Generator Problems & Professional Solutions

Serving businesses nationwide, GCM provides expert solutions for all generator problems, from diagnostics to long-term maintenance. Whether you're dealing with generator issues or need preventative care, our team is committed to keeping your power systems running smoothly, wherever you are in the UK.

For businesses that rely on power continuity, generator problems aren’t just inconvenient they’re operational threats. Downtime can mean lost revenue, damaged equipment and health and safety risks. Whether you’re using a diesel generator for prime or standby power, unexpected generator issues demand fast, professional solutions to protect your operations.

At GCM, we deal with complex commercial and industrial generator problems every day. We specialise in identifying the underlying causes, applying the correct procedures, and delivering long-term generator solutions to keep your systems reliable.

When the power fails, we won't.

Early Signs of Generator Issues

Generator Control and Maintenance Ltd

Generators often show warning signs before they fail completely. Recognising and responding to these early indicators is key to avoiding full system outages. You might encounter:

  • Delayed or failed start-up

  • Irregular running or surging

  • Alarms or fault codes displayed on the control panel

  • Visible leaks (oil, coolant, or fuel)

  • Black, white, or blue exhaust smoke

  • Unusual vibration or knocking sounds

  • Inconsistent power output under load

Each of these symptoms points to potential generator issues that could impact engine performance, electrical output, or fuel efficiency. If your site experiences any of these, a professional generator inspection is essential.

Why Generator Repairs Should Be Left to Professionals

Generator Control and Maintenance Ltd

When generator problems occur, attempting a quick repair in-house is a serious risk. These systems operate under high temperature, voltage and pressure without proper tools and knowledge, you could cause further damage, void your warranty, or create dangerous conditions.

Key risks of unauthorised intervention include:

  • Electrical shock or arc flash from live components
  • Fire or explosion due to fuel leaks or overheating
  • Permanent damage to control systems or sensors
  • Breaching compliance regulations for critical infrastructure
  • Extended downtime if incorrect repairs are attempted

Generator problems require trained engineers and commercial-grade diagnostic tools. We strongly advise against trying to resolve issues on-site without proper qualifications.

Generator Problems We Handle

How We Deliver Generator Solutions

Generator Control and Maintenance Ltd

At GCM, we approach generator issues systematically, using manufacturer-approved procedures and diagnostic tools. Our process ensures both rapid resolution and full compliance with safety standards.

Our Generator Response Process:

  • Initial Site Evaluation & Safety Isolation
    We secure the area, isolate hazards, and assess the generator’s condition before any diagnostic work begins.
  • Fault Code Analysis & System Diagnostics
    Our engineers connect to the generator’s control unit to review fault logs, check sensor data, and identify system-wide faults.
  • Mechanical Component Inspection
    We examine fans, belts, radiators, hoses, oil levels, and cooling systems—common culprits in overheating and shutdown generator problems.
  • Fuel System Examination
    Generator issues often stem from contaminated diesel or blocked filters. We assess tanks, lines, and injectors for debris, water ingress, or airlocks.
  • Electrical System Testing
    This includes load testing, alternator output, battery performance, ATS (Automatic Transfer Switch) function, and verification of wiring integrity.
  • Performance and Load Simulation
    Where necessary, we apply a controlled test load to monitor rel time perfomrance and identify under load faults that don’t appear during idle testing.

Supporting Commercial and Industrial Clients

Generator Control and Maintenance Ltd

Our generator services are designed for businesses that depend on continuous or backup power. We support clients across different fields.

We understand that generator issues in these environments demand urgency, technical precision and full documentation. Our engineers are fully trained and qualified to deliver compliant, site-ready solutions to all major generator systems.

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Flexible and dependable generators for contractors, offering a range of portable and stationary units to power job sites, tools, and equipment across various construction and service sectors.
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Generators For Utilities
Generators designed to support utility operations, from backup power for substations to long-term solutions for remote locations, ensuring the stability and continuity of essential services.
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The Cost of Ignoring Generator Issues

Generator Control and Maintenance Ltd

Generator problems don’t go away on their own. Delayed action often results in:

  • Emergency breakdowns at peak usage

  • Expensive replacement parts or entire generator units

  • Downtime during business-critical periods

  • Non-compliance with safety or insurance requirements

  • Increased fuel consumption and operating costs

With professional generator solutions, we help you minimise risk, extend equipment lifespan, and ensure reliable power delivery across all scenarios.

Nationwide Coverage Across the UK

Generator Control and Maintenance Ltd

Find & Click Where You're Located

North East England

Yorkshire And The Humber

North West England

West Midlands

  • Herefordshire
  • Shropshire
  • Staffordshire
  • Warwickshire
  • Worcestershire

East Midlands

Greater London

At GCM, we understand that generator problems can occur anywhere, and fast response times are essential to minimise downtime. That’s why we proudly offer our expert generator solutions throughout the entire UK.

No matter where you’re located our experienced engineers are always ready to provide professional support. From routine maintenance and diagnostics to emergency repairs, we’re committed to delivering reliable, efficient service across all regions.

With a strong presence in major cities and rural areas alike, our team ensures that your business’s power needs are met with minimal disruption, no matter the location.

When the power fails, we won't.

Book a Professional Assessment

If you’re facing generator problems or suspect performance issues, we’re here to help. Generator Control & Maintenance LTD offers rapid-response diagnostics, detailed reporting and complete generator solutions backed by experienced engineers.

Get in touch today to request a professional assessment or emergency attendance. Don’t wait for the system to fail get ahead of your generator issues with GCM.

When the power fails, we won't!