Common Commercial Electrical Issues and How to Fix Them

Electricity is the backbone of modern commercial building construction. Commercial facilities depend heavily on reliable electrical construction, from lighting and HVAC systems to computers and machinery. However, electrical issues can arise anytime, potentially causing downtime, safety hazards, and costly repairs. Identifying common electrical problems early and addressing them promptly can save businesses time and money while ensuring a safe, efficient working environment.

In this blog, we explore some of the most common electrical issues in commercial settings and provide practical tips on fixing or mitigating them.

Resolve These Common Commercial Electrical Issues Seamlessly

Whether you’re a business owner, facility manager, or maintenance professional, this guide helps you navigate the following electrical issues and take proactive steps to ensure your business operates smoothly:

Frequent Circuit Breaker Trips

One of the most common electrical issues in commercial buildings is circuit breaker trips. A circuit breaker is designed to protect the electrical circuit from overloading by automatically cutting off power when there is a fault.

The Problem

Frequent tripping can disrupt business operations, create safety concerns, and signal underlying issues such as:

Overloaded Circuits: This occurs when too many devices or appliances are plugged into the same circuit, demanding more power than the circuit can handle.
Short Circuits: A short circuit happens when a live wire comes into contact with a neutral or ground wire, creating a low-resistance path that causes an excessive current to flow.
Faulty Breakers: Sometimes, the circuit breaker itself may be malfunctioning, causing it to trip even when there is no actual fault in the circuit.

How to Fix It

Avoid Overloading: Ensure that equipment is distributed across different circuits. Avoid plugging too many high-demand devices into the same outlet or circuit.
Upgrade the Circuit: If the circuit continues to trip due to increased power demand, you may need to have a licensed electrician upgrade the circuit to a higher amperage to handle the load.
Check for Faults: If overloading isn’t the issue, have a licensed electrician inspect the system for short circuits or faulty breakers. An electrician will test each circuit to find the cause and replace any defective breakers.

Flickering or Dimming Lights

Flickering or dimming lights in a commercial setting can be annoying and concerning.

The Problem

While it may seem like a minor issue, persistent flickering or dimming can point to more serious problems, including:

Loose Connections: Loose or corroded connections in the lighting fixture or wiring can lead to voltage fluctuations, causing lights to flicker.
Overloaded Circuit: An overloaded circuit can cause voltage drops, which in turn lead to flickering lights.
Faulty Ballast: In fluorescent lighting systems, a malfunctioning ballast can cause lights to flicker or dim.
Electrical Imbalance: If your electrical system isn’t properly balanced, especially in larger buildings with multiple circuits, flickering may occur.

How to Fix It

Tighten Connections: Inspect the fixture wiring for any loose or corroded connections. If necessary, tighten the connections or replace the wiring.
Replace the Ballast: In fluorescent lighting systems, replacing the faulty ballast can resolve flickering or dimming issues.
Check the Circuit Load: If the circuit is overloaded, consider redistributing the electrical load or installing a new circuit to handle additional devices.
Consult an Electrician: If the problem persists, an electrician may need to check for wiring issues, electrical imbalances, or problems with the main electrical panel.

Power Surges and Spikes

Power surges and voltage spikes can occur unexpectedly, often due to external factors like lightning strikes, equipment failures, or issues with the power grid.

The Problem

These surges can damage sensitive electronic equipment, disrupt operations, and pose a safety risk. Common causes of power surges include:

Electrical Storms: Lightning strikes can cause significant voltage spikes in the electrical grid, leading to surges that affect commercial buildings.
Faulty Wiring: Old or improperly installed wiring can create unstable voltage, increasing the likelihood of power surges.
Large Equipment Turn-on: Turning on large electrical equipment, such as HVAC systems or industrial machinery, can momentarily cause a voltage dip or surge.

How to Fix It

Install Surge Protectors: Use surge protectors on sensitive equipment such as computers, servers, and electronics. For larger-scale protection, consider installing a whole-building surge protector at the main electrical panel.
Upgrade Wiring: If you suspect that outdated or faulty wiring is contributing to power surges, an electrician can inspect and upgrade the wiring as needed.
Ensure Proper Grounding: A well-grounded electrical system helps protect against surges. If your grounding system is inadequate, consider having it updated by a professional.

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Non-Functioning Outlets or Switches

Outlets or switches that stop working are a common issue in commercial buildings. This can be frustrating for employees and can impact the functionality of equipment.

The Problem

Causes for non-functioning outlets and switches include:

Tripped GFCI: Ground Fault Circuit Interrupter (GFCI) outlets are designed to protect people from electrical shocks. These can trip if they detect an imbalance, cutting off power to the outlet.
Loose Wiring: Loose or disconnected wires behind outlets or switches can lead to loss of power.
Faulty Outlet or Switch: Over time, outlets and switches can wear out, especially in high-use areas like kitchens, bathrooms, and workspaces.

