My Generac Generator Won’t Start Why

My Generac Generator Won't Star

My Generac Generator Won’t Start Why? I will answer this question in this post, so keep reading.

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The Generac generator is one of the best generators that are used at home to power devices once there is a power outage.

You will also learn about 13 common reasons why your generator may not start.

Most people use this type of generator to ensure that their refrigerator, heating units and other sensitive devices like phones and laptops running in winter storms.

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In particular, it does not always mean that Generac generators will start in case of an emergency.

Since they are machines just like any other, they can also have some problems which can hinder them from starting.

This requires you to repair some of the issues, and if you find it hard to do it, you can call the help of a professional to fix it.

Some reasons can make your Generac generator not to start, and you have to know them for you fix them and get your running as normal.

One of the major things that you should check in case this happens is the spark plug.

You have to check it and find out if there are symptoms of damage or wear.

In case the porcelain insulator has cracked, an electrode is damaged or burned away.

Sometimes, there may be a heavy carbon buildup on the electrode, and this requires that the spark plug should be replaced. Learn how to clean up your generator here.

Generac standby generator won’t start

My Generac Generator

The Generac standby generators may have a problem when it comes to starting.

Just like other Generac generators, the reasons for not starting might be similar, and this requires you to check for any.

The spark plug may have a problem where it can be damaged, or it shows the signs of wear.

Ensure to examine if the plug is defective by the use of a tool like a spark plug tester.

Additionally, there may be another major reason as to why the Generac standby generator won’t start.

There are chances that the carburetor of the generator may be clogged.

Issues of fuel being left in the generator for a long time can make the carburetor clog.

Generac propane generator won’t start

There are those Generac generators that operate using propane, and they may have a problem with starting just like any other Generac generators.

Fuel can be one of the reasons that the generator won’t start running and you have to check if it is available.

After checking on fuel, you have to find out if the air intake or filter and the exhaust pipe are in good condition.

You have to start by checking the spark plug and see if it is in good condition.

If the spark plug has no problem, it is time for you to check on other parts of the generator that are more expensive.

It is time for you to see if the regulator is running normally and if not, you need to have it fixed so that the generator starts to run.

Generac natural gas generator won’t start

My Generac

When your natural gas Generac generator has a problem with starting, there may be some reasons behind it.

The most common problem can be fuel, and just as its name suggests, they run on natural gas.

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Check whether your natural gas supplier is keeping things going and if the gas is supplied, it is time for you to look at other issues that may likely cause a problem.

Down at the right, you will find you will see some two wires coming from it. Pull out the one that is on top to ensure that the gas comes out.

If that does not work, it is time to see if there is a spark coming from the spark plugs.

If it checks out, then there may be something that is shorting out the ignition coils.

Generac generator won’t turn over

We have looked at some of the reasons as to why your Generac generator won’t start.

Fuel supply is the first thing to look, ensure that it is available so that you get to know the other reasons as to why your Generac won’t turn over.

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At this time, you have to check your ignition coil since it is responsible for sending power to the spark plug when the generator’s engine is running.

The engine will not start in case the ignition coil is defective. One can think of replacing the ignition coil to see if the problem can be solved.

Ensure to test the ignition coil using an ignition coil tester and replace it if it is defective. This will help solve your generator’s problem when it is not starting.

Generac generator will not crank

Many reasons are behind your Generac generator not starting.

All the reasons can be arranged from the most likely reason to less one.

This does not mean that the less likely reasons won’t cause your Generac generator not to crank.

There are situations when the generator starts but shuts down after a few seconds, and this means that there is a problem to be fixed.

First, you have to check if fuel is available whether the Generac generator is running on natural gas or propane.

If fuel is not available, then it means that your generator will not start at all.

There are some cases when you leave fuel in the generator for a long time.

Some ingredients of the fuel evaporate over time hence leaving a stickier and thicker substance.

The thicker substance will have a problem to your carburetor which clogs hence the engine will not start at all.

Ensure to check your carburetor and find out if it is clogged and try to clean it using a carburetor cleaner. It is not always a guarantee that cleaning can help to solve the carburetor problem.

In some cases, it will require you to rebuild the carburetor when cleaning is not effective.

You can also choose to replace the whole carburetor so that your generator can crank again.

Other than the points mentioned above, there are some that may cause a problem to your Generac generator.

The battery of your generator may be dying slowly, and this can often make your generator not to crank.

The battery may keep dying due to different reasons but we will at the main reasons here.

First, the voltage regulator should send the right amount of power to the battery to keep it charged.

In case it is defective, it won’t send enough voltage to the battery, and this will make it drain quickly.

