Visual Heat Sensor turns red if the temperature above the fireplace exceeds a safe 110°F – a visual cue that either the TV needs to be raised to the UP position or the fireplace needs to be turned off.

STEP 2: Determine Wall Placement

  1. Measure the distance from the bottom of the Vertical Braces {31} (not the Extenders) to the bottom of the TV/sound bar.
  2. Determine the minimum vertical position of the Wall Plate. Use the Look-up Table below to find the minimum distance between the mantel and the bottom of the lower Wall Plate {32}. This will be the intersection of the distance from STEP 2.1 and the mantel depth. Write the minimum distance in the box below.

Look-up Table for Minimum Distance Between Mantel and Lower Wall Plate Holes:

Distance from STEP 2.1Mantel Depth
8" or Less9"10"11"12"13"14"15"16"
3"3"3.50"3.75"4"4.50"4.75"5"5.50"5.75"
4"4"4.50"4.75"5"5.50"5.75"6"6.50"6.75"
5"5"5.50"5.75"6"6.50"6.75"7"7.50"7.75"
6"6"6.50"6.75"7"7.50"7.75"8"8.50"8.75"
7"7"7.50"7.75"8"8.50"8.75"9"9.50"9.75"
8"8"8.50"8.75"9"9.50"9.75"10"10.50"10.75"
9"9"9.50"9.75"10"10.50"10.75"11"11.50"11.80"
10"10"10.50"10.75"11"11.50"11.80"12"12.50"12.80"
11"11"11.50"11.80"12"12.30"12.50"13"13.30"13.50"
12"12"12.50"12.80"13"13.30"13.50"14"14.30"14.50"
13"13"13.50"13.80"14"14.30"14.50"15"15.30"15.50"
14"14"14.50"14.80"15"15.30"15.50"16"16.30"16.50"
15"15"15.50"15.75"16"16.30"16.50"17"17.30"17.50"
16"16"16.50"16.75"17"17.30"17.50"18"18.30"18.50"

[Note] Most customers want their TV mounted as close to the mantel as possible. If this describes you, go directly to STEP 2.4. However, if you want the TV higher on the wall (e.g., centered between the mantel and ceiling) for extra space on the mantel for pictures or a center speaker, continue to STEP 2.3.

  1. Determine a higher vertical position of the Wall Plate (Optional). Some customers want the TV centered between the mantel and the ceiling or crown molding, or want space below the TV for pictures or a center speaker. The TV's position on the wall is directly related to the placement of the lower Wall Plate. To determine where to place the lower Wall Plate, choose an option below and fill in the boxes. [Note] Distance "E" below must always be at least the minimum distance in STEP 2.2.
    • Option 1: Center TV between mantel and ceiling/crown molding. Record Wall Space Height (A) and TV Height (B). Calculate (A) - (B) = (D). Then, (C) + (D) = (E), where (C) is the distance from STEP 2.1.
    • Option 2: Specific distance above mantel. Record distance from STEP 2.1 (C). Write the specific number of inches you want between the mantel and the TV (or TV with sound bar) (D). Then, (C) + (D) = (E).

    Distance between mantel and lower wall plate holes = (E)

  2. Find the center of your mantel and the centers of two studs. Measure and mark the center line of the mantel onto the wall with tape. Use a stud finder to locate two studs, one on each side of the centerline. At the height determined from Step 2.2 or 2.3, locate the center of the stud(s) by poking a sharp awl or finish nail through the drywall to find each stud edge. Mark these center spots on the wall. Lag Bolts must be installed into the CENTER of the studs.
  3. Position the Wall Plate {32} and mark holes. Align the arrows on the Wall Plate {32} pointing upward. Center and level the plate above the mantle, positioning the height using the table in STEP 2.2. Mark the 4 spots for lag bolts directly on the center of the studs.
  4. Pre-drill the 4 holes. Use a 7/32" drill bit to a depth of 2.5 inches (65mm) including wall covering. [Note] Wall covering (drywall) must not exceed 5/8" thickness.
  5. If necessary, move Wall Plates to clear an outlet. If a Wall Plate installation is impeded by an electrical outlet or other obstruction and relocating the outlet is impossible, try moving the Wall Plates up or down to clear the outlet, leaving them as close as possible to the originally planned vertical positions. [Important] You must now move the Vertical Braces {31} on the back of the TV using the same number of inches used to move the Wall Plates (e.g., move the Vertical Braces down 2" if the Wall Plates were moved down by 2"). The bottom of the Vertical Braces must remain between 3" to 10" from the bottom of the TV. [Note] If the outlet is directly behind the Lifting Arm, the only solution is to move the Wall Plates up, following the same adjustment procedure for the Vertical Braces.

