These are some solutions to the most common faults in UPS for most brands. Undoubtedly, we find most common problems in On Line UPS consumables. That is, those elements that wear out over time and must replace in certain periods of time. We offer best ups equipment at affordable price at APC UPS price in Lahore.
Faults In Online UPS
However, there are other factors. That also intervene in UPS failures. These are related to environmental conditions.
Battery Failures:
This is the main component of a UPS. And recommend battery replacement every three to five years depending on the brand of UPS.
Battery Temperature Failures:
According to the different manufacturers of battery brands. They recommend keeping the batteries in an environment with a temperature below 25 degrees Celsius.
Failures Due to Lack of Controlled Battery Discharge:
We recommend performing preventive maintenance on its UPS twice a year. In which discharge all battery units in a controlled manner. With specialized equipment. In this way we manage to extend the useful life of the batteries. Offering the end customer significant savings in batteries.
Failures Due to Ventilation or Uncontrolled Ambient Temperature:
It is very important to maintain controlled ambient temperature. To avoid overheating in the power electronic boards and batteries. In the UPS preventive maintenance. The ambient temperature and temperature of the power electronic components measures to guarantee optimal operation of the UPS.
Faults In UPS Capacitors (Capacitors):
These components intend to eliminate fluctuations in voltage. Condition the energy of the services and make the load safe. The most common is that a UPS has several capacitors. That work in series or in parallel, which reduces failures.
The expected life of a capacitor is between five to seven years. So, during that period, we recommend doing a constant visual inspection. And even a thermal scan to identify any problems. A proactive replacement at that time could also be a viable option.
UPS Fan Failures:
After a certain time of use. The fans will begin to fail. Since in most cases they remain in operation 24 hours a day. Fans for Online UPS or Double Conversion UPS are more robust. And have a much longer lifespan. And the failure of one of them can completely damage your entire UPS and ruin it.
Some UPSs have alarms or lights to indicate battery or temperature related faults. In case of not having these indicators. An increase in temperature near the UPS. Which we can verify with a thermostat. Or simply by instinct or some strange noise in particular. It will help identify an error related to over temperature.
Failures Due to Environmental Problems:
If the environment in which your UPS is located has extreme temperatures caused by a lot of dust. And the humidity in the environment. Like any IT equipment. The UPS needs proper ventilation. Timely preventive maintenance.
Controlled battery discharge. Review, and diagnostics of each of its electronic control and power stages. This extends the useful life of your UPS.
The UPS Has New Batteries and Does Not Backup With Batteries

In online UPS models it is necessary to verify that the UPS is NOT in Bypass mode. Which is an electrical self-protection mode. With which most UPS equipment design in order to avoid damage to the UPS. Generally, when initializing an UPS for the first time. It starts up in Bypass mode.
The (Self-protection mode) and delivers energy to its sockets or outlet strips. But if the electrical fluid fails. The UPS turns off the outlet. To get out of the problem. It is necessary to follow the power-up steps for each UPS model. Which we describe in each one of our user manuals. If you cannot solve the problem.
Interactive UPS Faults
Failure due to poor user connection. It is very frequent the complaint of some clients who say. “The UPS is new or I recently changed the battery. And it does not provide autonomy or does not provide battery support when the electricity goes out.
Solution:
Some models come with several black sockets identified as “Battery backup” and “source only protection”. The former are the only ones that deliver battery power. The latter behave as a power strip or multi-socket.
In the line of interactive UPS of other models. They generally come with one or two sockets of a different color. This indicates that they Are Not Protected. That is, if the normal power supply of your premises or company fails. Your computer equipment or whatever find protecting. They will turn off.
UPS Overload Failure
The UPS design to deliver a certain electrical power capacity, and the equipment that each client has in their company or business design with a need for electrical power to be able to operate normally.
In other words, if a computer has a source of 600 Watts of electrical consumption. We recommend it to protect the computer. UPS Communications does not recommend connecting laser printers to the UPS, since it can alarm or burn the UPS.
Active Circuit Breaker Fault:
Check the circuit breaker located on the UPS near the power cord. The circuit breaker label as “Press to reset. The circuit breaker will trip if there is a severe overload at the output of the UPS. (As Many equipment connected to the UPS).
Solution:
Reduce the load, press the reset button inside the equipment. If we activate the circuit breaker it will come out about 1/4″ from the UPS. Once pressed in, test the UPS outputs. If you still have faults, contact the service center.
Low Battery Fault.
UPS Equipments can only supply battery power for a limited time. Before the unit shuts down to protect itself from deep discharge. In some cases, depending on the size of the load and the size of the product’s batteries. Try to determine if the UPS was on battery shortly. Before the connected equipment shut down.
UPS Battery Charging Problems
Keep in mind that while normal power may appear to exist. These unforeseen power problems. Such as voltage waveform distortion, harmonic distortion, and frequency variations. It will make the UPS go on battery. You may have found that your UPS has been charging the battery.
So, what may be happening is that the battery is recharging often enough. That the unit hasn’t had enough time to recharge. Eventually, then, the UPS will shut down. And (will not support connected equipment).
Solution:
When your Interactive UPS Equipment turn off due to low battery discharge. You must wait a certain time before turning it on again. Since some brands will not turn on if the battery discharges.
In some products such as the APC UPS. We can configure it to work gracefully and remotely shutting down protected equipment. When the power returns it will return power to its outlets. And if the computer configured correctly it should reboot.
My computer does not accept a modified sine wave
APC Backups products. When the unit is on battery. While this type of waveform is ideal for computers. And computer related equipment. It may not be compatible for other types of loads such as small motor loads.
If you are using non-computer loads with one of the UPSs listed above. Check the manufacturer’s specifications to determine. If the equipment can operate on a “stepped wave”. If it cannot then you will require a UPS those outputs a pure sine wave when working on battery. In this case it is necessary to install an Online UPS.
Your computer power supply is faulty and unable to sense the UPS transfer time
Depending on the UPS model. It can vary between 2 milliseconds and 8 milliseconds. Modern computers and computer-related power supplies. It can “go through” power outages in 10 to 20 milliseconds. Many, in fact, can last up to 50 milliseconds without your computer shutting down. If the computer is restarting when transfer the Backups product to battery operation. This may be the problem.
Try to recreate the problem by plugging in another device. Unplug the UPS (put it on battery). To see if the new device works properly. When the UPS goes on battery. If it does, then there is most likely a problem with the computer’s power supply.
If The UPS may be faulty
For advanced troubleshooting assistance, please see our support page. To leave an email explaining your problem. Write down the exact make, model, and serial number of the unit. Which can find on a white label located on the bottom.
Should consult the equipment manufacturer for further assistance in this situation.
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