The alternator may also be at fault and to determine this, a multimeter can be used to check for its continuity.

New Generac generator won’t start

A new Generac generator may fail to start due to various reasons.

We assume that a new generator is in good condition since it was first tested before released to the market.

In case it fails to start at home, it is better for you to consider that there may be a fault in its installation.

It is advisable for you to find a qualified Generac technician to install the generator for you at home and ensure that there is no error at all.

There may be chances that the generator is not in the auto.

Specifically, means that it will now start power immediately goes and this will have a lot of problems in your home when you are not around. Learn more about diesel problems and solutions guide here.

A Quick Generac generator troubleshooting

My Generac Generator Won't

The idea of installing a Generac generator in your home can be a great one especially if you care about keeping your functional as well as safe in case of an outage.

However, it will not be of any good to you if it keeps bugging out or fails to run.

In case you are having some problems with your generator, there are a few things that you can do to fix them.

You need to find a specialist who deals with Generac generators, and he will help you troubleshooting your generator.

We have outlined some things that one can do.

1. Ensure that fuel is available

There is a chance that the generator was used before and it has not been refueled.

Also, the system of the generator may also have sprung a leak hence the fuel may not be available.

The mechanical gauge to show the level of fuel in your generator can stick, and this will give a false level of fuel.

Some fuel tanks may fail to start your generator in case the fuel level is low and therefore, you should check the level of fuel periodically and top it as required.

2. Check all electrical connections

Ensure that all wires that are visible and the fuel lines are tight and snug with no cracking or fraying.

In case of a wiring issue, it is better for you to call a professional to fix it.

Additionally, ensure that the generator is engaged and the switch is on the ‘on’ position firmly.

If the generator has served for some time, it can develop a sticking issue, and the switch may not fully engage without you pushing it.

It may not sound helpful, but you will realize that the generator will have a problem in operating.

Remember that you cannot handle all issues and therefore, a professional should be there to help.

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How to troubleshoot a Generac generator (Step by Step)

Generac produces several generators that plan to provide maximum power and maximum mobility.

Apart from that, the benefits of using one of these units after centering will be limited if you start to face the penetration effects of essential problems, such as overheating, intermittent switching or improperly installed fuel valves. Steps of how to troubleshoot a Generac generator

Step 1

Check whether the alternator is overheating; it will be indicated by heat light.

Step 2

Make sure the device is appropriately adapted for use at work. Simple electrical switching is often a problem, so check the AC outlets in your Generac home generator to see if the button on the front panel is selected. Press the button to turn on the switch again.

Step 3

Avoid the automatic shorts from the generator, and make sure that the generator is on a flat surface.

Place the spirit level above the Generac home generator, and if it is not level, use the wooden box to change the balance; the uneven surface may cause the generator to stop automatically.

Step 4

Modify the fuel valveS if the Generac generator is working as a whole. Locate the fuel valve on the device and set it to “On”.

Champion generator won’t start

Champion generator won't start

The champion generator should be reliable like any other generator since buyers require them for purposes of emergency.

For people living in remote areas, it will cause some minor discomforts when the generators fail to start.

It is crucial to note that unexpected failures can happen even on brands that are popular like champion especially when the generator has not been in use for a while.

Low fuel level or degraded fuel can cause the generator not to start, and therefore you should check to refill or change the fuel.

How to fix a champion generator that fails to start

1. Check the starting system

My Generac Generator solution

Some of the champion generators are not simple to start, and this will cause problems with the air filter.

In case the air filter is dirty or blocked, the fuel won’t properly burn since there is not enough air supply.

You have to use your manual to find the air filter to fix it, and it is usually found around the choke from the front side.

Be keen when opening your generator and while cleaning it.

You can remove the air filter and replace with a different one. Sometimes, you can clean it depending on the model of the champion generator.

2. Examine the batteries or the spark plug

If you realize that the air filter has no problems, it is time to inspect the spark plug. Test it to find out if it is still working or it is already damaged.

You are free to clean it, but if it does not work, you better replace it with a new one. Ensure that the wires are properly installed when installing a different spark plug.

Some models have an electronic system of starting hence you should pet some new batteries to start the generator properly.

3. Check the level of oil

Most of the champion generators are built with a low oil sensor which will prevent them from starting in case the level of oil is too low.

It is your responsibility to check indicators and see the oil’s actual level in the crankcase.

If the oil is required, you can only add the one that is preferred by the champion’s manufacturers.

In case the oil is enough and but the sensor shows otherwise, then it may be having a problem.

The manual can help you locate it, or you can trace the yellow wire in the crankcase.

