Generator Repair near you

The battery is the single most common reason a standby generator does not start, and it fails in a way that hides: the unit sits on a charger for years, the plates degrade, and nothing reveals the problem until the moment a real outage asks for cranking current. The charger itself is the second suspect, because a failed charger and a healthy battery look identical until the battery has been slowly drained. This is why technicians test under load rather than trusting a voltage reading.

Fuel is the next cluster. Gasoline in a portable machine degrades in storage, varnishes carburetor passages and leaves a generator that runs briefly on the fuel in the bowl and then dies. Propane and natural gas do not degrade, but regulators fail, tanks run low, and a gas supply sized for the house's appliances may not deliver enough for the generator while everything else is running. On a standby unit, that shows up as a machine that starts and then stumbles when the load transfers.

The third cluster is everything between the generator and the house. A generator that runs perfectly while the lights stay off is usually a transfer switch, a control wire, a sensing circuit or a breaker problem, not an engine problem, and that part of the system is electrical work. Add to this the slow damage that outdoor equipment accumulates, including corrosion, water entry and rodents in wiring, and a pattern emerges: most real repairs are found by exercising and load-testing the system, not by waiting for the storm to test it for you.

Preventive service on a standby unit follows the manufacturer's schedule, and the intervals are usually expressed both in run hours and in calendar time, which matters because a generator that never runs still ages. Expect oil and filter changes, air and fuel filters, spark plugs, coolant service where applicable, battery testing and replacement on an interval rather than on failure, inspection of belts and hoses, cleaning of the enclosure and intakes, and verification that the controller's settings and exercise schedule are what you think they are. Ask for a written report of what was found and what was changed.

The test that matters most is the one people skip: an actual transfer under load, with the utility supply opened, so the whole chain from sensing through starting to transferring is proven. An exercise run that spins the engine with no load proves the engine turns and little else. Schedule the load test at a time when a failure is inconvenient rather than dangerous, and be present for it if you can, because it is also your chance to learn the manual transfer procedure.

Newer portable generators add a component older ones never had, and it needs to be understood rather than bypassed. Under the voluntary standard ANSI/PGMA G300, the carbon monoxide safety system includes self-monitoring to detect correct operation of the sensing element, loss of the power source for the system and the end of life of the sensor, and requires the engine to shut down when a fault or end of life is detected. In other words, a generator that suddenly refuses to run may be telling you its safety system has expired or failed, and the answer is service, never disabling it: the standard also requires the system to be tamper resistant.

Portable generators have a substantial recall history in the United States, and a recall remedy is free while a repair is not. The CPSC-run saferproducts.gov recall service lists numerous portable generator recalls, and the pattern is instructive: a 2026 recall of Generac portable generators over fuel leaking from the carburetor when the unit is first filled with gasoline, posing a fire and burn hazard; a 2023 recall of Generac portable generators whose fuel tank could fail to vent adequately and expel fuel when opened; a 2023 American Honda recall over a fuel filler cap that could seal improperly and leak fuel or vapor; and a 2021 Northern Tool recall of Powerhorse portable generators with a wiring error that could deliver an electric shock.

Some recalls are about the parts people touch rather than the engine. Generac portable generators were recalled in 2021 over an unlocked handle that could pinch fingers against the frame, posing finger amputation and crushing hazards, and CPSC reannounced that recall in 2022 after an additional amputation and crushing injury was reported and a new repair kit became available. A reannounced recall is worth noticing, because it means the original notice did not reach enough owners.

Before booking a repair, find the model and serial number on the data plate, check the recall record, and register the product with the manufacturer so future notices reach you. If your unit is covered, contact the manufacturer for the remedy rather than paying a technician to fix a defect the maker is obliged to correct. Tell any technician you do hire what you found, since it may explain the symptom in front of them.

A generator awaiting repair is often a generator being run in improvised ways, and that is exactly when carbon monoxide incidents happen. CPSC's guidance does not bend for a test run: never run a generator in the home, garage or crawlspace, and do not imagine that opening doors and windows or running a fan will prevent carbon monoxide from accumulating indoors. Running one in an attached garage can produce fatal concentrations inside the house, and the same is true of a basement or crawlspace.

The scale of the hazard is why the rule is stated so flatly. CPSC's rulemaking record puts the carbon monoxide emission rates of portable generators on the order of hundreds of times those of gasoline-powered automobiles, and records at least 1,332 carbon monoxide deaths involving portable generators from 2004 through 2021, along with 17,569 non-fatal poisonings treated in hospital emergency departments across the same period, about 976 a year. Keep test runs outdoors and well away from the house, with working carbon monoxide alarms inside.

If a carbon monoxide alarm sounds or anyone feels unwell, act before investigating. CPSC's instruction is to get fresh air immediately, leave the home, call for assistance from a neighbor's home, get medical attention and tell the staff that carbon monoxide poisoning is suspected, and let the fire department decide when it is safe to go back inside. Do not shut the alarm off and go back to the machine.

Repair is usually the right answer while the failures are consumables and accessories: batteries, chargers, filters, plugs, a carburetor, a regulator, a controller board on a unit still supported by its maker. These are predictable parts with predictable prices, and a well-maintained standby unit can go a long time on them.

Replacement starts to win when parts support ends, when the same fault returns after being repaired, when the engine or alternator itself has failed, or when corrosion has reached the enclosure and the wiring rather than the surface. It also wins when the original sizing was wrong, because paying to keep alive a machine that cannot carry what the household now depends on is the most expensive outcome available. A house that has added electric heating, a well pump or medical equipment since the generator was installed is a candidate for a fresh load calculation rather than another repair.

There is a middle path worth asking about: keeping the generator and replacing the transfer equipment, or the reverse. Ask the technician to price the alternatives side by side, to say plainly which parts are still available for your model, and to tell you what they would expect to fail next. A repair that buys one more season is a legitimate choice as long as you are choosing it rather than discovering it.

Engine and alternator work is generator technician territory, and the manufacturer's dealer network matters here because of parts availability and warranty. Anything on the transfer switch, the circuits it serves or the service equipment is licensed electrical work: Texas, for instance, requires anyone who performs or offers to perform non-exempt electrical work to be licensed and to do it through a licensed electrical contractor, and other states have their own boards and their own rules. Ask who is doing what and verify the licence with the state board.

Fuel work is a third credential again. A gas or propane connection, a regulator replacement or a change in the fuel supply is the province of whoever your state licenses for gas work, and it is not a job for a generator technician who is not credentialed for it. If a proposed repair moves or resizes the fuel connection, ask specifically who will do it and under what licence.

Repairs that change the installation rather than restore it may bring a permit with them. Replacing a transfer switch, relocating equipment, altering the circuits that are backed up or replacing the generator with a different unit all touch work that inspectors look at, including the identification signage required by the standby systems article of the National Electrical Code as adopted in your state, which in Washington is spelled out in chapter 296-46B WAC. Ask before the work, not after, and keep the paperwork.