During use, an automatic door makes a loud noise when the motor is operating, which can be caused by various factors such as obstructions in the door’s path, problems with the guide rail, or wear and tear of the drive system. If the issue is not inspected and addressed promptly, an automatic door making a loud noise may affect smooth operation and cause further wear to the components. In the following article, SONHA AUTO SERVICES will help you understand the causes of an automatic door making a loud noise, along with some appropriate inspection and troubleshooting methods.
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Why does an automatic door make a loud noise?
There are many reasons why an automatic door may make noise during opening and closing. Some of the most common causes are related to the door leaf’s travel path, the guide rail, and the motor and drive system.
The door is jammed or obstructed
When an obstruction appears along the door leaf’s travel path, the motor has to generate greater force to move the door. This may cause the automatic door motor to make noise and the door to operate more heavily and slowly than usual. Obstructions may include objects, dirt, or foreign matter located along the door’s travel path.
Solution: Check the entire opening and closing path of the door and remove any obstructions if present. Then operate the door to check whether the noise has decreased. If the door still makes a loud noise, the mechanical components and drive system should be inspected further.
The guide rail is misaligned, dirty or worn
The guide rail helps the door leaf move along the correct path. When the rail is misaligned, heavily contaminated with dirt, or worn, the door leaf may not move smoothly, causing the automatic door to make noise during opening and closing. An unstable guide rail can also cause the door leaf to vibrate or move out of alignment.
Solution: Check the condition of the guide rail and clean it if dirt or foreign matter is present. If the rail is misaligned or damaged, it should be adjusted or replaced to ensure stable door operation.
The drive system is damaged or worn
The drive system is the component that transmits power from the motor to the door leaf. When components within the drive system become worn or damaged, the door may no longer operate smoothly and may make a loud noise while the motor is running.
Some identifiable signs include:
- The motor produces more noise than usual.
- The door moves slowly or unevenly.
- The door vibrates during opening and closing.
- The noise occurs continuously during every operating cycle.
Solution: The drive system and related components should be inspected to accurately identify the source of the noise. If a component is severely damaged or worn, it should be repaired or replaced as appropriate.
How to fix an automatic door that makes a loud noise
Depending on the cause, the following measures can be applied to reduce the noise from an automatic door and restore the system to stable operating condition.
Check for and remove obstructions
This is the first step that should be taken when an automatic door makes unusual noises. Observe the entire travel path of the door leaf, especially the guide rail area and the point where the door leaf comes into contact with the floor. If an obstruction is found, remove it before continuing operation.
Do not use excessive force to pull or push the door leaf when the system shows signs of being jammed, as this may increase the load on the motor and drive system.
Inspect and adjust the guide rail
If the guide rail is misaligned or deteriorated, the door leaf may encounter greater resistance during movement. This can also be a reason why an automatic door makes a loud noise even though the motor is still operating normally.
The technician should inspect the condition of the rail, including the level of dirt accumulation and wear. If the rail is damaged or no longer meets operating requirements, it should be adjusted or replaced.
Inspect the drive system and motor
If the noise clearly originates from the motor area, the automatic door motor, drive system, and related components should be inspected. A worn drive system can cause the motor to operate under a higher load and produce abnormal noise.
Users should not disassemble the motor or adjust internal components themselves without the necessary technical expertise. In cases where an automatic door makes a loud noise continuously, it is recommended to contact a repair service provider for an accurate inspection of the cause.
Clean and maintain mechanical components
Dirt accumulated during use can increase friction between moving components, causing the automatic door to make noise or operate less smoothly. Regular cleaning and automatic door maintenance help minimize dirt accumulation, detect worn components at an early stage, and maintain stable operation.
For oil or lubricants, the correct type and application point must be used according to the technical requirements of each system. Do not apply oil to the motor or components that are not designed to be lubricated.
Replace worn or damaged components
If the cause of the automatic door noise is a worn component, replacement is necessary to restore stable system operation. Components that may need to be inspected include the drive system, guide rail, and other related automatic door components.
Replacement components must be compatible with the model and configuration of the door system to ensure operation according to the manufacturer’s design specifications.
When should you call an automatic door repair technician?
Not every case of an automatic door making noise requires motor replacement. However, if the obstruction has been removed but the door still makes noise, the system should be thoroughly inspected to determine the cause.
You should contact an automatic door repair service provider if the door shows one or more of the following signs:
- The noise is becoming increasingly louder.
- The motor produces abnormal sounds.
- The door moves slowly or jerks during operation.
- The door leaf does not complete its full travel path.
- The door becomes misaligned during opening and closing.
- The motor or drive system shows signs of abnormal operation.
Early inspection helps accurately identify the cause of an automatic door making a loud noise, limit the spread of damage to other components, and avoid unnecessary component replacement.
>>> See more: Top 10 common automatic door problems and effective solutions
Sonha Auto – Automatic door motor repair service provider
With more than 20 years of experience in the automatic door industry, SONHA AUTO SERVICES provides inspection, repair, maintenance, and component replacement services for automatic door systems.
During use, automatic door motors, drive systems, and automatic door accessories may experience wear due to operating frequency, environmental conditions, and length of use. Regular inspection and maintenance help maintain the technical performance and stable operation of the door system.
Warranty policy:
- 12 – 36 months warranty for newly installed motor products.
- 6 month warranty for motor repair and component replacement services.
Upon receiving a service request, the SONHA AUTO SERVICES technical team will inspect the actual condition of the door system, identify the cause of the noise, and recommend an appropriate automatic door repair solution.
If your automatic door makes an unusual loud noise, contact SONHA AUTO SERVICES for consultation and inspection support.
