24/7 Emergency Call Line

    Call Us: 866-255-6030

    Caps & Fan Replacements

    Caps and Fan Replacements

    Visual Signs of Capacitor Failures

    Cap deformation caused by heat or fluid leakage, and thermal imaging on the connection points to the capacitors.  Any scorching is a good indication of future failure.

    Burnt or blackened valve protrusions are a clear sign of stress on the capacitor. This can lead to a protrusion break and quick failure. This is typically caused by a short circuit in the capacitor which generates pressure build up.

    Oil leakage that will increase impedance and temperature in the capacitor and can lead to capacitor degradation and failure.

    Signs of Fan Failure

    Although many issues can occur and cause capacitor failure, a UPS fan failure is typically caused by use over time and the bearings fail. Occasionally you can hear a fan motor start to wear out but not always. This is why a proper preventative maintenance scope is imperative. Without an experienced Field Engineer, detecting a fan failure proactively can be difficult to catch in time. Fans will run until they can’t anymore, so a UPS maintenance contract is the key to proper fan replacements.


    Our access to electronic parts stocking facilities nationally allows us to quickly deliver Caps & Fans onsite, anytime needed. We can overnight products and have our technicians there quickly to avoid any risk of downtime. We understand that most Cap & Fan replacements are done overnight or on the weekends and our FEs are on standby, willing to help.

    Book An Appointment

    Our experts recommend replacing AC and DC UPS capacitors & fans every 7-10 years.

    What We Provide

    Local Experienced Technicians

    Not all technicians are created equal. Some technicians may have the intellect but lack the practical hands-on experience to PM your equipment. We believe in hiring dedicated technicians that average 20+ years of experience.

    National Coverage

    FGC provides UPS service in all 50 states and

    some areas of Canada. Whether it is a PM

    contract or Emergency service, FGC has you covered.

    Fully Stocked

    Batteries & Parts

    As your service provider we cannot properly do our jobs without access to batteries and parts. We stock several million in parts, batteries, and replacement equipment nationally. OEM certified or vintage third party, FGC has the parts to ensure this highest UPS uptime.

    Seeing these warning signs?

    Book an appointment with us today to ensure that your mission critical UPS experiences 100% uptime.

    Our Step-by-Step Process

    for UPS Fan & Capacitor Service Areas

    What Our Clients Have to Say

    Our Partner Brands


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    We have emergency service available 24/7/365 nationally. Call our U.S. based NOC at 866-432-1711. Let us be your partner for uninterruptible power supply services.

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