Generator Repair in South Carolina
Fast, Reliable Generator Repair Across the Lowcountry
A standby generator is only valuable when it works. After a storm rolls through Charleston, Bluffton, or Beaufort and the power goes out, the last thing you want to discover is that your generator fails to start or shuts down minutes after kicking on.
ALL Plumbing provides professional generator repair and maintenance services throughout the South Carolina Lowcountry. Whether your standby unit is throwing a fault code, running rough, failing to transfer power, or simply has not been serviced in years, our certified technicians diagnose and resolve the issue so your generator is ready when you need it most.
Common Generator Problems We Repair
Standby generators are reliable machines, but they require regular maintenance to perform at their best. The following are the most common generator issues ALL Plumbing technicians encounter across the Lowcountry:
Generator Won’t Start This is the most common and most alarming problem homeowners discover — typically during a power outage when they need the unit most. Causes include a dead battery, low oil shutoff activation, fuel supply issues, a failed transfer switch, or a fault code that has locked out the unit. We diagnose the root cause and restore reliable starting.
Generator Starts but Shuts Down Quickly If your generator starts and then cuts off within minutes, the likely culprits include low oil levels triggering the safety shutoff, overheating due to blocked air circulation, a dirty air filter, or coolant issues on larger liquid-cooled units. This is a problem that needs to be resolved before it matters — not during an outage.
Generator Runs Rough or Surges Rough running, surging, or RPM instability typically points to fuel system issues — old or contaminated fuel, a clogged carburetor or fuel injector, or a failing voltage regulator. Lowcountry humidity can cause fuel to degrade faster than expected, particularly in units that sit idle for extended periods.
Transfer Switch Problems The transfer switch is the component that automatically disconnects your home from the utility grid and connects it to the generator when power is lost. A faulty transfer switch means your generator may run but your home stays dark. We diagnose and replace transfer switches for both automatic and manual standby systems.
Low Power Output or Voltage Issues If your generator is running but appliances are not operating correctly — lights dimming, HVAC struggling, electronics behaving erratically — the issue may be a voltage regulation problem, a failing alternator winding, or a load imbalance. These issues require professional diagnosis.
Oil Leaks and Fluid Issues Generators with oil leaks can trigger low-oil shutoffs and, left unaddressed, can cause serious engine damage. We identify the source of the leak and repair it before it becomes a more costly problem.
Battery Failures Standby generators rely on a battery for automatic startup. Generator batteries typically last three to five years and should be inspected and tested regularly. A failed battery means the unit cannot start automatically during an outage — defeating the purpose of the system.
Corroded Connections and Wiring In the Lowcountry’s salt air and humid environment, electrical connections on outdoor generator enclosures are subject to accelerated corrosion. Corroded connections cause unreliable operation and are a safety concern. We inspect and restore electrical connections as part of our service process.
Generator Brands We Service
ALL Plumbing technicians are trained to service and repair the major standby generator brands used throughout South Carolina, including:
- Generac — the most widely installed residential standby generator brand in the US, including Guardian Series, Protector Series, and PowerPact units
- Kohler — commercial-grade residential generators known for their durability and quiet operation
- Briggs & Stratton — standby units commonly found in residential applications
- Champion — portable and standby generators requiring service or repair
If you have a brand not listed here, contact us and we will advise on whether we can service your unit.
Generator Maintenance: The Key to Reliable Performance
Most generator failures during actual outages are preventable with routine maintenance. ALL Plumbing recommends the following maintenance schedule for standby generators:
Annual Service (minimum):
- Oil and filter change
- Air filter inspection and replacement
- Spark plug inspection and replacement as needed
- Battery test and replacement if required
- Transfer switch inspection and testing
- Fuel system inspection
- Load test to confirm full output capability
- Inspection of enclosure, exhaust, and connections
Bi-Annual or As-Needed:
- Coolant system service for liquid-cooled units
- Fuel stabilizer treatment for units with extended idle periods
- Enclosure cleaning and connection inspection
Many homeowners discover during an annual service visit that their generator has a developing problem that would have caused a failure during an outage. Proactive maintenance catches these issues before they matter.
Weekly Exercise Cycle:
Most modern standby generators include an automatic weekly exercise cycle that runs the unit for a short period to keep components lubricated and the battery charged. If your generator is not set up for automatic exercise, we can configure this during a service visit.
Frequently Asked Questions About Generator Repair
My generator won’t start. What should I do before calling?
Check the basics first: confirm the unit has fuel, that the oil level is adequate, and that the battery disconnect switch (if equipped) is in the ON position. If these are all normal and the unit still will not start, there is likely a mechanical or electrical issue that requires professional diagnosis. Call 843-761-8002.
How long does a generator repair typically take?
Most common repairs — battery replacement, oil system service, transfer switch testing, minor fuel system work — can be completed in a single service visit. More involved repairs, including transfer switch replacement or alternator work, may require additional time or parts ordering. We communicate clearly about timeline before beginning any significant repair.
My generator runs fine during its weekly test cycle but failed during an actual outage. Why?
Weekly test cycles are brief and run under no load. An actual outage requires the generator to run for extended periods under the full electrical load of your home. Issues that do not manifest during a brief, unloaded test — including fuel system problems, voltage regulation issues, and thermal problems — often appear under real-world conditions. An annual load test that runs the generator at full capacity for an extended period catches these problems before they matter.
How often should I have my standby generator serviced?
At minimum, annually. Generators in the Lowcountry’s humid, salt-air environment may benefit from more frequent inspections given the accelerated corrosion that affects electrical connections and enclosures. We recommend scheduling service in the spring — before hurricane season — to confirm your unit is ready.
My generator is making an unusual noise. Is that a problem?
Unusual noises — knocking, surging, excessive vibration, or a change in the sound of normal operation — are worth having diagnosed. These sounds often indicate developing mechanical issues that are much less expensive to address early. Do not wait until the next outage to find out what the noise means.
Can you repair a generator that has been sitting unused for several years?
Yes, though extended storage does create specific issues — degraded fuel, battery failure, dried gaskets, and corroded connections among them. We assess the condition of the unit, address the issues found, and confirm the generator is ready for reliable service.
Is generator repair covered by homeowners insurance?
This depends on your policy and the cause of the failure. Damage caused by a covered event may be reimbursable. We provide documentation of the issue and repair that you can submit to your insurer. Check with your insurance agent for specifics.
Do you install new generators as well?
Yes. Generator installation is a core ALL Plumbing service throughout the Lowcountry. If your existing generator is beyond repair or you are considering upgrading to a larger or newer unit, we can assess and recommend the right option for your home.
Do not wait for the next storm to find out your generator is not ready. ALL Plumbing provides professional generator repair and maintenance throughout South Carolina.
Call 843-761-8002 or contact us online to schedule generator service today.
