South Florida
Common Onan Generator Problems and Their Causes
The symptoms owners report most — marine, won't start — usually trace back to fuel and air delivery, cooling system condition, hydraulic contamination, worn drive components or wiring faults. Each shows up with distinct signs that narrow the diagnosis quickly, and fault codes on newer machines point to the circuit to test first.
600+
Service Calls Per Year
282
Reoccurring Clients
Onan Diagnostics
Engine, alternator and control panel faults on the Onan generator diagnosed on site, with load testing where needed.
Onan No-Start & Shutdown Repair
Fuel, battery, starter, low-oil and overheat shutdowns on the Onan generator traced and repaired.
Onan Fuel System Repair
Injectors, pumps, filters and contaminated fuel problems on the Onan generator corrected.
Onan Cooling System Repair
Radiators, water pumps, thermostats and fans on the Onan generator repaired.
Onan Control Panel & ATS
Controllers, sensors, wiring and transfer switch faults on the Onan generator repaired.
Onan Charging & Batteries
Battery chargers, alternators and batteries on the Onan generator tested and replaced.
Onan Load Bank Testing
Load testing confirms the Onan generator carries its rated load before you need it.
Onan Scheduled Service
Oil, filters, coolant, belts and exercise checks on the Onan generator on a schedule.
Engine
Diesel or gas engine repair on the Onan generator.
Alternator / Generator End
Output and winding fault repair.
Control Panel
Controller and sensor repair on the Onan generator.
Transfer Switch
ATS repair and testing.
Fuel System
Injector, pump and filter repair.
Cooling System
Radiator and water pump repair.
Batteries & Charger
Starting system service.
Governor & Voltage Regulator
Speed and voltage control repair.
Enclosure & Exhaust
Housing, muffler and exhaust repair.
CITY
Reach Out?
Need service for your heavy equipment? Our mobile diesel mechanics provide on-site diagnostics, engine repair, hydraulic service, and drivetrain repairs to keep your machines running with minimal downtime.
Yes. Our diesel mechanics provide mobile, on-site heavy equipment repair throughout South Florida. We service equipment directly at job sites to reduce downtime and avoid unnecessary transport.
We repair a wide range of heavy equipment, including excavators, loaders, backhoes, skid steers, dozers, agricultural machinery, and other diesel-powered equipment used in construction and industrial operations.
Response times vary based on location and workload, but our mobile diesel mechanics aim to provide prompt service to diagnose and repair equipment as efficiently as possible.