STEP 3: Attach Mount to Wall

  1. Attach the Wall Plate {32} with arrows up, using Lag Bolts {17} and Washers {11} directly into the centers of the studs. Use a 13mm wrench. [Note] Do not overtighten Lag Bolts {17}. Tighten only until the washers are firmly against the wall plate. Damage due to overtightening can cause property damage or injury.
  2. Insert bottom tabs of Lifting Mechanism {35} into the slots of Wall Plate {32} then slide the top into position. Align all four holes and install Screws {14}. Tighten securely. [Note] Do NOT let go of Lifting Mechanism {35} until Screws {14} are installed.
  3. Power up the mount. Plug Power Supply into mount then into wall socket. The TV remote should work out of the box. Move Mount Down 2 Inches by holding the [Down] button. If TV remote does not work, it needs to be paired. To Pair Remote: 1. Unplug Power to mount for 30 seconds. 2. Hold the [Down] button while plugging in power. 3. Keep holding [Down] button for around 10 seconds until mount moves down.
  4. Run System Reset. System reset ensures software is running correctly. Press Set, then Press Run, then Press/Hold Set. Mount will move to the top position. Keep holding for 5 seconds after mount reaches top position.
  5. Programming Bottom Stop. [Warning] Damage will occur if the Mount can drive down into something; the bottom stop needs to be set. If the mount would hit the Mantel or some other object in the bottom position, you can easily reduce the bottom-most [Down] position so that the mount cannot move past that point. 1. Drive mount to the desired Bottom-most Position by holding [Down]. 2. Do NOT allow the mount to run into anything. 3. Press Set. 4. Press [Down]. 5. Press/Hold Set for 4 to 8 Seconds. 6. Check it was correctly done by trying to move the mount down farther. [Note] To delete the bottom stop, follow steps 3 to 6 but hold the set button for more than 10 seconds in step 5.
  6. Swivel Safety Clutch. The Swivel on the mount has a friction clutch that automatically disengages to avoid damage if the mount swivels into something, or someone swivels the mount manually. If that happens, the swivel will be out of position and the swivel will not work as expected. The swivel needs to be recalibrated right away to avoid damage. To recalibrate: Auto-move the mount to the top position by pressing Run, then pressing [Up] within 3 seconds. The mount will automatically move to the top position and recalibrate. You can also run the Reset Function to recalibrate. [Note] If the clutch is engaged, the mount may swivel a little when coming down. To fix this, manually center the mount at zero degrees swivel by rotating the TV with hands and overriding the clutch. The mount is at zero degrees swivel after you recalibrate (drive the mount to the top position), then move the mount straight down.
  7. Attach the TV Brace {33} to the lifting arm {35}. Manually swiveling the Swivel Plate will make accessing the screw holes easier. Level the TV Brace and tighten the 4 screws {15}. [Note] After the TV is mounted to the bracket, you may need to adjust these screws to make final Post-Leveling adjustments (Step 5.6).

STEP 4: Attach TV to Mount

[Note] These Next Steps Will Require Two People.

[Warning] Do Not put hands into Lifting Mechanism. The power of the Lifting Mechanism can cause bodily injury!

[Warning] Pinching and Crushing Hazard. The wall mount actuation is very strong, do NOT run the mount when anyone is near the mount. Do NOT have any part of the body in the mount or between the TV and Wall. The Mount will keep driving until someone pushes another button on the remote to stop it. When working on the mount, unplug the power. Never allow small children to play around or operate the MantelMount. Property damage or personal injury can occur.

  1. This step requires two people. Carefully hang the Television onto the TV Brace {33} making sure that both hooks on the Vertical Braces {31} engage the TV Brace {33}.
  2. Center the TV on the TV Frame and check it with a level. Carefully slide the TV sideways, if required, until it is balanced and horizontal, up to a MAXIMUM OF 2 INCHES left or right. The TV would only need to be moved off-center if it has an unbalanced weight. If the TV needs to be moved sideways and is visually too much off-center above the mantel, remove the TV and relocate the Wall Plate {32} an equal distance but in the opposite direction of the TV to compensate.
  3. Install 4 Screws {15} through the TV Brace {33} and into the Vertical Braces {31}.
  4. Attach cable ties to lower arm. Shown below is the easiest way to attach cables. Use the included Cable Ties {24} to attach cables so they attach to the underside of the Lower Arm, making a gentle loop. Cables should be long enough to accommodate the extension and swivel of MantelMount. Check all ranges of motion before tightening the Cable Ties.
  5. Attach the electrical and signal cables to the TV. Run signal cables through the open loop. Give each segment of the cables extra length so that they are not stressed or kinked when the mount moves. Ensure that cables do not get pinched within the Lifting Arm when the TV is raised.