4. Check the fuel level

The generators can degrade the fuel or the full has been in the tank for a long period of three months. This will not be good for you since it can clog the carburetor and therefore you need to fix properly drain it.

A clogged carburetor can be one of the reasons behind the failure to start off your champion generator.

You can remove the carburetor, clean it properly. In case it fails, it is advisable for you to go for a new carburetor. You can now try to restart your generator. Learn more about the generators’ price here.

The Power Will Flow With Generac Generators

Generac generator problems

 Generac generator problems

Every summertime, you hear about the rolling blackouts and the power surges that damage so many electronics.

You do not have to be subject to the whims of the power company and power brokers.

Generac Generators can make you immune to all of those problems.

It will ensure that all your work is saved, and your data is not lost with a flicker of the power network.

It will also protect your equipment from the wear and tear blackouts places on them.

Generac Generators have the largest and most reliable generators you can find on the market today.

They have been in the business for so long, and you could say they are the market leader in emergency back up power systems.

Their authorized dealers will assess your needs, recommend the right product at the right price, ensure it is installed right the first time.

From small portable generators for a few WATS to keep your fridge and freezer running to broad diesel-powered liquid-cooled backup power systems.

Keep your edge on the competition by keeping your business going while everyone else is down and waiting for the power to come back on.

Safety, you need it, and the protection Generac Generators can give your home and worksite is fantastic.

Crime always seems to surge during extended blackouts, but with these generators, keeping your property well lit and running is the best deterrent to criminals that are looking for the ‘easy mark’.

This will make your customers feel better about you and make your family know that they are safe as well.

For that kind of peace of mind, you would think that it would be very costly.

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Call your local Generac Generators authorized dealer, and you will be amazed at how easily you can afford to get their systems installed and running.

They are deficient maintenance, keeping standby costs to a minimum.

The summertime blackouts can put excessive wear and tear on your computer, appliances, and anything electrical really.

Save your equipment and keep your property safe during a power outage.

Consider getting a Generac Generator — one of the industry leaders in generators today with low maintenance and minimal standby costs. Learn about generator running, but no power here.

Common reasons for Generac generator failure

The generator battery:

generators Problems infographic

A large number of Generac generators fail due to damaged batteries. Once the generator’s batteries fail, they won’t hold a charge for long hence they will not start your generator.

Failure happens when the battery is recharged and discharged too many times.

It is advisable for you to replace your batteries if it has been neglected or has been in use for about three years.

Coolant problem:

In case the coolant level is low due to leaking, or the coolant is not properly flowing; it makes the engine of the generator to get hot.

The sensors on the generator will detect the heat, and it will shut down. Occasionally, dust, grit and internal corrosion hinder the radiator core hence you should check for the cleanliness of your radiator.

Always remember to check for any coolant leaks internally in case the oil is discolored. Ensure that you follow every detail that we have outlined above so that your generator serves you well for a long time.

Some Generac models can be very expensive, and you will have wasted a lot of money if they fail to work.

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What You Didn’t Know About Used Generac generators

The cost of buying a new generator is a significant investment for any home or business.

Therefore, if you don’t want to stay in the dark when there are power outages, it would be best if you invested in a used generator, with the best one being from the Generac brand.

Used Generac generators for sale

The Generac brand name is a trusted company in the world, producing the best generators for residential and industrial purposes.

Therefore, purchasing used Generac generators will represent a sound investment opportunity. You will still get the same level of excellent performance from a used unit.

You can get used Generac generators ranging from 35kW to 2500kw. Therefore, whatever your power needs, you can get a handy used Generac generator.

How much do used Generac generators cost

Depending on the size of the used generators, you can save up to 50% of the value if you were buying a new one. Other trusted sellers can even offer up to 70% worth of savings.

You can get smaller ones from as low as $300, and the industrial engines which have added muscle can cost upwards of $10000, also depending on the size.

A new Generac generator priced at $2500, suitable for residential use, can, therefore, end costing as low as $1000.

Advantages and disadvantages of buying used Generac generators


• A used Generac generator has proved to offer better performance than a favorably priced new model from an unknown manufacturer

• You can get one who hasn’t been used for a long time meaning you will still be able to get maximum service from it for a considerable period

• They come with heavy-duty engines which will be sufficient for all your power needs

• Readily available and also straightforward to install

• They are energy efficient and relatively cheap to maintain compared to others


• You are unlikely to get a warranty when you buy a used Generac generator

• Relying on the words of the original buyer. You might get burned by a deceitful seller

To sum up, from the above advantages and considering the fact that you will be purchasing a trusted brand, you can be sure to get the best deal when buying a used Generac generator.

