Do you hear a repetitive clicking sound from the UPS connected to an electronic device? This sound can raise the question, is this normal or a sign of a problem? Many UPS users are worried about the functionality of their devices.
UPS (Uninterruptible Power Supply) protects electronic devices from electrical disturbances, such as sudden blackouts or voltage surges. However, a strange clicking sound could be a sign of a problem with the power, load, or components inside.
Bardimin will provide a complete guide to understanding the cause of the clicking sound from UPS and steps to address it safely. By knowing the cause, you can prevent further damage to your UPS and connected devices and learn how to maintain it to keep it functioning optimally.
Since UPS is directly related to high voltages, it is important to handle the problem carefully. Otherwise, it may cause power interruption, risk of short circuit, or fire. Make sure you follow the steps in this article to maintain the safety and optimal performance of your UPS.
Is the “Click” Sound on UPS Dangerous?
A “click” sound on a UPS is a sound that comes from the inside of a device, such as a relay or switch, as the UPS moves between the main power source and the battery. This sound can be heard periodically or continuously, depending on the UPS condition.
Technically, this sound occurs due to mechanical movement inside the UPS. When the main power supply is interrupted, or the voltage is unstable, the UPS will automatically switch to battery mode. This process involves electronic components such as relays that open and close circuits, resulting in a distinctive “click” sound.
However, not all “click” sounds have the same meaning. Sometimes, this sound is normal and is part of the UPS function. However, if this sound appears too often or is accompanied by other issues, such as a UPS that is completely shut down or unable to store power, this could be an indication of a serious problem that needs to be checked immediately.
Causes of Your UPS Making a Click Sound
A clicking sound on the UPS often indicates a problem. While sometimes this sound is normal, such as when the UPS switches modes, it often signals a problem that needs to be fixed immediately. Quickly knowing the cause of the clicking sound can prevent further damage and maintain the performance of your UPS.
Clicking sounds are usually not common, especially if they occur continuously or are accompanied by other symptoms, such as a UPS that is completely shut down or unable to store power. It is important to find out the cause immediately before the problem gets worse.
Common Causes of Click Sound on UPS:
1. Switching of Operating Modes
The UPS is designed to switch between the main power source and the battery in the event of a fault. This process involves internal components such as relays that open and close circuits, resulting in a clicking sound.
When the power goes out, the UPS will automatically switch to battery power, which may produce a clicking sound.
2. Relay Displacement
The relay is an important component in a UPS that serves to divert power from the main power source to the battery. The mechanical movement of the relay is what often causes a clicking sound.
Relays are used to enable or disable certain features, such as mode switching or overload protection.
3. Overload
Overload occurs when too many devices are connected to the UPS, exceeding its capacity. The UPS will attempt to protect itself by disconnecting the circuit, which may result in a clicking sound as a warning.
If you connect too many devices to the UPS, this can cause overload and trigger a clicking sound.
4. Low or Damaged Battery
A battery that is not working properly can interfere with the performance of the UPS. When the UPS tries to charge a damaged battery, a repetitive “click” sound may appear.
An aging battery may not be able to store energy properly, so the UPS is constantly trying to charge and make a clicking sound.
5. Other Internal Issues
Some of the problems in the UPS that can cause clicking sounds include:
- Damage to components such as capacitors, transformers, or circuit boards.
- Loose cables or poor connections inside the UPS.
- Dust or debris build-up inside the UPS.
Other Interesting Articles
Simple Diagnostic Flowchart
Here’s a simple flowchart to help you identify the cause of the clicking sound on the UPS:
Does a clicking sound occur when the power goes out?
├── Yes: This is most likely due to a change in operating mode or relay switching.
└── No:
├── Does the UPS indicate an overload?
│ ├── Yes: Reduce the load on the UPS.
│ └── No:
│ ├── Has the UPS battery not been replaced for a long time?
│ │ ├── Yes: Replace the UPS battery.
│ │ └── No: Inspect the internal components or take it to a qualified technician.
└── Check the cables and internal connections of the UPS.