Retail set not auto-starting
An alarm or a missing start signal holds the set off. We read the controller and fix the cause.
Open 24/7 · We arrive within 1 hour across Gauteng · Established 2000
Cresta
Generator repairs, servicing and maintenance in Cresta, from shops and offices around Beyers Naudé Drive and Weltevreden Road to the townhouses and family homes behind them. We trace controller, voltage and battery faults on site.
Callout fee waived when you accept our written quote. 1-year workmanship guarantee. See prices

Yes, we repair generators in Cresta, from shop, restaurant and office sets around Beyers Naudé Drive to the townhouse and home sets behind them, on site. We are open 24/7 and arrive within 1 hour for breakdowns; we read the fault first and quote it in writing before any work.
Cresta is one of Randburg’s busiest retail and office nodes, centred on Beyers Naudé Drive and Weltevreden Road, with Northcliff, Linden, Robindale and Blackheath around it. Shops, restaurants and small offices here run sets that must hold voltage once fridges, tills and air-conditioning start, while the townhouses and homes nearby fail after weeks of waiting.
A controller alarm on a retail set gets a different test from a house battery. We read the panel, check the start signal and test the transfer, and on business sets we confirm the auto-start is armed before we leave. Servicing still covers oil, filters, coolant and the charger.
Many Cresta shop sets are three-phase, so we measure each phase under load. A set can look healthy on one phase while another drops out.
Breakdowns attended 24/7. We diagnose first, then quote the repair in writing.
Planned services and maintenance plans for standby sets in Cresta, booked for a time that suits you.
Customised maintenance contracts and SLAs, quoted in writing after we assess the generator and how it is used.
Retail and office sets first, with house and townhouse sets on the same streets.
Alarms and transfer faults that stop a shop or office switching to generator power.
Voltage that sags or wanders once fridges, tills and air-conditioning start.
Oil, filters, coolant and a check that auto-start is armed, done before trading hours.
Planned visits for retail sets, with plan clients booked ahead of new callouts.
Start, fuel and output faults on shop, office and house sets.
A rated-load test when a shop set must prove it can carry the store.
Quote request · Cresta
Send your details and we will come back to you with a quote for the work in Cresta. For a breakdown, call or WhatsApp: we are open 24/7 and arrive within 1 hour.
What happens next
Charlie, lead technician: Degree in Mechanical Engineering, Degree in Electrical Engineering, Diesel Plant Fitter. Generator specialists since 2000.
Cresta faults split between retail sets that must carry a busy load and house sets that simply need to start.
An alarm or a missing start signal holds the set off. We read the controller and fix the cause.
Compressors starting together expose a weak AVR, so we measure output while they run.
One phase dropping while the others look fine points to wiring, a breaker or uneven load.
A townhouse set that clicks usually has a tired battery or a dead charger.
The engine runs but the changeover never moves. We trace the ATS and its control wiring.
Sets that run for hours overheat when airflow, coolant or belts are neglected.
Restaurants around Cresta switch on fridges, cold rooms and extraction fans the moment the set takes over. If the generator falls over at that point, the starting load is usually what exposes the fault, not the engine on its own. We measure voltage and frequency while those loads come on, then repair the AVR or the fuel side that the readings point to.
A Cresta shop set that will not start is usually held off by an alarm or a flat battery after weeks of standby. We read the panel first, then the battery, then the fuel if the engine turns. Call or WhatsApp us with the shop name and what the panel shows.
Fridges, tills and air-conditioning starting together can drag the voltage down. Steady engine speed points to the AVR or alternator, while a falling engine note points to fuel, the governor or overload.
After any repair we check that the controller is back in automatic mode and run a simulated outage, so the set takes over on its own next time.
Shop sets can be serviced before trading starts, but planned servicing has its own page. Maintenance plans and scheduled visits for Cresta shops, offices and homes are on the Randburg servicing and maintenance page.
We service retail, office and residential sets across Cresta, many of them three-phase. Share the kVA from the data plate when you book.
ProService Generator Repairs services and repairs these brands on Cresta retail, office and home sets.
Retail sets are serviced around trading hours and tested with fridges and tills connected.
Office sets get controller, transfer and voltage checks under the working load.
House sets behind the retail node get battery, charger and start tests with every service.
We test with compressors, tills and lights running, where faults actually show.
We measure every phase, not just one.
We leave the set armed and tested for the next outage.
You approve the price before we start, and the diagnosis is included when you go ahead.
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Call, WhatsApp or use the form with your suburb in Cresta and what the generator is doing.
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Your description and photos tell us which checks to plan and which parts to bring.
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We are open 24/7. For breakdowns we arrive within 1 hour; services are booked for a time that suits you.
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The callout is R400 – R700 in business hours and R700 – R1,400 after hours. The callout fee is only payable if you do not accept the quotation. If you accept the quotation, the callout fee is waived.
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The fault is tested on site and quoted in writing.
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Only the work you accept goes ahead, with a 1-year workmanship guarantee.
Yes. We repair and service shop, office and home generators on site across Cresta.
Yes. Tell us your opening time when you call and we plan the repair so the set is back in automatic before customers arrive.
Usually a wiring fault, a breaker or a load spread unevenly across the phases. We measure each phase under load and find the cause.
Yes. We read the alarm, fix the cause and test a simulated outage before we leave.
Yes. All three border Cresta and are part of our Randburg coverage.
We are open 24/7 and arrive within 1 hour for breakdowns, even mid-trading.
Contact ProService Generator Repairs for onsite fault diagnosis and generator repairs in Cresta and surrounding suburbs. Planned work is on our servicing & maintenance page.