The Common Power Supply Problems You May Encounter

The Common Power Supply Problems You May Encounter

Power supply problems are an unfortunate reality that we all have to deal with at some point. Whether it’s a faulty power outlet or a malfunctioning power supply unit (PSU), power supply problems can be frustrating and even dangerous if not handled properly. However, ACS Industrial offers power supply repair services and a free repair guide. Let’s take a look at some of the most common power supply problems you may encounter and how to address them.

1. Overheating

One of the most common power supply problems is overheating. PSUs can get hot, especially if they’re under a heavy load, and if they get too hot, they can shut down or even fail completely. Overheating can be caused by a variety of factors, including poor ventilation, dust buildup, or a faulty fan. To prevent overheating, ensure your PSU is well-ventilated and clean, and consider adding cooling fans if necessary.

2. Power Surges

Power surges occur when the voltage in your home or office suddenly spikes, and this can damage your electronics, including your PSU. The surges cause equipment to suffer premature failure. However, power surges may not be noticeable until failure though the heat can be a sign. Power surges can be caused by lightning strikes, power outages, or faulty wiring, among other things. To protect your PSU from power surges, consider investing in a surge protector or an uninterruptible power supply (UPS).

3. Underpowered PSU

An underpowered PSU won’t be able to provide enough power to your system, which can lead to various problems, including crashes, freezes, and even hardware damage. To prevent this, make sure to check the power requirements of your system before purchasing a PSU. If you’re upgrading an older system, consider upgrading your PSU to ensure it can handle the increased power requirements. 

4. Loose Connections

Loose connections are another common power supply problem that can occur due to faulty cables or loose connections between devices. Loose connections can lead to power loss, device malfunction, and even electrical shocks. To avoid loose connections, always ensure that your cables are plugged in securely and regularly inspect your cables for wear and tear.

5. Reversed Polarity

Reversed polarity occurs when the positive and negative inputs or outputs of a power supply are improperly connected. Certain components, such as electrolytic capacitors, are intolerant of this and can fail as a result. If the output connections of the power supply are reversed, the load may be damaged, potentially causing power supply failure and worst-case scenarios like damaged circuits or electrical fires.

To safeguard against reversed polarity in low-power applications, a diode can be utilized. The diode may be placed in series or anti-parallel with the input or output. When placed in series, the circuit will remain open, and the diode will not conduct if the voltage is reversed. However, the diode will dissipate power proportional to the input current. Conversely, when placed anti-parallel to the input, the diode will usually be inactive and only conduct when the polarity is reversed. In such a case, the diode will short and activate an overcurrent protection device, like a fuse or the power supplies’ OCP.

Contact ACS Industrial Services for Your Power Supply Repair Services

Understanding some of the most common power supply problems and how to address them can keep your electronics and appliances safe and functional. If you’re experiencing power supply problems and you’re not sure how to address them, don’t hesitate to contact a professional for assistance.

At ACS Industrial Electronic Repairs, we thrive at solving the toughest electronic repair challenges. We have experienced, trained service technicians who will evaluate your power supply problem and solve it in no time. When you choose us, you can expect real people, honest work, and accurate results. We showcase the dirty, gritty work + magic that gets electronics back up and running. Moreover, we provide a two-year warranty after the repair. We don’t just assign a job number and leave it at that – we understand the importance of personalized attention to each client. Reach us at or (800) 605-6419. You can also visit our website and fill out our contact us form for inquiries