No start
Stale fuel, no spark, or a low-oil switch.
Onsite generator repairs, servicing & maintenance across Gauteng
Gentech
Gentech petrol generators used as portable sets and residential backup are repaired and serviced on site. Fuel, batteries and output are diagnosed separately.

Gentech petrol generators turn up as portable frames and as smaller residential backup sets. ProService Generator Repairs services them independently. There is no manufacturer-approval claim attached to the brand.
The useful split on these sets is between a machine that will not fire and a machine that fires and then cannot hold voltage. Carburettor and fuel work solves the first. AVR and output work solves the second.
Electric-start Gentech sets add a battery that may have sat flat since the previous outage. That is checked before the carburettor is blamed.
Gentech repairs begin with the start method and the fuel. A pull that feels empty, a starter that clicks, or an engine that coughs on choke are written down before tools go into the carburettor.
Output repairs wait until the engine holds speed. A set that is still surging will show unstable voltage even if the regulator is fine.
A Gentech service covers oil, the air filter, the plug and a note on how old the petrol is. Home backup sets are run long enough to see whether they settle. Portable sets are checked for a recoil that is starting to drag.
Maintenance visits are the right time to drain fuel that has been standing, rather than waiting for the next no-start.
Gentech petrol complaints usually fall into starting, fuel and output. These are the ones checked first.
Stale fuel, no spark, or a low-oil switch.
Flat battery, dirty terminals or a starter that clicks and does not turn.
The engine needs choke to stay alive, or it dies as soon as a load is added.
AVR, speed or wiring once the engine itself is steady.
Restricted air, tired oil, or a load past what the set is carrying comfortably.
Gentech no-start diagnosis covers petrol quality, the carburettor, the plug, ignition, and any low-oil cutoff. Recoil and electric start are not mixed up. If the rope turns the engine and there is still no fire, the starter is no longer the suspect.
Gentech fuel faults often start with petrol left in the bowl. Jets block, the choke is left in the wrong position, and the set hunts. Lines and the filter, where one is fitted, are checked so a restriction upstream is not missed.
A clean is not automatic. If the carburettor is damaged, replacement is discussed. Not every unit is repairable.
Electric-start Gentech sets need a battery that actually holds voltage. Terminals, the charge path and the starter cable are inspected. A recoil-only set skips that circuit and goes straight to the rope and pawls.
Gentech output faults include no voltage, low voltage and voltage that moves when a kettle or a small tool is connected. The AVR is tested with the engine at a steady speed. Breakers are checked first so a tripped protector is not replaced with a regulator.
Frames moved to the job or the outage.
House sets left in place between uses.
Each start method is diagnosed on its own.
Cooling airflow is part of an overheating check.
Gentech backup sets benefit from a scheduled run and an oil check before the wet season or a run of outages. Fuel left from the last event is the item most likely to cause the next failure.
Both uses are diagnosed. The install is not assumed.
Electric start is tested, not skipped.
AVR work follows a stable run.
Major area pages are linked below.
01
Call, WhatsApp or send a quote request for a visit in Gauteng.
02
Send the suburb, make, model, kVA, fuel type, the fault or alarm, and the controller model if you can see it. Photos of the set and the data plate can go on WhatsApp.
03
A time is agreed from the diary. A same-day slot is offered only when one is open, and it is confirmed on the call.
04
The technician inspects the generator on site and identifies the likely fault or the service that is due.
05
The findings and the proposed repair or service are explained before parts are changed.
06
Repairs or servicing then follow the scope you approve.
Gentech petrol repairs are arranged across the main Gauteng service areas.
Google Review
My Gentech was leaking oil heavily, but [ProService Generator Repairs] replaced the seals and did a full preventative maintenance check to ensure it was ready for the winter outages.
Google Review
Very knowledgeable about Gentech engines.
Yes. Portable and residential Gentech petrol generators are repaired and serviced independently.
Yes. That symptom usually points at fuel mixture or a blocked carburettor circuit, which is confirmed on inspection.
Yes. Battery voltage, terminals and the starter circuit are part of an electric-start diagnosis.
It can. Speed, wiring and the AVR are checked once the engine is running steadily.
Yes. Oil, filters, the plug and a controlled run are included, with fuel condition noted.
Portable and home backup sets, including carburettor, recoil and voltage faults.
Portable and backup sets, with recoil, electric start and voltage faults.
Home and workshop petrol sets, with carburettor and no-power faults.
Portable sets for home and workshop use, with fuel and start faults.
Contact ProService Generator Repairs for Gentech petrol generator repairs, servicing and fault diagnosis.