.2607230503464.jpg)
Industrial equipment rarely fails without warning. A breaker that trips once, a conveyor that hesitates during startup, or a motor that suddenly runs hotter than usual can seem like routine maintenance issues. In reality, these small electrical problems often signal a deeper issue that can lead to costly downtime if left unresolved.
Across manufacturing plants, warehouses, food processing facilities, and distribution centers, electrical systems power nearly every critical operation. Waiting until equipment stops working completely usually means dealing with emergency repairs, production delays, and higher costs than if the problem had been addressed earlier.
At Southwest Industrial Electric, we've spent more than 40 years working exclusively in commercial and industrial environments throughout Southern California and the Southwest. That experience has shown us that recognizing the right time to involve a licensed industrial electrician can make the difference between a planned repair and an unexpected shutdown.
Why Small Electrical Problems Can Become Big Operational Issues
Industrial electrical systems are interconnected. A problem affecting one piece of equipment can quickly impact an entire production line.
For example, a failing motor, loose electrical connection, or deteriorating variable frequency drive (VFD) may initially cause only occasional interruptions. As the condition worsens, it can increase heat, place additional stress on connected equipment, and eventually trigger breaker trips or equipment failures elsewhere in the system.
Unlike mechanical wear that's often visible, electrical problems frequently develop behind closed panels or inside equipment where they're harder to detect. By the time operators notice performance issues, the underlying problem may have existed for weeks.
According to the National Fire Protection Association (NFPA), electrical equipment should be inspected and maintained regularly because loose connections, overheating, and deteriorating components are among the leading causes of electrical failures in commercial and industrial facilities.
Warning Signs You Shouldn't Ignore
Some issues deserve more attention than simply resetting equipment and returning it to service.
Repeated Breaker Trips
Circuit breakers are designed to protect equipment from unsafe conditions. If the same breaker trips repeatedly under normal operating conditions, it's usually pointing to an underlying problem rather than a faulty breaker alone.
Possible causes include:
- Overloaded circuits
- Ground faults
- Short circuits
- Failing equipment
- Damaged wiring
Repeatedly resetting the breaker without determining the cause increases the risk of equipment damage.
Burning Odors or Excess Heat
Electrical equipment should never produce a burning smell.
Heat around:
- Electrical panels
- Disconnects
- Motor control centers (MCCs)
- Junction boxes
- Switchgear
may indicate loose connections, overloaded conductors, or insulation breakdown.
These conditions should be evaluated promptly before they develop into arc faults or equipment failures.
Motors Running Hotter Than Normal
Industrial motors naturally generate heat, but excessive temperatures often indicate electrical problems rather than mechanical ones.
Possible causes include:
- Voltage imbalance
- Overcurrent
- Failing windings
- VFD issues
- Poor power quality
Continuing to operate an overheating motor can significantly shorten its service life.
Recurring VFD Fault Codes
Variable frequency drives are designed to detect abnormal operating conditions.
If the same fault code continues appearing after restarting equipment, it's usually a symptom—not the root problem.
Common recurring faults include:
- Overcurrent
- Undervoltage
- Overvoltage
- Ground faults
- Motor overloads
Professional diagnostics help determine whether the issue originates with the drive, motor, incoming power, or connected equipment.
Problems That Often Go Undiagnosed
Not every electrical issue causes an immediate shutdown. Some develop gradually, making them easy to dismiss during busy production schedules.
Lights Flicker When Equipment Starts
If lighting dims every time large motors or compressors start, your electrical distribution system may be experiencing excessive voltage drop.
Besides affecting lighting, voltage fluctuations can interfere with:
- PLCs
- Automation systems
- Sensitive electronics
- Process controls
Identifying the source often requires electrical testing rather than visual inspection.
Unexpected Increases in Energy Consumption
If utility costs continue rising while production remains relatively stable, inefficient electrical equipment could be contributing.
Common contributors include:
- Aging motors
- Poor power factor
- Failing capacitors
- Electrical losses
- Equipment drawing more current than designed
The U.S. Department of Energy estimates that electric motor systems account for roughly 70% of industrial electricity use in manufacturing facilities, making motor performance a significant factor in overall energy consumption.
Intermittent Automation Problems
Machines that occasionally stop, reset, or generate inconsistent alarms are often assumed to have software issues.
In many cases, the cause is electrical.
Loose terminations, fluctuating voltage, deteriorating power supplies, or electrical noise can all affect automated equipment without creating obvious electrical symptoms.
Because these problems occur intermittently, they usually require specialized diagnostic equipment and experience with industrial control systems to isolate.
Why Professional Diagnostics Matter
Industrial electrical systems operate at voltages and power levels that require specialized knowledge, testing equipment, and safety procedures.
Rather than replacing parts based on assumptions, licensed industrial electricians perform systematic troubleshooting to identify the root cause before recommending repairs.
This may include:
- Load testing
- Thermal imaging
- Power quality analysis
- Voltage measurements
- Insulation resistance testing
- Equipment performance evaluation
Finding the actual source of the problem prevents unnecessary component replacements and reduces the likelihood of repeat failures.
In many cases, professional diagnostics also reveal developing issues that haven't yet caused noticeable production problems, allowing repairs to be scheduled during planned maintenance windows instead of emergency shutdowns.
When to Call Immediately vs. When to Schedule an Assessment
Knowing when to involve a licensed industrial electrician can help you avoid unnecessary downtime while addressing problems before they become emergencies.
Call Immediately If You Notice:
- Burning smells coming from electrical equipment
- Smoke, sparks, or visible arcing
- Breakers that trip immediately after being reset
- Panels, disconnects, or switchgear that feel unusually hot
- Visible damage to wiring or electrical components
These situations present both operational and safety concerns. Shut down the affected equipment using your facility's lockout/tagout procedures and have the system professionally evaluated before restoring power.
Schedule an Assessment Soon If You Notice:
- Equipment that runs hotter than normal
- Recurring VFD fault codes
- Frequent lighting flicker during equipment startup
- Motors that repeatedly overload
- Rising electrical costs without increased production
- Automation systems that intermittently lose communication or reset
These issues often develop gradually, giving facilities an opportunity to schedule repairs before they interrupt production.
Preventive Maintenance Helps Catch Problems Earlier
Many industrial electrical failures can be prevented through routine inspections instead of emergency repairs.
A preventive maintenance program typically includes:
- Electrical equipment inspections
- Torque checks on electrical connections
- Infrared thermal imaging
- Power quality testing
- Panel and switchgear evaluations
- Motor and control system inspections
Infrared inspections are particularly valuable because they allow technicians to identify loose connections, overloaded conductors, and failing components before visible damage occurs.
For facilities operating year-round, preventive maintenance also helps minimize unexpected downtime while supporting safer working conditions.
Don't Wait Until Production Stops
When electrical problems appear repeatedly, they're rarely resolved by themselves. Small issues often become larger, more expensive repairs when left unaddressed.
Whether you're dealing with recurring breaker trips, inconsistent automation, overheating motors, or unexplained equipment behavior, early diagnosis is almost always less disruptive than responding after a complete failure.
If your facility is showing signs of electrical trouble, the team at Southwest Industrial Electric can help identify the root cause and recommend practical repair options for your operation.
Call (323) 215-1273 or contact our team today to schedule an evaluation.