STEP 5: Make Final Adjustments

The mount has several adjustments for optimal performance:

  • Centering Cam Swivel Hardstop
  • Top Tilt Adjust
  • Post-Leveling
  • Bottom Tilt Adjust
  1. Programming Left/Right Stop. If the mount would swivel into the Mantel or some other object in the bottom position, you can easily reduce the right and left swivel limits so that the mount cannot move past them. 1. Press Run then [Up] to calibrate (Mount should move all the way to the Top Position). 2. Drive mount to the Bottom Position. 3. Press and hold [Left] or [Right] to swivel mount as far as wanted. 4. Press Set. 5. Press [Left] or [Right]. 6. Press/Hold Set for 4 to 8 Seconds. 7. Check it was correctly done by trying to move the mount past the set swivel. [Note] To delete the swivel soft stop, follow steps 3 to 6 but hold the set button for more than 10 seconds in step 6.
  2. Adjust the Side Swivel Stop positions, if necessary. To keep the TV from bumping the mantel or wall, loosen the Locknuts {23} and adjust the Swivel Stop Screws to the desired stopping left and right positions. Tighten both Locknuts after the adjustments are made. Mechanical Swivel Stops should be just past the programmed swivel stop. If a small amount or no swivel is desired, it may be necessary to remove the Screw and/or Locknuts and reattach them on the other side of the Swivel Bracket. [Note] To better access swivel stop adjustments screws, swivel the mount to the left or right to gain better access.
  3. Centering Cam Adjustment. The Centering Cam automatically swivels the TV to center while raising to avoid permanent obstacles. Out of the box, they are set for max protection; to get more possible swivel, follow below steps. [Warning] Ensure Cams are set to avoid damage. Steps to Set Cam: 1. Move TV to Out Position. 2. Swivel TV so that it is near the wall or mantel. 3. Swing Centering Cam forward until Cam Rollers contact. 4. Tighten Cam Nut. 5. Repeat on other side. 6. Swivel the TV and hold the UP button to ensure it is set so that the TV can swivel as much as possible in either direction without it hitting. (A. Cam Nut, B. Centering Cam, C. Cam Contact Rollers)
  4. Bottom and Out Tilt Adjustment. To adjust the tilt in all positions besides the Top Position: 1. Adjust Tilt Adjustment Screw with a 10mm Wrench. Tighten (Clockwise) to tilt TV up. Loosen (Counterclockwise) to tilt TV down.
  5. Top Position Tilt Fine Adjustment. TV Tilt in the Top Position can be fine-tuned: 1. Drive the Mount to the Topmost Position to check Tilt. 2. Drive the Mount down to access Adjustment Screws. 3. Adjustments must be done the same on each side of the mount. 4. Loosen the Lock Nuts. 5. Adjust Tilt Adjustment Screws. 6. Tighten (Clockwise) to tilt TV down. 7. Loosen (Counterclockwise) to tilt TV up. 8. Check the settings are the same on both sides. 9. Drive Mount to Topmost Position to check Tilt. 10. Repeat steps 2-9 until satisfied. 11. Tighten Lock Nuts.
  6. Make Post-Leveling adjustments, if necessary. Place a level on top of the TV while it's in the UP position. If it's level, the installation is complete! If not, slightly loosen all four Leveling Screws {15} and rotate the TV until it's level, and then tighten all the Screws.
  7. Set Memory Position. To Set Positions 1, 2: There are 2 settable Positions which can be set. 1. Drive the mount to the desired Position. 2. Press Set. 3. Press the Memory (Button 1 or 2) Button within 3 seconds. [Quick Note] To return mount to the home position press: Run then arrow [Up]. This will Auto-Swivel and move mount to the topmost position.
  8. Paint the Wall Covers {57} if desired.
  9. Attach the eight Wall Cover Clips {63} to the wall frame as shown below. These will be used to attach the adhesive Velcro strips that hold the wall covers to the wall frame.
  10. Install the Wall Covers using the included adhesive Velcro strips. Attach the Hook {25} and Loop {26} strips together onto the Wall Cover Clips, and then press the Wall Covers into the correct position onto the Wall Plate. This will properly align the velcro onto the Wall Covers.

