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Repairs & breakdowns

Inverter Generator Repairs Near Me

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A suitcase inverter generator on a workbench with its side cover off showing the inverter module
RP-04
Rated output
1 to 7 kVA
Fuel
Petrol, LPG or dual fuel
Output
Single phase 230 V pure sine wave
Service
Oil every 50 to 100 run hours
Turnaround
2 to 5 working days

Inverter generator repairs near me need a technician who knows both small engines and electronics. An inverter generator makes raw AC, rectifies it to DC and then electronically builds a clean 230 V sine wave, which is why it is quiet, frugal and safe for laptops, TVs and gate motors. When it fails, the cause can be the engine or the electronics. Send one free request and we pass it to independent repairers near you who quote directly. GeneratorRepair.co.za itself does not repair or sell generators.

Inverter generator no power output

The most common complaint is an engine that runs but gives no power. A technician will check, in order:

  • The overload light and reset, and the AC and DC breakers
  • Whether the load is too much: a 2 kVA inverter gives about 1.6 kW, and fridges and pumps surge on start-up
  • The stator windings, measured with a meter
  • The inverter module, the circuit board that builds the sine wave and the most expensive part

Eco throttle, surging and starting faults

Eco throttle lets the engine idle down at light load and speed up when a load is switched on. If the generator hunts up and down, or will not pick up a load, the cause is usually a partly blocked carburettor from stale petrol, a sticking stepper motor on the throttle, or a faulty module. Many inverter generators will not start at all if oil is low, and the small carburettors gum up even faster than those on open-frame units, so most petrol generator repair advice applies here too.

Parallel kits, batteries and running safely

Two units linked with a parallel kit can trip if one has a weak module, so bring both for testing. Electric start models also have a small battery that dies when left uncharged. Run inverter generators outdoors only, as they still make carbon monoxide. Keep them dry, as wet electronics corrode fast in coastal salt air. If you want to compare models, see inverter generators and silent generators.

Repair costs and turnaround

Diagnosis is typically R350 to R650. A carburettor clean costs R500 to R1,000. An inverter module replacement costs roughly R2,500 to R7,000 depending on size, which on a budget 1 kVA unit can be close to its replacement price. Expect two to five working days, longer if a module has to be ordered.

What to include in your request

  • Give the kVA and whether it is a parallel pair
  • Say whether the overload light comes on
  • Describe what you were running when it failed
  • Mention if it surges or only fails under load
  • Add a photo of the rating plate and the panel

Inverter Generator Repairs for different sites

  • Homes: a quiet suitcase unit for TVs, Wi-Fi and lights that runs but gives no power
  • Estates and complexes: a quiet inverter set allowed under estate noise rules that keeps surging on eco throttle
  • Farms and smallholdings: a portable inverter for a farmhouse or camp that trips when the fridge starts
  • Shops, offices and restaurants: a small inverter backup for a shop's tills and router with a failed module
  • Factories, mines and sites: inverter units on site for sensitive tools and laptops that won't take a load
  • Lodges, venues and events: quiet inverter generators for events, food trucks and camps needing a quick repair
  • Clinics, schools and towers: a clinic or church inverter unit that will not start after months in storage

Frequently asked questions

What is an inverter generator and how does it work?
An inverter generator uses a small engine to drive a multi-pole alternator that produces high-frequency AC. Electronics convert it to DC and then into a clean 50 Hz, 230 V sine wave, while the engine speed varies with the load. That makes it quieter and more fuel-efficient than a conventional generator.
Will GeneratorRepair.co.za collect and repair my inverter generator?
No, we do not collect, repair or charge for anything. The site passes your details to independent repair workshops nearby, some of which offer collection. They quote and you choose, with no obligation.
Is an inverter generator worth repairing?
For engine faults and mid-size units, nearly always. If a cheap unit needs a new inverter module, ask for the part price first and compare it with a new generator. Engine faults on the same unit are usually far cheaper than electronics.
Can I connect an inverter generator to my house wiring?
Only through a proper changeover switch fitted by a registered electrician, who issues a Certificate of Compliance. Never back-feed through a plug.

Inverter Generator Repairs by province and city

More generator services

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Installation & switchingGenerator installation, automatic transfer switches and changeover switches

Buy & hireNew, diesel, inverter, silent, three phase and used generators, and generator hire

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