Garage Door Part Diagram Your Comprehensive Guide

June 4, 2025February 5, 2025 by Hampton

Garage door part diagram – unlocking the secrets to smooth operation and lasting performance. Imagine effortlessly navigating the intricacies of your garage door mechanism, from the powerful springs to the precise rollers. This guide provides a detailed exploration, revealing the inner workings of your garage door, empowering you with the knowledge to maintain, repair, and troubleshoot with confidence.

This comprehensive resource dives deep into the world of garage door parts. We’ll cover everything from basic components to advanced troubleshooting, ensuring you’re well-equipped to handle any issue that arises. Expect clear explanations, helpful diagrams, and actionable steps to keep your garage door running smoothly for years to come. Whether you’re a seasoned DIY enthusiast or a complete novice, this guide provides a user-friendly roadmap to understanding and maintaining your garage door.

Table of Contents

Introduction to Garage Door Parts

Your garage door, a silent guardian of your belongings, is a marvel of engineering. Understanding its intricate parts allows you to appreciate its functionality and potential problems. This exploration will delve into the key components, their functions, and even a comparison of different opener types. Let’s unlock the secrets behind this essential home feature.This comprehensive guide provides a clear understanding of each part and its role in the overall operation of your garage door system.

From the robust lifting mechanism to the resilient door panels, each component plays a vital part in the smooth and safe operation of your garage door.

Garage Door Components

The garage door system is composed of several crucial parts working together seamlessly. These parts include the door panel itself, the lifting system (including the opener), and the operator.

The door panel is the visible part of the garage door. It’s often constructed from steel, aluminum, or composite materials. The panel’s material and design significantly affect the door’s strength, insulation, and overall aesthetic appeal. Proper maintenance of the panel is crucial to preventing warping or damage, ensuring the door operates smoothly for years to come.
The lifting system, often hidden from view, is the heart of the garage door’s operation. This system consists of tracks, rollers, springs, and cables. The tracks guide the door’s movement, the rollers provide smooth operation, the springs store the energy for lifting, and the cables connect the lifting system to the door panel. The integrity of these components directly impacts the door’s performance and longevity.
The operator, usually an electric motor, is the control center of the lifting system. The operator receives signals from the remote or wall button, initiating the door’s opening and closing. Modern operators come in various types, each with its own set of advantages and disadvantages.

Types of Garage Door Openers

Different types of garage door openers cater to various needs and preferences.

Type	Mechanism	Pros	Cons
Chain Drive	Uses a chain to transmit power from the motor to the door.	Generally less expensive.	Can be noisy and less smooth than other types. Chain can wear out and break, requiring replacement.
Belt Drive	Uses a belt to transmit power.	Quieter and smoother operation. More durable and efficient. Less maintenance.	Can be more expensive than chain drive openers.
Screw Drive	Uses a screw mechanism to lift the door.	Known for reliability and durability.	Often louder than belt drive.

Understanding Garage Door Part Diagrams

Garage door repair can be a breeze with the right tools – and those tools often include diagrams. They’re your secret weapon for deciphering the inner workings of your garage door, helping you identify problems and even DIY repairs. Imagine knowing exactly which spring is bad or where the cable is frayed – diagrams make that clarity a reality.Part diagrams are like blueprints for your garage door.

They provide a visual representation of all the components and how they fit together. This visual understanding is invaluable, especially when troubleshooting or replacing parts. Armed with this knowledge, you can confidently navigate the intricate mechanisms and make informed decisions about repairs or replacements.

The Power of Visual Representation

Diagrams are crucial for understanding the complex interplay of parts within a garage door system. They show the precise placement and function of every component, from the hefty springs to the delicate cables. Without them, you’re essentially navigating a maze, potentially making mistakes that could lead to further damage. Diagrams bring clarity to the chaos, making the whole process far less daunting.

Common Symbols Used in Diagrams

Garage door diagrams often employ standardized symbols to represent different components. These symbols are like a universal language, allowing anyone to understand the diagram, regardless of their background. A spring might be depicted with a coil, a cable with a series of lines, and a pulley with a circle and a central axle. Understanding these common symbols is essential to interpreting the diagram correctly.

Consistency in symbols across different diagrams further simplifies the learning process.

