What Causes Uninterruptible Power Supply Failures?

Uninterruptible Power Supply (UPS) failures can be caused by various factors. According to a source, the following are the most common reasons for UPS failure:

Battery failure: Batteries are the most common cause of UPS failure. Lead-acid batteries last between 3-5 years, while lithium-ion batteries last between 4-10 years. It is recommended to check batteries twice a year and replace them when they become bad or unusable.

Capacitor issues: Capacitors should be checked annually and replaced every 5 years.

Fan breakdowns: Cooling fans should be checked annually and replaced about every 10 years or when needed.

Ageing power supplies: Power supplies can fail due to ageing, which can cause power outages when needed.

Connection failure: Connection failure can occur due to loose connections or damaged cables.

In addition to these, other factors such as humidity and overheating can also cause UPS failure. If you are experiencing issues with your UPS, it is recommended to get professional help to diagnose and fix the problem.

Power Quality Professionals can address all these issues with a good Preventive Maintenance Inspection (PMI). We are available for you.