The critical thing to remember is to buy from verified sellers who are cable of performing tests so that you get a fully functioning Generac generator.

13 Common Reasons Why a Generator Won’t Start

A reliable power supply is essential in every organization. A cut in the power supply will lead to discontinuation of production processes leading to massive losses.

In hospitals lack of power supply for a few minutes may result too much damage.

It is vital to have an external power supply that won’t malfunction.

Many institutions have generators that directly supply power when electricity is unavailable. However, due to specific reasons, a generator may fail to start in the time leading to negative consequences.

What are the 13 common reasons a generator won’t start?

1) A dead battery

A battery fuels the operation of a generator. If the battery is dead, then it only means the generator will not start. If you experience a problem with starting the power system check the battery and if it is dead replace it.

2) Low levels of oil

Low levels of oil will render a generator not functional. Quickly check the level in the crankcase and refuel.

3) Has consumed all the gas

Gas is necessary for running a generator. Check if it has sufficient gasoline in the tank, if not add more.

4) The fuel valve is clogged or closed

The fuel valve controls the flowage of gas to the carburetor, and if it is locked or clogged, it will prevent gas from reaching the carburetor. Ensure it is open and working correctly.

5) Choke level faults

The choke level should always be closed when starting a generator and open when the generator is running. Make sure the choke level is in the right position.

6) A malfunctioning engine

An engine runs the generator. If there is a problem in the engine such as wear, cracking and leaks the generator will not function properly. The engine needs a replacement for it to operate effectively.

7) Clogging of the carburetor

If the generator is not frequently used, old gas may jam in the carburetor preventing it from proper functioning. Remove the carburetor’s bowl and clean it.

8) The spark plug is not working

Dirt may build up on the spark plug preventing it from functioning correctly. Clean it carefully and return it accurately in its position.

9) Electronic devices are plugged in during the startup process

Always make sure all devices are unplugged before attempting to start the generator.

10) Dirt on the air filter

A filter is necessary to allow air into the carburetor to assist in the ignition. If the air filter is blocked and can’t let the passage of air the carburetor will not work. Clean the air filter properly.

11) Coolant problems

Coolant is necessary for all types of generators. Overheating will lead to the generator parts malfunctioning. Ensure the coolant levels are normal.

12) Ignition coil not working

The ignition coil is responsible for sending power to the spark plug. Thus make sure the ignition coil is working effectively.

13) Oil sensor is not working

The oil sensor needs to be working correctly for the effective running of the generator. Check if the oil sensor is in excellent condition.

Bottom Line

The above 13 common reasons a generator won’t start are fundamental for all generators. However, some generators differ, and a specific manual is necessary to help you handle the problem.

The final reason why a generator will not start is due to the failure of a significant part, lack of enough oil or gas, and a dead battery. Identify the problem or hire an expert to assist you. Check out Firman generator reviews here which another good one in the industry.

How to start a Generac generator (Step by Step)

The idea of installing a Generac generator at home is especially appropriate if you are focused on protecting or disrupting your work.

However, if the inconvenience persists or does not work, the difference will be negligible.

If your generator has two or three problems, there are some things you can do to fix this.

You need to find a specialist to help you troubleshoot a Generac generator.

Learn more about Generac Parts here.

Choose two or three things to do.

1. Fuel Warranty

The generator may have been used before and was not charged.

Also, fuel may not be available, as leaks may occur depending on the design of the generator.

A mechanical gauge showing the fuel level in the generator may be clogged. This makes the fuel level incorrect.

Some fuel tanks may not start the generator if the fuel level is low. Along these lines, you should regularly check the fuel level and add fuel as needed.

2. Check all electrical groups

Ensure that all wires and visible fuel lines are securely tightened and free of cracks and corrosion.

If there is a problem with the wiring, it is recommended that you contact a specialist to fix it.

Also, make sure the generator and switch are turned on.

If the generator has been running for a long time, this can cause problems that cannot be turned on, and the key may not work fully if the key is not pressed.

This may not be very good, but you will notice problems starting the generator.

Remember that not all problems can be solved. Therefore, you need an expert to help you. Read more about generators’ problems here.

My Generator Won’t Stay Running

A generator can be a great source of peace of mind. Generators mean air conditioning during summer storms, heat during winter blizzards, hot baths and meals, and that you never have to worry about important medical equipment going offline. So what do you do when your generator won’t keep running? Briggs and Stratton Generator Won’t Stay Running

The typical culprits when a Briggs and Stratton generator won’t stay running are the carburetor and the fuel cap. With the carburetor, old fuel can evaporate and leave behind a sticky residue.