Comparing Diagram Styles, Garage door part diagram

Various diagram styles enhance understanding in different ways. Exploded views, for instance, showcase the different parts separated, highlighting how they connect. Cutaway views reveal the interior components, enabling a deeper understanding of the mechanism’s inner workings. A cross-section view might display the layers of a particular part, showing its construction and assembly. The choice of style depends on the specific information the diagram aims to convey.

Interpreting a Diagram to Identify a Part

Let’s say you need to replace a specific part. Locate the part in the diagram. Look for its specific markings or labels. Compare the diagram’s representation with the actual part you need to replace. Matching the physical part with the diagram will guarantee that you order the correct component for a successful replacement.

Pay attention to the part numbers and dimensions to ensure accurate ordering. For example, if the diagram shows a specific spring with a label like “Torsion Spring 100lb,” you need to confirm the correct type and load capacity.

Identifying Specific Parts

Unlocking the secrets of your garage door’s inner workings is like discovering a hidden treasure map! Knowing which parts are crucial for smooth operation and when they need replacing is key to maintaining a reliable and functional garage door. This journey into the heart of your garage door system will reveal the heroes of its operation and the common culprits of occasional malfunctions.Understanding the specific functions of each part allows you to diagnose problems effectively and potentially save on costly repairs.

Whether it’s a stubborn spring, a squeaking hinge, or a roller that’s lost its grip, this guide will equip you with the knowledge to troubleshoot and maintain your garage door with confidence.

Frequently Replaced Parts

Knowing which components tend to wear down or break down is critical to preventing costly repairs. Regular inspection and timely replacement can avoid unexpected malfunctions and costly service calls. Here are some commonly replaced garage door parts:

Torsion Springs: These springs are the heart of the garage door’s lifting mechanism. They store the energy needed to raise and lower the door. Over time, torsion springs can weaken, leading to potential safety hazards. Signs of a failing spring include a grinding or popping sound when the door moves or the door becoming increasingly difficult to open or close.

Professional installation is crucial for these components, due to their significant potential for danger.
Extension Springs: These springs, used in some older garage door designs, also power the lifting mechanism. They are typically less prone to failure compared to torsion springs, but they still need periodic checks. Signs of wear include a noticeable weakening of the lifting force, unusual noises, and possible distortion or damage.
Rollers: These crucial components guide the door along its tracks. As they experience wear and tear, they can cause friction and squeaking. Damaged rollers can affect the door’s smooth operation, making it noisy and potentially dangerous.
Hinges: Hinges connect the sections of the garage door. They often wear down due to the repeated stress of opening and closing. Signs of worn hinges include excessive noise, and potential damage or breakage.
Track Sections: The tracks that guide the door’s movement often become damaged, bent, or loose over time. This can result in a rough, uneven motion. They can be damaged by objects or due to general wear and tear. A professional should be consulted when making repairs to tracks, as improper adjustment can lead to severe damage.

Characteristics and Features

Understanding the characteristics and features of each part allows for more precise identification and diagnosis.

Torsion Springs: Different sizes and types of torsion springs are designed for various garage door weights. Knowing the correct spring type is crucial to ensure safe and effective operation. A garage door’s springs can have different tensions and need to be handled with extreme caution, given their potential for injury.
Extension Springs: Extension springs are often paired with safety cables to prevent them from snapping or breaking free. These springs are also available in different tensions and configurations, matching different garage door designs and weights. It is crucial to ensure the right type of spring is installed for the specific door design.
Rollers: The rollers should move smoothly along the tracks, with minimal friction. Proper lubrication and regular maintenance can help prevent squeaking and ensure smooth operation. The rollers are often made of different materials, such as steel, plastic, or composite, each with varying levels of durability.
Hinges: Hinges are designed to securely connect the garage door sections. The design and materials vary based on the specific garage door model and intended lifespan. They are designed to withstand the repeated stress of opening and closing the door.
Track Sections: The tracks are typically made of steel or aluminum, offering different levels of durability. A professional should be consulted to ensure proper adjustments to the tracks, and the installation is done correctly to ensure longevity.

Role in Garage Door Operation

Each component plays a vital role in the smooth operation of your garage door.