Troubleshooting Tips

Customer satisfaction is our top priority! Following are solutions for the most common installation challenges. For further assistance, visit www.mantelmount.com/troubleshooting or contact Customer Support at 1-800-897-9755 ext.1 or support@mantelmount.com, Monday through Friday, 7am to 4pm PST.

[Note] In rare cases, one troubleshooting adjustment may create the need for another. Be prepared for some trial and error.

Mount Space Issues:

  • Issue: The wall covering is made of brick or stone.
  • Solution: It's possible to install MantelMount by using concrete anchors (included) with the Lag Bolts {17}, PROVIDED the brick/stone/wall is structurally sound, several inches thick, and can handle four times the weight of the TV and mount. Working with a concrete/masonry professional for this type of installation is recommended. Please contact Customer Support for guidance before attempting installation.
  • Issue: A single wood stud is centered on my wall.
  • Solution: MantelMount recommends adding more support so the mount can attach to the equivalent of 2 studs.

Mount Performance Issues:

  • Issue: Swivel is off.
  • Solution: Swivel needs to be recalibrated. Press Run, then press [Up] within 3 seconds to allow the Mount to move all the way to the top position. The Mount should be recalibrated. You can also run the Reset Function to recalibrate. See page 5. [Note] The Swivel on the mount has a friction clutch that automatically disengages to avoid damage if the mount swivels into something, or someone swivels the mount manually. If that happens, the swivel will be out of position and the swivel will not work as expected. The swivel needs to be recalibrated right away to avoid damage. To recalibrate: Auto-move the mount to the top position by pressing Run, then pressing [Up] within 3 seconds.
  • Issue: TV isn't vertical in out and bottom positions.
  • Solution: See step 5.4 to adjust the Bottom/Out Position tilt.
  • Issue: TV isn't vertical in the Top Position.
  • Solution: See step 5.5 to adjust the Top Position tilt.
  • Issue: TV is not returning to the same memory position.
  • Solution: 1. Press Run. 2. Press [1] or [2] within 3 seconds. 3. Allow Mount to move all the way to the top position and wait 5 seconds. 4. Mount should be recalibrated. 5. Or run System reset, See page 5.
  • Issue: Mount does not move.
  • Solution: There are a few things to try: 1. Run System Reset, see page 5. 2. Check that power is getting to the mount by making sure there is a green light shining on the plug. 3. Replace the CR2032 battery in the remote. 4. Check that the wires in the mount are plugged in and not damaged. 5. Pair the RF remote, see Step 3.3. 6. Maybe the Bottom Limit got set too high; clear the Bottom Travel Limit, see Page 5. [Warning] The mount can now travel all the way down and the Bottom Limit will have to be redone, see section 3.5.
  • Issue: Mount is acting weird.
  • Solution: Run System Reset, see Page 5.
  • Issue: Mount swivels a little when coming down.
  • Solution: Manually center mount at zero degree swivel by rotating TV with hands and overriding clutch. Mount is at zero degrees swivel after you recalibrate (drive the mount to the top position), then move the mount straight down.

TV Leveling Issues:

  • Issue: TV is not level in the UP and/or DOWN positions.
  • Possible Cause: The mantel, ceiling or floor may not be level. Vertical Braces aren't evenly attached to the back of the TV. Wall Plates aren't level. The Top Stops aren't evenly set. TV is heavier on one side.
  • How to Check: Compare TV level with that of the mantel and floor. Look at the back of the TV and ensure that the top of the Vertical Braces are offset from the top of the TV the same distance. Use a level on top of Wall Plates to verify that it's not level. Use a level to verify the TV is level in the UP position but not in the DOWN position, or vice versa.
  • Solution: 1. Adjust until visibly satisfactory. 2. Move the TV down. 3. Make Post Leveling adjustments (Step 5.6) and match the level readings of the mantel with the TV. 4. Ensure Top Tilt Adjustment is the same on each side of the mount, see Step 5.5.
  • Issue: TV is level in the UP position, but unleveled in the DOWN position, or vice versa.
  • Solution: Follow the instructions in Step 5.5. Be prepared for some trial and error. If adjusting the Top Stops doesn't solve the problem, try the solution below for when a TV is heavier on one side.
  • Issue: TV is heavier on one side.
  • Solution: 1. Remove electrical and signal cables (Step 4.5). 2. Detach the TV Brace from the Vertical Braces (Step 4.4). 3. Remove the TV from the TV Brace (Step 4.2) and lay TV face down on a blanketed surface (Step 1.1). 4. Remove the Vertical Brace(s) as necessary. 5. Reposition the Vertical Braces so that they are properly parallel to one another, then repeat Step 1, Step 4 and if necessary, Step 5.
  • Issue: Wall Plates aren't level.
  • Solution: 1. Remove electrical and signal cables (Step 4.5). 2. Detach TV Brace from Vertical Braces (Step 4.4). 3. Remove the TV from the TV Brace (Step 4.2) and lay TV face down on a blanketed surface (Step 1.1). 4. Slightly loosen all four Lag Bolts (Step 3.1). 5. Adjust Wall Plates so that they are level. 6. Hold Wall Plates in level position and firmly tighten the four Lag Bolts. Heed warning in Step 3.1. 7. Once the Wall Plates are level, repeat Steps 3, 4 and 5.
  • Issue: TV is heavier on one side.
  • Solution: Attach a counterweight to the back of the TV. Contact Customer Support for assistance.