This thick, old fuel can clog up the ports and jet and stop the engine from working. If this happens, empty the float bowl of old fuel and use a carburetor cleaner to get rid of the residue.

If cleaning doesn’t work, it might be necessary to replace the carburetor.
The fuel cap might also be the issue with your Briggs and Stratton generator. Vents in the fuel cap allow air into the fuel tank to equalize pressure.

In the event that these vents become clogged, something called a “vapor lock” can occur, which cuts off the flow of gas to the carburetor and stops the engine. Loosening the cap and restarting the engine will allow you to see if this is the issue. If the generator starts and stays on, replacing the fuel cap should effectively solve the problem.

Harbor Freight Generator Won’t Stay Running

A Harbor Freight generator can have the same issues with the carburetor as a Briggs and Stratton model. If old fuel has been left in the tank, follow the same steps.

Empty it out of the float bowl and clean the carburetor with carburetor cleaner. Again, rebuilding or replacing the carburetor is an option if emptying and cleaning don’t fix the problem.

Oil may also be the culprit here. Without oil, a generator cannot function. Take a look at your owner’s manual and verify that you’re using the proper type of oil for your machine.

Change the oil according to the manual. Also, make sure you’re running the generator once a month to help prevent blockages in the carburetor that may prevent your Harbor Freight generator from running properly down the line.

Generac Generator Starts but Won’t Stay Running

A faulty oil pressure sensor can be at fault if your Generac generator starts but won’t stay running. This is a well-known issue with some Generac generators. In this case, the generator falsely senses low oil pressure and then shuts down. To test this, run the generator with the pressure sensor disconnected.

If it runs fine, then replacing the pressure sensor should solve the issue. If this is not the issue, check the fuel cap and carburetor. As with other generators, old fuel can clog the carburetor requiring emptying and cleaning or a full carburetor replacement.

A clogged fuel cap may also be the problem and can be tested by loosening the fuel cap and running the machine. If this is the culprit, then simply replace the fuel cap.

My Champion Generator Won’t Stay Running

Low oil might be an issue if your champion generator won’t stay running. It’s possible levels are low, so checking the levels and adding more oil might solve the problem.

Ensuring the generator is on a level surface free of obstructions is also important. A Champion generator may overheat without proper ventilation, which will then cause it to turn off. Make sure to check the air filter on a regular basis. A faulty Champion generator may need a simple air filter replacement to be good as new.

Loose spark plugs may also be at fault if your Champion generator isn’t functioning as it should. Removing and reseating the spark plug wire may solve this.

If not, inspect the spark plug to see if it needs replacement. If none of these things work and you’ve checked the carburetor and fuel cap, then taking the generator to a certified Champion dealer for maintenance might be the way to go.

Generator Runs for a Few Seconds Then Stops

If your generator runs for a few seconds and then stops, the first thing you should do is check the oil levels. Make sure there’s enough oil in the machine and check it every eight hours during use.

Yet again, a dirty air filter might be the problem. Consult the owner’s manual for your machine and check it. If it’s dirty, you might just need to replace it to have everything running as it should.
Generac Generator Starts Then Dies

Check the oil levels first. If they’re normal, try deactivating the oil pressure sensor and running the machine. If the machine stays running while the sensor is deactivated, then you likely have a faulty oil pressure sensor.

This is a known issue with some Generac models. If this is not the issue, check for common issues like old fuel, dirty air filters, and clogged fuel caps.

Champion Generator Runs Then Shuts Off

A Champion generator that runs then shuts off can be caused by several issues including low oil, a dirty air filter, or loose spark plugs. Check oil levels and consult your owner’s manual about where to locate the air filter. If the filter is dirty, replacing it could fix the issue.

Try removing and reseating the spark plug and seeing if the generator functions as normal. If it does not, examine the spark plug and see if it needs replacing. Also, ensure the generator is on a level surface free of anything that might hinder ventilation. Improper ventilation can cause overheating which leads Champion generators to shut off.

To sum up this section, the carburetor and fuel cap seem to be the most common problems with any generator, so start there if you are having an issue where your generator won’t start or stay running. Oil levels and air filters are also a common source of generator problems.

The important thing is to take your time when troubleshooting and look into all common sources of generator failure. A lot of issues may be a pretty simple fix, and it’s often a lot cheaper to start with repair than with replacing the whole machine.


To sum up, if it happens that your generator won’t start, don’t be panic, just try a few tips that I mentioned in this post, hopefully, it will work. Good luck. Learn about Generac generator is made here.

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Also, the generator’s manuals can help you to solve many of the generators’ problems, you can find some of the best generator brands through this article about the manual.

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