Torsion Springs: Torsion springs store the energy required to raise and lower the garage door. They are crucial for the door’s smooth movement.
Extension Springs: Extension springs also store the energy for lifting and lowering, and they are critical for the efficient movement of the garage door.
Rollers: Rollers guide the garage door along its tracks, ensuring smooth and uninterrupted movement.
Hinges: Hinges connect the sections of the garage door, allowing for smooth and safe movement of the sections during operation.
Track Sections: The tracks are the guide rails for the garage door. They ensure the door moves smoothly and safely.

Different Types of Springs, Hinges, and Rollers

The types of springs, hinges, and rollers vary based on the specific garage door model and intended lifespan.

Component	Types	Description
Springs	Torsion, Extension	Torsion springs are wound around a shaft, while extension springs stretch and compress. Different types are designed for different garage door weights.
Hinges	Various types based on door design	Different types of hinges are used to connect the sections of the garage door. They vary in design and material based on the garage door’s specific configuration.
Rollers	Steel, Nylon, Composite	Garage door rollers come in different materials, each with varying levels of durability and resistance to wear and tear.

Troubleshooting with Diagrams

Unraveling the mysteries of a malfunctioning garage door can feel like deciphering a cryptic code. But fear not, intrepid door-dwellers! Garage door diagrams are your trusty decoder rings, offering a visual roadmap to the source of the problem. With a little understanding and a keen eye, you can quickly pinpoint the culprit and get your garage door back on track.Mastering the art of garage door troubleshooting is a blend of understanding the parts and knowing how they work together.

Diagrams are your secret weapon, allowing you to visualize the inner workings and identify potential points of failure. By following the steps Artikeld below, you can transform from a puzzled homeowner to a garage door guru.

How Diagrams Help in Troubleshooting

Garage door diagrams are more than just pretty pictures. They’re crucial tools for understanding the complex interplay of parts within your garage door system. They provide a visual representation of the mechanical components, clearly illustrating their connections and functions. This visual clarity is invaluable in pinpointing the source of a problem, saving you time and potentially significant repair costs.

For example, a diagram can quickly reveal whether the issue lies with the opener, the springs, the rollers, or the sensors.

Locating Faulty Components

Troubleshooting a garage door involves a systematic approach. First, identify the specific problem. Is the door not opening? Is it making unusual noises? Is it getting stuck?

Once you’ve identified the symptom, consult your garage door’s specific diagram. The diagram will highlight the components directly related to the problem. For instance, if the door is not opening, the diagram will show the chain drive, the gears, the springs, and other related components, allowing you to focus your attention on these specific areas. Carefully examine each component, looking for any signs of damage, misalignment, or wear.

Common Garage Door Problems and Solutions

Problem	Potential Cause (Based on Diagram)	Solution
Door won’t open	Faulty opener motor, broken spring, jammed rollers, or faulty sensors.	Check the opener’s power supply and motor for any obvious issues. Inspect springs for damage. Lubricate rollers. Verify sensor alignment.
Door gets stuck	Obstruction, malfunctioning safety sensors, bent track, or seized hinges.	Clear any obstructions. Reset or repair the sensors. Straighten the track or replace damaged components. Lubricate hinges.
Door is off-track	Loose or damaged rollers, misaligned track, or broken brackets.	Tighten or replace loose rollers. Repair or replace damaged track. Ensure brackets are securely attached.
Loud noises	Loose or damaged components, misaligned gears, or worn chains.	Tighten loose components. Adjust gears if misaligned. Replace worn chains.

Identifying the Source of a Problem

To diagnose a specific problem, carefully follow these steps using the accompanying diagram:

Precisely define the issue. Is it a problem with the door’s movement, its operation, or something else?
Locate the relevant components on the diagram that relate to the identified issue.
Visually inspect each of these components for any visible damage, misalignment, or signs of wear.
Consider the function of each part to determine its potential role in the problem.
Compare the identified problems with the common garage door issues and solutions table to narrow down the potential causes.

By methodically following these steps, you can effectively pinpoint the source of the problem and implement the appropriate solution.

Maintenance and Repair Procedures

Keeping your garage door in tip-top shape isn’t rocket science, but it does require a little know-how and a dash of preventative care. Regular maintenance is key to a smooth-running door that’s reliable and long-lasting. This section will guide you through essential maintenance steps and demonstrate how diagrams empower you to handle repairs with confidence.Understanding your garage door’s inner workings empowers you to address issues before they escalate into costly repairs.

By following the scheduled maintenance Artikeld below, you’ll be well on your way to years of trouble-free operation.

