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Should You Service Your Power Factor Correction Equipment?

Service Your Power Factor Correction Equipment

At Johnson & Phillips, we are one of the leading UK companies that maintains power factor correction equipment. The benefits of PFC are fairly well known in the industry, with huge financial savings, carbon emission reduction, and more capacity being the main benefits.

The Need for Regular Maintenance

While the advantages of PFC are evident, it’s crucial to recognize that PFC equipment requires consistent maintenance. Although such equipment may function seamlessly for years, the potential for capacitor failures, blown fuses, or more severe malfunctions cannot be disregarded. Across numerous businesses nationwide, we’ve observed instances where neglecting PFC equipment maintenance has led to costly repercussions.

Our motto is “It’s better to have planned downtime than unplanned”, which is very true regarding the power factor correction equipment you have installed.

What Happens If It Completely Fails?

1. Increased Reactive Power Charges

Without functioning PFC equipment, your facility may experience higher reactive power charges from the utility provider. Reactive power charges are often levied based on power consumption inefficiency, meaning that your utility bills could surge significantly without proper correction.

2. Reduced Power Quality

Failure of PFC equipment can lead to decreased power quality, characterized by voltage sags, harmonics, and fluctuations in current. Poor power quality can disrupt operations, damage sensitive equipment, and compromise the reliability of electrical systems.

3. Energy Inefficiency

Inefficient power factor due to PFC equipment failure results in wastage of electrical energy. This inefficiency increases utility costs and contributes to unnecessary carbon emissions, undermining sustainability initiatives and environmental compliance efforts.

4. Equipment Overloading & Damage

Inadequate power factor correction can strain other electrical components, such as transformers, generators, and motors, leading to overheating, increased wear and tear, and premature equipment failure. Over time, this can necessitate costly repairs or replacements, further escalating operational expenses.

5. Risk of Fire & Safety Hazards

Faulty PFC equipment poses a fire hazard, particularly if capacitors degrade or short-circuit. Electrical fires can result in property damage and production downtime and pose significant risks to personnel safety. Mitigating these risks requires prompt detection and remediation of equipment failures.

Power Factor Correction Equipment Servicing

PFC Maintenance Protocol

Johnson & Phillips advocates for annual servicing or inspection of your PFC equipment. Neglecting this essential upkeep can gradually diminish the savings from reactive power charges and even strain other components.

Worn capacitors can also lead to detuning of the PFC equipment, altering tuning frequencies and causing cascading power quality issues. This underscores the critical importance of regular maintenance to prevent a chain reaction of problems.

Our dedicated on-site PFC team conducts thorough equipment testing to optimize power efficiency. In the event of any detected issues, our team promptly replaces failed equipment on-site.

Leveraging our expertise as manufacturers of PFC capacitors, we maintain ample stock for immediate replacements, mitigating the risk of future complications and eliminating costly callouts.


Annual servicing of your PFC equipment safeguards your investment and operational continuity. As capacitors degrade over time, internal deterioration poses fire hazards and compromises performance. By prioritizing annual servicing, you ensure continued savings on reactive power and uphold operational integrity.

For further insights into our power factor correction maintenance, servicing, and bespoke solutions, kindly reach out to us or call 0800 86 000 86. At Johnson & Phillips, we’re committed to optimizing your power efficiency and operational resilience.