Generator Repair FAQs

How often should a standby generator be serviced?

As a general rule, standby diesel generators should be serviced every 6 months or after 100-200 hours of running time, whichever comes first, more often if the unit runs frequently during load-shedding. A proper service includes an oil and filter change, coolant check, battery and starter test, and a load test to confirm the generator can carry your building’s load when you need it.

What are the warning signs that my generator needs repair?

Watch for slow or failed starts, unusual smoke colour, oil or fuel leaks, unusual vibration or noise, frequent tripping under load, and warning lights on the control panel. If your generator fails to start automatically during a power outage, that’s an urgent sign it needs attention before the next outage.

Do you offer emergency generator repairs in Cape Town?

Yes. We provide emergency generator repair and callout services across Cape Town, Milnerton, and the greater Western Cape, so you’re not left without backup power for longer than necessary.

Which generator brands do you service?

We work on diesel generators from all major brands, including Cummins, Perkins, Cat (Caterpillar), Deutz, and Onan, among others.

What areas do you service?

We’re based in Milnerton and service generators throughout Cape Town and the wider Western Cape.

What does a preventive maintenance plan include?

Our preventive maintenance covers routine inspection of the engine, cooling, fuel, and electrical systems, oil and filter changes, battery testing, and a load test to confirm the generator will perform correctly when the power goes out, helping you avoid costly breakdowns and unplanned downtime.

How do I book a service or get a quote?

Call us on 082 447 0171 or 082 929 8333, or email admin@generatorresq.co.za, and we’ll arrange a technician to assess your generator.