Maintaining Different Garage Door Components

Regular maintenance is your best defense against costly repairs down the road. Proactive care ensures your garage door functions optimally and provides years of dependable service. This section Artikels the vital steps to keep each component humming along smoothly.

Springs: Inspect springs for any signs of damage or stretching. Ensure they are properly lubricated with a garage door-specific lubricant. Never attempt to adjust or replace springs yourself unless you’re a certified technician. Ignoring this can lead to dangerous situations.
Rails and Rollers: Inspect rollers and tracks for any signs of wear or damage. Regular lubrication can significantly extend their lifespan. Clean any debris or dirt that may be accumulating.
Sections: Check the panels for any signs of dents, cracks, or warping. Assess the overall condition of the door sections for any signs of damage. Regular visual inspections are crucial in preventing potential issues.
Hardware: Inspect all hardware components, including hinges, brackets, and fasteners, for any signs of damage or loosening. Tighten loose fasteners and replace damaged components as needed. Pay close attention to bolts and screws.

Recommended Maintenance Intervals

A well-maintained garage door is a happy garage door. Knowing the recommended maintenance intervals allows you to schedule these tasks proactively.

Component	Recommended Maintenance Interval
Springs	Annually or every 6 months, depending on usage
Rails and Rollers	Quarterly or every 3 months
Sections	Monthly visual inspection
Hardware	Monthly visual inspection

Diagrams for Understanding Repair Procedures

Garage door diagrams act as your visual guides, showing the layout of components and their interconnections. They make the repair process more intuitive and less daunting. This section highlights the power of diagrams.

Diagrams provide a clear and concise visual representation of the parts and their relationship, making troubleshooting and repair more straightforward.

Understanding the parts of a diagram enables you to identify the root cause of a problem, potentially saving time and money.

Replacing a Specific Part (Example: Roller)

Replacing a damaged roller is straightforward when you use a diagram as your guide. A diagram can illustrate the specific steps required for replacing a roller, guiding you through each stage.

Safety First: Disconnect the power supply to the garage door opener.
Preparation: Gather the necessary tools and the replacement roller. Review the diagram for precise steps.
Removal: Using the diagram as a guide, carefully remove the damaged roller. Refer to the diagram to understand the exact removal procedure.
Installation: Using the diagram, carefully align the new roller with the track. Follow the diagram’s instructions to ensure proper installation.
Testing: Reconnect the power supply to the garage door opener and test the operation of the door. Confirm the new roller is functioning correctly.

DIY Repair Guide

Embarking on a garage door repair adventure? Knowing when to tackle the task yourself can save you money and boost your DIY confidence. This guide provides a roadmap for successful repairs, equipping you with the knowledge and tools to tackle common issues. We’ll focus on when DIY is the right choice, illustrate a typical repair, and equip you with essential tools and safety precautions.

When DIY Repair is Appropriate

DIY repair is often a cost-effective and satisfying approach for certain garage door issues. It’s ideal when the problem is relatively straightforward, involves easily accessible components, and doesn’t require specialized tools or knowledge. Consider DIY if you’re comfortable working with basic mechanics and possess a willingness to learn. However, if the problem involves complex mechanisms, electrical systems, or potential safety hazards, it’s best to call a professional.

A Sample Repair: Spring Adjustment

Adjusting garage door springs, a common DIY task, can save you a considerable amount of money. Before starting, always consult your garage door’s manual for specific instructions, which are usually found in the area near the springs or in a user guide. Improper adjustments can lead to severe injuries, so safety is paramount. This example shows how to adjust the tension on torsion springs.

Safety First: Ensure the garage door is disengaged from its automatic opener system. Disconnect the power to the garage door opener. Use locking mechanisms and a sturdy work platform to prevent the door from falling.
Visual Inspection: Carefully inspect the springs for any visible damage, corrosion, or signs of breakage. Any signs of wear or damage require professional help.
Equipment: Use a spring tensioning tool, which is specially designed for the job. Ensure it fits the type of spring your garage door uses. Use a sturdy work surface. Also, consider using safety glasses and gloves to protect yourself from potential injury.
Adjustment: Using the spring tensioning tool, adjust the tension on the springs according to the instructions in your garage door manual. Follow the correct steps to avoid damaging the springs or other components.
Testing: Slowly lower and raise the garage door a few times to ensure the adjustment is correct and the door operates smoothly. Any issues require a professional’s attention.

