Diesel Generator Service Perth
Generator Repairs and Maintenance
Specialist electrical and control-system repairs, preventative maintenance and upgrades for diesel generators, standby power systems and parallel generation plants across Perth and Western Australia.

Specialist capability
Repairs and maintenance focused on the systems that start, protect and control your generator
Ultima Control supports standby, prime-power and parallel diesel generator systems. Our work is centred on electrical fault finding, controllers, protection, wiring, switchgear interfaces, synchronising, load sharing, communications and SCADA.
We help facilities, industrial sites, mining operations, utilities, OEMs and service providers resolve faults, modernise ageing controls and establish practical preventative maintenance programs.
Generator services
How Ultima Control can support your plant
Generator Electrical Fault Finding
Structured diagnosis of starting, charging, shutdown, sensing, wiring and intermittent electrical faults.
Generator Controller Repairs and Replacement
Diagnosis, replacement, programming and recommissioning of generator controllers and associated inputs and outputs.
Generator Preventative Electrical Maintenance
Planned electrical inspections, functional tests and control-system checks intended to reduce avoidable generator failures.
Generator Control System Upgrades
Modernisation of obsolete controllers, protection, communications and operator interfaces on serviceable generator sets.
Generator Alternator and Excitation System Testing
Testing of alternator output, AVR operation, excitation circuits, voltage sensing and related protection interfaces.
Generator Synchronising and Load Sharing Repairs
Fault finding and recommissioning of synchronising, kW/kVAr load sharing and multi-generator power-management systems.
Generator ATS and Switchboard Control Repairs
Repairs to automatic transfer, breaker-control, interlock, remote-start and generator switchboard control circuits.
Generator Wiring Harness Repairs
Inspection, repair and manufacture of robust engine and generator wiring harnesses for harsh operating environments.
Generator SCADA and Remote Monitoring Support
Engineering support for generator alarms, trends, communications, runtime data and control-room operator displays.
Generator Electrical Commissioning and Testing
Electrical and controls commissioning for new, upgraded or repaired generators and multi-set power systems.
Breakdown support
Generator will not start, transfer, synchronise or carry load?
Send the controller fault code, generator details, panel photos and a brief description of what happened. We can use that information to prepare an efficient diagnostic scope.
Planned maintenance
Reduce avoidable electrical and control failures
A planned inspection and functional-test program can expose weak batteries, charger issues, loose connections, damaged wiring, stale alarms and failed automatic sequences before an emergency start is required.
Generator systems we support
- Single standby diesel generator sets
- Multi-generator parallel power stations
- Automatic mains failure and transfer systems
- Industrial engine and generator control panels
- Generator PLC, HMI, SCADA and remote monitoring systems
- Legacy generator controls requiring upgrade or replacement
Frequently asked questions
Planning your service
Do you repair diesel engines?
Ultima Control specialises in the generator’s electrical and control systems, including controllers, wiring, protection, switchgear interfaces, synchronising and SCADA. Engine-internal and mechanical overhaul work is outside our core scope.
Can you work on parallel generator systems?
Yes. We support synchronising, active and reactive load sharing, breaker controls, sequencing and power-management systems for multi-generator installations.
Can you maintain older generator control systems?
Yes. We can fault find existing controls and develop an upgrade path when controllers, displays or communications hardware are obsolete or unsupported.