Parts List

For missing/damaged parts or questions during installation, please contact our Customer Support team at 1.800.897.9755 ext.1 or support@mantelmount.com. Customer satisfaction is our highest priority!

ITEM #PART #DESCRIPTIONQTY.
112189M5 x 124
212190M5 x 304
312191M5 x 404
412195M6 x 164
512194M6 x 304
612193M6 x 404
712197M8 x 154
812198M8 x 254
912199M8 x 454
1012166Washer M68
1114126Washer M8 x 212
1212122Spacer12
1412176BHCS M8x168
1512178Round Head Screw M6 x 1212
1615083CARRIAGE BOLT M6 X 124
1712154Lag Bolt M8 x 604
1812255Round Head Screw M6 x 404
20MM815 ManualMM815 Instruction Manual1
2312183Locknut M613
2412162Cable Tie16
2512139Velcro Strip Hook8
2612141Velcro Strip Loop8
3014056Brace Extender2
3114038TV Vertical Brace2
3213011Wall Frame1
3324030TV Frame1
4912222Handle Rubber, Temp Change2
5215010Sound Bar Wing2
5514060TV Horizontal Brace1
5712113Wall Cover2
6024127TP7 Plug Bushing1
6312115Wall Cover Clip8
21924219MM815 Temp Display1
20124201MM815 Wall Bracket1
20224202MM815 Upper Arm1
20324203MM815 Lower Arm1
20424204MM815 Swivel Plate1
20524205MM815 Centering Cam2
20624206MM815 Bottom Tilt Adjust1
20724207MM815 Motor Coupling1
20824208MM815 Clutch Preload1
20924209MM815 M6 Bushing3
21024210MM815 Motor Attach1
21124211MM815 Motor Spacer4
21224212MM815 Swivel Spacer2
21324213MM815 Controller Holder1
21424214MM815 Centering Roller4
21524215MM815 TV Side Shaft1
21624216MM815 TV Shaft Spacer2
21724217MM815 Actuator Adjust1
21824218MM815 TA16 Actuator1
22024220MM815 Swivel Motor1
22124221MM815 Custom M8 HHCS1
22224222MM815 Bot Tilt Spacer Short1
22324223MM815 Bot Tilt Spacer Long1
22424224MM815 Actuator Pin TV Side1
22624226MM815 TFH22 RF Remote1
22724227MM815 TC7 Controller1
22824228MM815 Actuator Adjust Pin1
22924229MM815 Bot Tilt Spacer Med1
23024230MM815 Actuator Adjust Spacer1
23124231MM815 Swivel Wire1
23224232M5x8 Set Screw, McM 91390A1174
25224252M6x12 Shoulder Bolt, McM 92981A1014
25324253M6x22 BHCS4
25524255M4 ID 22 OD, McM 91100A1302
25624256M4 Rubber Washer, McM 90133A0172
25724257M6x60 Shoulder Bolt, McM 92981A1091
25924259M3x8 SHCS4
26024260M6 15OD Belleville, McM 96445K2941
26124261M5x45 SHCS4
26224262M6x20 Shoulder Bolt, McM 92981A1031
26424264M6x15 Shoulder Bolt, McM 92981A7511
26524265M6x100 SHCS Fully Threaded1
26624266M6x30 BHCS1
26724267M3x35 SHCS2
26824268M2.5x16 Cotter Pin, McM 98350A6211
26924269M10x110 Full Thread SHCS1
27024270M10x40 SHCS1
27124271M10 Nut, McM 90592A0243
27224272M6 Washer 30 OD 1 Thick1
27324273M8x81
Models: MM815 Motorized Drop Down TV Mount, MM815, Motorized Drop Down TV Mount, Drop Down TV Mount, Down TV Mount, TV Mount, Mount

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