How to Fix It

Reset GFCI Outlets: If the problem is a tripped GFCI outlet, simply press the reset button on the outlet to restore power. If the outlet repeatedly trips, it could be a sign of a wiring issue or ground fault, in which case, call an electrician.
Inspect Wiring: If outlets or switches aren’t working, turn off the power at the breaker box and inspect the wiring. Tighten loose connections or replace any frayed or damaged wires.
Replace Faulty Outlets or Switches: If the outlet or switch is old or faulty, it may need to be replaced. Always hire a licensed electrician to replace outlets and switches to ensure safe installation.

Overheating Electrical Equipment

Overheating electrical equipment is a significant issue that can cause system failures and even fires. Commercial facilities use a wide range of electrical equipment, including HVAC systems, computers, and machinery, all of which generate heat.

The Problem

Some potential causes for overheating include:

Overloaded Circuits: Too many devices drawing power from the same circuit can lead to excessive heat generation.
Poor Ventilation: Equipment that isn’t properly ventilated can overheat due to restricted airflow, especially in equipment closets or server rooms.
Faulty Wiring or Connections: Poorly installed or damaged wiring can lead to excessive resistance, which generates heat and can potentially cause a fire hazard.

How to Fix It

Check for Overloads: Ensure that electrical circuits aren’t overloaded. Redistribute devices across different circuits or install new circuits to handle additional load.
Provide Adequate Ventilation: Ensure that electrical equipment, especially servers and machinery, has adequate ventilation to prevent overheating. Consider using cooling fans, air conditioning units, or heat sinks if necessary.
Replace Faulty Wiring: If overheating is caused by faulty wiring or connections, have an electrician inspect and replace the damaged wiring.

Burning Smell or Discoloration Around Outlets

A burning smell or discoloration around outlets, switches, or electrical panels is a serious issue that should never be ignored.

The Problem

A burning smell or discoloration around outlets is often a sign of overheating, electrical arcing, or faulty wiring. Ignoring the problem can result in electrical fires, equipment damage, and safety hazards.

How to Fix It

Turn Off the Power: If you notice a burning smell or discoloration, immediately turn off the power at the circuit breaker. Turning off the power will help prevent further damage and reduce the risk of fire.
Inspect for Damage: Check the affected outlet or switch for visible signs of damage or burning. If you find any, don’t attempt to fix it yourself. Call a licensed commercial electrical contractor immediately.
Replace Damaged Components: A professional will need to replace any burnt outlets, switches, or wiring and identify the underlying cause of the issue, such as a short circuit or overloaded wiring.

Unusual Noises from Electrical Systems

Humming, buzzing, or crackling noises coming from electrical equipment, outlets, or circuit panels can indicate problems with the electrical system.

The Problem

These noises are often caused by:

Loose Connections: Loose or corroded electrical connections can create arcing, which causes electrical components to make buzzing or crackling noises.
Overloaded Circuits: Circuits that are overloaded with too many devices or equipment can create electrical strain, resulting in humming sounds.
Faulty Equipment: Sometimes, malfunctioning equipment such as transformers, motors, or appliances can create noise.

How to Fix It

Turn Off Power: If you hear unusual noises, turn off the power to the affected circuit to prevent further damage.
Inspect for Loose Connections: Have an electrician inspect the wiring and connections for signs of loose or damaged connections.
Replace Faulty Equipment: If the noise is coming from faulty equipment, such as a motor or transformer, it may need to be repaired or replaced.

Enhance Your Electrical Systems with Expert Services From Ring and Ping

As an experienced commercial electrical contractor, Ring and Ping proudly serve a wide range of industries, including warehousing, manufacturing, and data and call centers. When it comes to indoor lighting installation, we’re experts at ensuring your space is properly wired for success. In addition to our fiber optic services, many clients choose us for cubicle and workstation setup and installation, seamlessly integrating their network and electrical systems. We take pride in being your one-stop shop for all your commercial power needs. Contact us today to solve your most frustrating electrical issues.

Common Commercial Electrical Issues and How to Fix Them

Resolve These Common Commercial Electrical Issues Seamlessly

Frequent Circuit Breaker Trips

The Problem

How to Fix It

Flickering or Dimming Lights

The Problem

How to Fix It

Power Surges and Spikes

The Problem

How to Fix It

Non-Functioning Outlets or Switches

The Problem

How to Fix It

Overheating Electrical Equipment

The Problem

How to Fix It

Burning Smell or Discoloration Around Outlets

The Problem

How to Fix It

Unusual Noises from Electrical Systems

The Problem

How to Fix It

Enhance Your Electrical Systems with Expert Services From Ring and Ping

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