Set the visit before the next outage test
Use this service page when your generator needs a scheduled inspection, a fault check, or contract maintenance on site. Our support team sets up the visit around your operating hours, access rules, and any site induction requirements so the work can move ahead with as little interruption as possible.
We service standby and prime generators for business premises, factories, warehouses, offices, retail sites and production plants. In areas with load-shedding, dusty yards, coastal humidity, or long idle periods, a planned visit helps catch wear early before it turns into downtime.
What the service visit usually includes
Every site is different, but a planned visit often covers the main items that keep a generator ready for use. Where required, we check service intervals, test the starting system, and inspect for leaks, loose connections, blocked filters, or signs of overheating.
- Oil and filter changes at the correct service interval
- Coolant condition, hoses and visible leaks
- Battery testing, terminals and charging health
- Load bank testing for controlled performance checks
- Changeover switch checks by qualified electrical personnel under local regulations
- Fuel system repairs, starter system repairs, and fault finding when needed
How to arrange the booking without delays
To set up the visit, send the site location, generator size if known, and a short note on what has been happening. If the set is not starting, tripping, overheating, or showing a warning light, that detail helps us prepare the right technician and parts. A few minutes of accurate information often saves a return trip.
- Site address and the contact person for the day
- Generator make, model, kVA rating if available
- Service history or last recorded maintenance date
- Any current faults, alarms or unusual noises
- Access times, security steps and parking limits
Why preventive servicing pays off on busy sites
Many generators do not fail without warning. They usually show signs first, such as low battery capacity, dirty filters, coolant loss, oil changes that are overdue, or a changeover switch that needs attention. Regular servicing helps reduce nuisance trips and keeps the set ready for the day it is needed most.
For sites that rely on generator power during municipal interruptions, preventive inspections are especially useful. They also help with service record audits, which is important when a site manager needs to show when work was done and what was checked.
What our team looks at on arrival
Our Midrand team works through a practical site routine that suits the machine and the conditions around it. We pay close attention to starting reliability, fuel condition, battery health, cooling, and evidence of wear that could lead to stoppages later.
- Visual inspection and safety checks
- Service fluid levels and filter condition
- Starter, battery and charging system performance
- Control panel indications and fault codes
- Changeover switch operation and wiring condition where permitted
- Load test or load bank test where scheduled
If parts need replacing, we explain what is urgent and what can wait for the next visit. That keeps the work practical and helps site managers plan around production, not around guesswork.
Midrand support for sites across South Africa
RelGen is based in Midrand, Gauteng and supports maintenance contracts for businesses in Johannesburg, Pretoria, Durban, Cape Town, Polokwane, Centurion and Sandton. We work with facilities teams, operations managers and site supervisors who need dependable generator servicing at more than one location.
Our team includes Thabo Engelbrecht, Naledi Shezi, Johan Matlala, Ayanda Khoza, Muneerah Daniels, Sibusiso Wessels and Rikus Botha. That mix of operations, technical support, field coordination and logistics helps us keep bookings organised and service records in order.
After the visit, what you can expect
Once the service is complete, we leave a clear record of the work done and any items that still need attention. If we find a developing fault, we will note it so your maintenance plan can be adjusted before the next scheduled visit.
For businesses that run on tight production windows, the best time to book is before problems show up. A planned service is less disruptive than an emergency callout, and it gives your generator a fair chance of starting when the site needs it most.





