Wilson panel alarm, engine idles fine
A controller or ATS fault, separate from the engine.
FG Wilson diesel
FG Wilson Diesel Generator Repairs & Servicing
- Brand
- FG Wilson
- Fuel
- Diesel
- Service
- Repairs, servicing and fault finding
- Quote
- Free and in writing, before any work
- Hours
- Open 24/7
- Response
- On site within 1 hour
We repair and service FG Wilson diesel generators, including older sets badged simply Wilson, across Gauteng. Many FG Wilson canopies carry a Perkins engine, so we follow the engine plate for fuel work and the Wilson controller for panel and transfer faults.
Independent service and repair: FG Wilson is a trademark of its owner, and ProService Generator Repairs is not a FG Wilson dealer or agent.
Callout fee waived when you accept our written quote. 1-year workmanship guarantee. See prices
FG Wilson Diesel Generator Repairs
Wilson and FG Wilson are the same make, and we repair both. Most of these sets are Perkins-powered, so the engine plate tells us which filters and fuel parts to bring, while the PowerWizard, DSE or other panel tells us how the set has been shutting down.
We price engine, controller and alternator work as separate lines, so you can see where your money goes.
FG Wilson Diesel Generator Servicing
We service an FG Wilson canopy set as a complete unit: engine items to the engine plate schedule, plus the controller alarms and the battery charger output on the Wilson panel.
Where an ATS is fitted, we test the transfer. A monthly no-load run tells you the engine starts; it does not prove the set will carry your building in an outage.
FG Wilson Diesel Generator Sizes We Service
We take on FG Wilson and Wilson standby sets from smaller commercial units to larger industrial installations where access allows. The plates give us the kVA and the engine make.
Why an FG Wilson diesel generator will not start
When an FG Wilson set will not crank, we check the standby battery, Wilson panel inhibits and any remote emergency-stop circuit before we replace a starter.
When it cranks without firing, we trace the fuel path on the engine fitted: filter, air, solenoid and lift pump. The canopy badge does not tell us the fuel hardware, so the engine plate does.
Fuel delivery, injectors and pumps
Fuel work on an FG Wilson follows the engine inside, which is often a Perkins. We confirm the filter and lift pump on the block before ordering parts.
Smoke under load can come from fuel delivery, injection condition or poor canopy airflow. Blocked louvres stop an enclosed Wilson canopy breathing, so we check those too.
Controllers, ATS, cooling and output
We read PowerWizard, DSE and other FG Wilson controllers as displayed, and photograph the alarm history before we move a cable.
If your FG Wilson runs but the building does not transfer, we test the ATS and the Wilson panel’s start output rather than the engine’s fuel solenoid.
For overheating, we check coolant, the radiator face and louvre clearance. Restricted airflow is a frequent cause on sets in dusty plant areas.
Once the engine holds speed, we test output at the breaker and AVR. FG Wilson sets carry Leroy-Somer and other alternators, and the nameplate decides the electrical parts.
What We Check During an FG Wilson Generator Repair
We check the FG Wilson canopy, engine and controller as linked but separate assemblies.
- Battery and starter circuit
- Controller alarms and controller state
- Emergency stop and protective shutdowns
- Oil and coolant condition
- Fuel filters and fuel delivery
- Fuel solenoid where fitted
- Lift pump where fitted
- Injectors where symptoms indicate
- Cooling pack and airflow
- Engine speed and frequency
- AVR where fitted
- Alternator and socket or breaker output
FG Wilson Generator Repair or Service?
Book a repair when the set fails during an outage, trips on load, shows a Wilson panel shutdown or loses output while the engine runs.
Book a service when engine and canopy maintenance is due and the set still exercises on its routine test.
FG Wilson Generator Problems Under Load
An FG Wilson can idle evenly and then hunt when the building load comes on. We compare fuel delivery, the controller’s load limits and alternator capacity under load.
Is an FG Wilson Generator Worth Repairing?
A battery, fuel or cooling repair on an FG Wilson with a sound Perkins engine is usually worth doing. Replacing the complete canopy makes more sense on a high-hour set with several major faults.
On older standby sets, a new Wilson controller and alternator can cost more than the engine repair. We set out the options once we have inspected all three.
What Affects FG Wilson Generator Repair Cost?
Your cost depends on the engine inside the canopy, the type of panel fault and the alternator’s condition. A control panel repair or reprogramming typically runs R3,500 to R14,000, while a basic service costs R900 to R1,800.
Common FG Wilson Diesel Generator Faults
The FG Wilson faults we see most often, and where we start.
Cranks, no fire
The fuel path on the engine inside the canopy, often a Perkins.
Runs, no transfer
The Wilson start output or the ATS, while the diesel is healthy.
Overheat in the canopy
Coolant, the radiator or blocked louvre airflow.
Low voltage under load
The AVR or alternator, once the engine holds speed.
Why Choose ProService for FG Wilson Generator Repairs?
Wilson and FG Wilson
Older Wilson-badged sets and newer FG Wilson sets get the same thorough diagnosis.
Engine make identified
We identify Perkins and other engines from the plate inside the canopy.
Canopy airflow included
We check louvres and the radiator on enclosed sets, not just the engine.
FG Wilson service and repair
ProService Generator Repairs services and repairs FG Wilson generators, with the fault diagnosed and a written quote given before any work.
Frequently Asked Questions About FG Wilson Diesel Generators
Do you repair FG Wilson diesel generators?
Yes. ProService services and repairs FG Wilson generators, including sets badged Wilson, across Gauteng.
Do you service and repair FG Wilson generators?
Yes. We service and repair FG Wilson generators on site and give you a written quote before any work.
Is Wilson the same as FG Wilson?
Yes. We book and repair sets badged Wilson or FG Wilson in the same way.
Why won’t my FG Wilson generator start?
Usually the battery, a Wilson panel inhibit or an engine fuel fault. Whether the set cranks tells us which.
Many FG Wilson sets are Perkins. Does that matter?
Yes. We follow the engine plate for engine work and the canopy controller for panel work.
Can you diagnose FG Wilson controller faults?
Yes. We read PowerWizard and other Wilson panels as displayed and photograph the alarms.
Do you repair FG Wilson ATS problems?
Yes. When the engine runs but the building does not transfer, we trace the Wilson panel output and the ATS.
Related Diesel Generator Brands
Perkins
Perkins-powered sets: filters, lift pumps, injectors and no-start diagnosis.
Olympian
Olympian standby and commercial canopy sets, old and new.
Cummins
Standby and commercial Cummins diesel sets: no-starts, fuel delivery, cooling and output faults.
Kohler
Kohler diesel standby sets: starting, fuel, transfer and output faults.
FG Wilson Diesel Generator Repairs Across Gauteng
We repair FG Wilson canopy sets at homes, complexes and businesses across Gauteng. We are open 24/7, and for a FG Wilson breakdown we arrive within 1 hour.
- FG Wilson generator repairs in Johannesburg
- FG Wilson generator repairs in Pretoria
- FG Wilson generator repairs in Sandton
- FG Wilson generator repairs in Centurion
- FG Wilson generator repairs in Midrand
- FG Wilson generator repairs on the East Rand
- FG Wilson generator repairs on the West Rand
- FG Wilson generator repairs in Randburg
- FG Wilson generator repairs in Roodepoort
Need FG Wilson Diesel Generator Repairs?
Check whether the engine plate inside the canopy says Perkins or another make, then call or WhatsApp 082 057 4605.