Essential Tools for Garage Door Repairs

A well-equipped toolbox is crucial for tackling various garage door repairs.

Measuring Tools: Tape measure, level, and a set of wrenches.
Screwdrivers: Phillips and flathead screwdrivers of various sizes.
Wrench Set: Combination wrenches for nuts and bolts.
Spring Tensioning Tool: Essential for adjusting torsion springs.
Safety Equipment: Safety glasses, work gloves, and sturdy work boots.

Precautions When Working with Garage Door Parts

Working on garage doors presents specific safety concerns.

Power Disconnect: Always disconnect the power to the garage door opener before working on any part of the door system.
Spring Safety: Torsion springs store significant energy; handle them with extreme care. Never attempt to repair or replace them without proper training.
Professional Help: If you are uncertain about any part of the repair process, contact a qualified garage door technician.
Proper Lifting: Use the appropriate equipment for lifting heavy parts to prevent injury.
Environmental Factors: Be mindful of weather conditions and maintain a safe working area.

Types of Garage Door Openers and Parts

Garage door openers are the unsung heroes of our homes, silently whisking our cars in and out of our garages. But beyond their simple function, there’s a fascinating world of different technologies and components that make them work. Understanding these nuances is key to choosing the right opener for your needs and performing maintenance effectively.

Different Drive Mechanisms

Choosing the right garage door opener depends heavily on the drive mechanism. Each type has unique strengths and weaknesses. These factors play a crucial role in longevity, performance, and overall user experience.

Chain Drive Openers: These are the most common and often the most affordable option. Their simple design relies on a chain to transfer power from the motor to the opener’s drive gear. They typically provide a good balance of performance and cost-effectiveness, though their mechanical chain can make some noise.
Belt Drive Openers: A belt drive replaces the chain with a smooth belt, providing a quieter operation and often a more robust system. This eliminates the chain noise and reduces the potential for chain-related wear and tear. The smoother operation translates to a longer lifespan.
Screw Drive Openers: Screw drive openers utilize a helical screw to lift the garage door. This often results in a more reliable and consistent lifting action compared to other types, especially in extreme temperatures. They are usually quite robust and provide a smooth and reliable operation, but can be somewhat noisy.

Component Breakdown

The components within each type of opener vary. Understanding these components allows for more informed maintenance and repair decisions.

Chain Drive: Key components include the chain, sprockets, motor, limit switches, and safety reversing mechanisms. The chain is the crucial power-transferring element.
Belt Drive: The belt, motor, and drive sprockets are the primary components. Belt drive openers usually have fewer moving parts, leading to a quieter and potentially more durable operation.
Screw Drive: A screw drive’s core components are the screw, the motor, the drive gears, and limit switches. The screw, coupled with the drive gears, is the key element that lifts the door.

Strengths and Weaknesses Comparison

This table highlights the pros and cons of each type of garage door opener.

Drive Type	Strengths	Weaknesses
Chain Drive	Affordable, readily available, good performance	Can be noisy, chain can wear out, potentially less robust
Belt Drive	Quieter operation, longer lifespan, less maintenance	Can be slightly more expensive, sometimes less powerful than chain drives
Screw Drive	Reliable lifting action, often more durable, less likely to be affected by extreme temperatures	Can be noisy, potentially more expensive than chain drives

Example: Belt Drive Opener Diagram

This diagram illustrates the key components of a typical belt drive garage door opener.

A belt drive opener often boasts a smooth and silent operation. The belt is a key element, transferring power from the motor to the drive system, effectively lifting the garage door.

(Imagine a simple diagram here. A basic drawing of a garage door opener with labels for the motor, belt, drive sprockets, safety reversing mechanisms, and limit switches would suffice.)

Illustrative Examples of Diagrams

Unveiling the inner workings of your garage door is easier than you think! Diagrams are your secret weapon for understanding every intricate part, from the powerful springs to the precise movements of the opener. They provide a visual roadmap to help you troubleshoot issues and perform maintenance with confidence.A clear, well-labeled diagram can quickly turn a confusing jumble of metal and gears into a straightforward guide to understanding.

This section will illustrate a few examples to help you visualize the inner workings of your garage door.

