Why Does My Generator Keep Cutting Out? | Elite Electric, Plumbing & Air (2024)

Generator Cutting Out? Here's Why!

Generators are useful additions to Florida homes due to their ability to power your home in the event of a storm or natural disaster. Like any home system, generators have their own set of issues that can cause them to shut off unexpectedly. This can become increasingly frustrating when you are preparing to use your system in the event of an emergency. Our technicians have listed out a few of the common causes of your generator cutting out or shutting down altogether. Find out what they are below!

Overloading

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One of the most common causes of a generator cutting out is overloading. Since most modern generators come with automatic switch-offs, they will shut down when they become overloaded. However, you will not find this issue in older models because they don’t have this safety feature. The benefit of an automatic shut-off is the generator will not keep running while underpowering the appliances connected to it, in return, maintaining the vitality of your appliances. In order to keep your generator from overloading, you will need to lessen the demand for your generator. Ensure you are adding load according to the size and capacity of your generator.

Oil Levels

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Your generator can also shut off if there is an issue with the oil level, either too low of a level or an excess of oil. When oil levels are low in your generator, the oil will quickly heat up when your system is turned on, causing the generator to shut down. If there is too much oil then the generator’s sensors will shut itself down. It is crucial to check the oil level within your generator to keep it running smoothly without any problems.

Water Levels

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If you also have too low water levels in the radiator then the system can shut down. When there are optimal water levels within your radiator, the engine, voltage meters, and control panel will all function properly. Ensure the water levels within the radiator do not dry out, and regularly check the radiator’s water levels prior to turning your generator on.

Fuel Tank

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One of the main reasons your generator may be cutting out is a faulty fuel tank or fuel pipe. Fuel pipes carry and distribute fuel from the fuel tank to the engine and the carburetor. When the fuel does not flow within the pipes properly, it can cause pressure inside the pipes leading to supply issues. An indication of this is leaking on or around the pipes or below the surface of the generator. If you do notice spots, schedule an appointment with a professional to get your fuel tank cleaned to release the pressure. It is crucial to fix any leaks on the pipes as well.

Carburetor

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Finally, if your system’s carburetor is faulty it will shut down in just a few seconds. Bad fuel left inside the carburetor can also lead to problems within it. The ingredients from the accumulated fuel can enter and clog the carburetor, preventing the proper flow of fuel. You can opt to clean the carburetor yourself, but if the problem is not resolved it is best to schedule an appointment with a technician to replace the faulty carburetor entirely.

These are just a few of the reasons why your generator may be cutting out. It is easier said than done to pinpoint the problem due to the number of moving parts. One of our Elite technicians would be more than happy to help mitigate your generator’s problem. Give our team a call today at (772) 362-9860.

Why Does My Generator Keep Cutting Out? | Elite Electric, Plumbing & Air (2024)

FAQs

Why Does My Generator Keep Cutting Out? | Elite Electric, Plumbing & Air? ›

One of the main reasons your generator may be cutting out is a faulty fuel tank or fuel pipe. Fuel pipes carry and distribute fuel from the fuel tank to the engine and the carburetor. When the fuel does not flow within the pipes properly, it can cause pressure inside the pipes leading to supply issues.

Why does my generator keep cutting out? ›

If you are running too much equipment on too small of a generator, the generator may shut down in order to avoid putting too much stress on your appliances. The only way to remedy a loss of power due to overload is to shut off the generator, reduce the load by unplugging unneeded appliances, and restart the generator.

Why does my generator keep kicking out? ›

It could be due to overloading, a short circuit, a faulty component, or improper wiring. Consulting a professional electrician is recommended to diagnose and resolve the issue to ensure safe and reliable generator operation.

What causes a generator to surge up and down? ›

Failing capacitor or other components. A failing, damaged, or aging capacitor can create wild fluctuations in the regulation of power supply and distribution. Poor maintenance. Like a car (or any other mechanical or electrical device), your generator should be put through its paces frequently.

Why does my generator run for 5 minutes then shut off? ›

A good place to start, it is likely a fuel cap not venting, next time the gen. starts to die, open the fuel cap and see if the engine picks up and keeps running. If so, replace the cap.

What is the most common problem of generator? ›

Battery failure is the most common generator issue. Batteries wear down with age, providing less and less power as time goes on. Knowing the service life of your generator's battery will ensure you know to replace it before it stops working.

Why does my GFCI outlet keep tripping on my generator? ›

This may happen if you connect malfunctioning or defective appliances. Loose, corroded wires or connections may also be to blame. Once the GFCI outlet senses an overload, it trips or "breaks" the circuit.

How do you diagnose a generator problem? ›

Luckily, most of these issues are easy to fix yourself!
  1. Check the Fuel Tank. The first place to look if your generator won't start is the fuel tank. ...
  2. Check the Oil Level. ...
  3. Check the Start Switch. ...
  4. Check the Choke Valve Switch. ...
  5. Check the Spark Plug. ...
  6. Check the Carburetor. ...
  7. Check the Fuel Valve. ...
  8. Check the Ignition Coil.

Why does my generator shut off after 30 minutes? ›

As the outside temperatures rise, it is possible for the fuel tank to pressurize or actually become vacuum sealed due to the gas cap failing to check the pressure or vacuum.

How to stop generator surging? ›

Ensure you have the correct fuel, maintain proper oil levels, change filters when necessary, and keep an eye on spark plugs. These simple steps can go a long way in preventing surging and ensuring your generator remains reliable.

What causes unstable voltage on a generator? ›

Generator voltage problems that produce unstable voltage output are generally caused by damage to the engine components inside. This can happen due to wrong use or other external factors. It would be best to leave this matter to a qualified technician in order not to further damage the generator.

Why is my generator struggling to run? ›

The problem could be caused by a few things like the carburettor, fuel filter, kinked fuel line, or a weak gas pump. It can also be a carburettor gasket. The most common issue with a generator that is occasionally used, where some gas is kept in the tank, is varnish deposit in the carburettor.

Why is my generator cutting in and out? ›

Overload is the most common reason for a generator to start for a few seconds and then stop. This happens when you have too many devices connected to the generator, and it is struggling to handle it.

Why is my generator tripping off? ›

A GENERATOR CAN TRIP

Just like your home's electrical system, a generator is protected by one or more circuit breakers. These will switch the generator off whenever an electrical overload or surge is detected. This prevents damage to the generator and the appliances it is powering.

What happens if you run a generator for too long? ›

Portable generators specifically also require unleaded gas, and when the tank dries out, many models are designed with an auto shut-off to prevent damage. High-quality generator models can run for several hundred hours, but this doesn't mean the engine won't die out without the required lubricant and fuel.

Why does my generator run for 10 seconds then shut off? ›

Overload is the most common reason for a generator to start for a few seconds and then stop.

How do I stop my generator from tripping? ›

Disconnect all cords and devices from the generator. Then restart the generator. Reset GFCI receptacle by pressing the “Reset” button on the outlet. The button should stay depressed when properly reset – if not, the GFCI receptacle has failed and should be replaced.

Why does my generator keep bogging down? ›

When a residential backup generator starts to bog down, the most likely reason is a clogged carburetor. Carburetors get clogged when you leave the generator with fuel for long periods of time. The fuel evaporates over time, leaving a sticky residue.

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