Generator Repair in Savannah, GA: When the Standby Unit Won't Do Its One Job

The annual service is a scheduled visit to a machine that runs: fresh oil, a battery load test, a transfer test, the enclosure cleaned out. Repair is the visit for a machine that doesn't run, or runs and then stops. The distinction matters on the phone, because the first one gets booked for a mild week in spring and the second one gets booked for tomorrow. A unit that still starts itself every week and simply hasn't been touched in a couple of years wants the service. A unit that has done any of the things in the next section wants this page, and the "Existing generator won't run" option on the quote form is the fastest way to say so.

• A tired starter battery. The commonest reason a standby does nothing at all. Coastal heat shortens a battery's life, and a battery that spins a warm engine on a Wednesday test can fail to turn a cold one at three in the morning in January.
• Fuel that isn't arriving. Gas pressure that has drifted low at the regulator, a valve left closed after unrelated plumbing work, or a propane tank that ran dry two days into an outage. The engine cranks, catches for a second, and dies.
• Old oil and the low-oil shutdown. A unit that carried the house for days in a storm is running on oil that did a year's work in a week. The controller protects the engine by shutting it down, and it stays down until somebody clears the cause.
• A fault the controller has shown for weeks. A charger fault, a sensor fault, a clock lost in a brownout, and nobody walked past the screen.
• A transfer switch that never hands over. The unit starts and runs, and the house stays dark. That fault is at the panel, not in the engine, which is exactly where a homeowner should not be reaching.
• Salt, water and wildlife. Corroded terminals inside the enclosure on Wilmington Island and the marsh-front lots; anywhere in the county, wasp nests in the louvers, ants in the controller wiring, and flood water that reached the unit while the street was under.

We start at the controller, because the fault history says what the unit already knows about itself. Then the battery gets a load test rather than a voltage check, fuel pressure is read at the regulator under load, and the transfer switch gets a forced transfer so we watch the house move over and back. The enclosure comes open last: wiring, terminals, charger, louvers, any sign of water. You leave with a written finding: what failed, what it takes to fix, and whether the fix is worth doing on a unit of that age. No price appears on this page, because a repair is priced from that finding and the part in question, not from a guess typed before anyone has opened your enclosure.

Helene's restoration ran the better part of a week on some Chatham County streets, and after a storm like that the repair calls along the coast run to the same handful of causes: units that carried a house for days and shut down on oil, louvers packed with pine straw, controllers full of undervoltage faults from a grid that flickered for hours, and a few machines that took water when the street flooded. The storm-week playbook covers the walk-around before any restart; a unit that took on water stays off until it has been looked at, and a unit that ran for days gets its oil changed before the next forecast. A unit serviced in the spring and exercised all summer is rarely on that list.

There is a point where we say so. A unit that has thrown the same fault three times, an engine old enough that parts are hard to find, or a machine sized for a smaller household than the one now living in the house is money better spent on a replacement, and we would rather lose a repair ticket than sell you a fourth visit to the same problem. That conversation starts with the sizing guide, because the replacement should fit the house you have now, and continues with what a replacement generator installation runs in Savannah, tier by tier, so repair-or-replace is decided against a real number. In between, the maintenance schedule is how a repaired unit stays off this page.

Regulator — the valve that steps the gas main's pressure down to what the engine wants; the first check when a unit cranks but won't catch. Starter battery — the cranking supply, kept up by the unit's own charger and tested under load, not by voltage alone. Automatic transfer switch — the contactor at your panel that moves the house between grid and generator; a transfer fault is electrical work, performed by a licensed Georgia electrical contractor. Load bank — the test load we bring so the unit is proven under real current, not at idle.