Lifting Mechanism Section Diagram

This diagram illustrates the crucial components of a typical garage door lifting mechanism. Understanding this mechanism will allow you to identify problems and understand how the different parts work together.

The diagram above shows a simplified representation of a garage door lifting mechanism. The main components include the door itself (often made of steel or composite materials), rollers which run along the track, the spring system (often torsion or extension springs), and the operator motor (which might be attached to the door or in a separate unit). The operator motor (not shown) powers the mechanism, often through a chain or belt drive.

The spring system provides the stored energy needed to lift the door, and the rollers and track ensure smooth movement.

Torsion Spring Diagram

A torsion spring is a critical part of the garage door system, storing energy to lift the door. This diagram highlights its key components.

The diagram above shows a torsion spring system. Note the spring itself, which is wound tightly and stores the energy needed to lift the door. The mounting bracket secures the spring to the overhead support. The safety cables (often not visible) play a critical role in preventing accidents. The spring covers help protect you and ensure the spring doesn’t become exposed.

Garage Door Operator Components Diagram

A garage door operator controls the lifting and lowering of the door. This diagram shows the key parts.

The diagram above illustrates the major components of a typical garage door operator. The motor provides the power to lift and lower the door. The chain or belt drive transfers this power to the door itself. The control panel allows for remote operation, while the limit switches ensure the door doesn’t overextend its travel. The gearbox and drive assembly are critical parts of the operator, ensuring the motor’s power is effectively transferred.

Internal Garage Door Opener Components Diagram

This diagram showcases the internal workings of a garage door opener.

This diagram shows the internal components of a garage door opener. You’ll see the circuit board, which controls the functions of the opener. The motor is the heart of the system. The limit switches, crucial for safety, prevent the door from going too far. The gear train transfers the motor’s power to the door’s lifting mechanism.

Comprehensive Overview of Diagrams: Garage Door Part Diagram

Unlocking the secrets of your garage door system often starts with a good visual guide. Diagrams, like helpful blueprints, lay out the intricate connections between parts, allowing you to understand the inner workings and potentially troubleshoot issues yourself. They’re your trusty companions on the journey to garage door mastery.A well-crafted diagram isn’t just a collection of lines and boxes; it’s a roadmap to your garage door’s functionality.

It reveals the delicate dance of interconnected components, showing how the operator, the door, and even the safety sensors all work together seamlessly. This understanding is crucial for preventative maintenance and for tackling minor issues before they escalate into major problems.

Visual Representation of a Garage Door System

A comprehensive diagram displays the entire garage door system, including the door itself, the operator, and all the crucial components like springs, rollers, tracks, and hinges. Each part is clearly labelled, ensuring easy identification and understanding. The diagram highlights the placement of each element, illustrating how they interact and connect. This allows you to see how the door’s movement relies on the smooth operation of each part.

Imagine the intricate dance of gears and springs—a visual representation helps you visualize that dance.

Connections Between Components

The diagram showcases the precise connections between the various components. This illustrates how the operator’s movement translates into the door’s up-and-down motion. It details how the springs and cables are integral to maintaining the door’s weight and balance, ensuring smooth operation and safety. The lines and arrows in the diagram demonstrate the pathways of force and movement, making the system’s operation more transparent.

The operator isn’t just a button; it’s a complex mechanism with several moving parts.

Door and Operator Relationship

The diagram will visually depict the connection between the garage door and the operator. This includes the mounting points, the cables that transmit power, and the mechanisms that enable the door’s opening and closing. A key aspect to understand is how the operator’s motor controls the door’s movement. This illustrates the crucial link between the control and the action, showing how the operator initiates and governs the entire process.

This allows you to pinpoint potential problems if the door isn’t responding as expected.

Safety Sensor Function

This diagram will focus on the crucial role of safety sensors. It will illustrate how these sensors are strategically placed to detect obstacles in the door’s path. The diagram will explain how the sensors use beams of light or other technology to detect obstructions. The diagram will detail how the sensor’s functionality directly impacts the safety of the system.

The system shuts down immediately if an obstacle is detected. This is critical for protecting both people and property. Understanding the sensor’s position and function is essential for safe garage door operation.

Component	Function	Diagram Location
Door	Main part of the garage door system.	Top center of the diagram
Operator	The motor that powers the door.	Right side, near the door
Safety Sensors	Prevent accidents.	Near the bottom of the door