One. What are the possible causes of a strange noise in the automatic door?
1. If the automatic door's leaf opens and makes a very loud noise while in operation, first check if the hinges or other hardware components of the automatic door are malfunctioning. Inspect for any loose connections and, if found, promptly reinforce them. This is a relatively straightforward process.
2. Inspect the door sensor's wheel. If the wheel of the automatic door is damaged or loose, it can also cause a very loud noise. If this is the case, it needs to be addressed immediately by either reinforcing the wheel or replacing it with a new one.
3. Inspect the hinges' sliding mechanism for any abnormalities. Hinges for automatic sliding doors often experience wear and tear over time. If the wear is minor, cleaning the hinges and track with a cleaning solution and removing any dust from the track can be sufficient. Additionally, a small amount of lubricant can be applied to the hinges' bearings. However, avoid applying lubricant directly to the surfaces of the hinges and tracks, as this can attract dust and potentially cause further damage.
II. Solutions for Automatic Door Noises
1、Troubleshooting for Abnormal Noises in Automatic Doors: Abnormal noises in automatic doors typically manifest in two ways: either a scraping sound or a sudden explosive sound. For these two types of noises, it is important to differentiate and diagnose. Scraping sounds are usually caused by mechanical failures.
2、The most common cause of sudden explosion noises is in the electrical components. Automatic door electrical systems typically do not include transformers, and the most common failure is in the controller's rectifier and filter capacitors. The solution is to open the controller cover, first check if the fuse is blown, and then inspect the electrolytic capacitors for any leakage of electrolyte. Replace the blown capacitor with a new one, and before replacing, check the silicon rectifier block for any issues. If there are any issues, replace it as well.
3. If any of the above issues occur, such as the absence of friction or explosion sounds, and the door remains unresponsive, this is considered a mysterious malfunction. First, check if the power supply is properly connected and if the automatic door switch is engaged. Also, check for potential damage to the transformer due to a sudden voltage increase. If none of these issues are present, then the controller should be checked for faults, following the same troubleshooting steps. If the controller is functioning correctly, then the motor is the most likely cause. If the motor is damaged, it will need to be replaced.
4. After checking and troubleshooting the above issues, if the problem persists, it is likely due to a fault in the controller's single-chip microcomputer program. In this case, it is necessary to contact the automatic door manufacturer or a qualified technician for repair.