Generac pressure washer won’t start

Generac pressure washer won’t start. A pressure washer is an essential household tool. They are used to clean many different things, like your patio or even house.

Pressure washers can also help you get ready for painting by removing so much dirt and old paint from any surface.

Although the Generac pressure washer you have will usually work well, on rare occasions it may stop working. If this does happen, don’t worry; there is a way to fix it!

Generac pressure washer won’t startpressure washer won't start

The most common issues for Generac pressure washers won’t start are that the unloaders are usually something inconvenient like a cracked o-ring or even dirt caught in the spring. Sometimes a shaft can get stuck, and other times there’s simply nothing wrong at all.

Here we will discuss all the problems and their solutions.

Dirty Carburetor

There might be a blockage in the fuel line. Fuel lines, especially plastic ones, are prone to disintegrating after repeated exposure to water and detergents.

Over time, these disintegrated particles could get into the carburetor and cause a clog. If this is the problem, then there isn’t much you can do immediately other than replace the entire fuel line with one made from more durable material like stainless steel.

However, if it is determined that the problem isn’t due to a clogged fuel line, but rather a clogged carburetor (or improperly assembled one).

Flywheel Key Problem

the flywheel key on a pressure washer has come off. The flywheel key is used to lock or unlock the pressure washer’s crankshaft. It fits into the crankshaft and when turned, unlocks the flywheel for removal and also screws onto the back of the engine crankcase so it does not get lost.

If your engine stops suddenly when you are using it, this is often because one side of the flywheel key broke off and became lodged in between the crankshaft and inside of engine housing.

To determine if your flywheel key is broken, remove the flywheel from your pressure washer’s engine housing, inspect it, and make sure that both sides of it remain intact. If one side or both sides of your flywheel key have been broken off, buy a new replacement before installing your new part!

Defective Spark Plug

Inspect the spark plug for signs of wear or damage. If there is moisture buildup in your pressure washer, this will cause corrosion to have a darker appearance because of sulfidation and could also result in a faded appearance of the electrodes.

If an electrode is burnt away or the porcelain insulator is cracked, you may need to replace that spark plug. You should see light carbon buildup on the electrodes if it’s working properly but if there is heavy buildup it would indicate that your spark plugs are not firing correctly, indicating that you need to replace them.

Faulty Ignition Coil

Ignition coils pass current to the spark plugs while the engine is running. If an ignition coil is defective, the engine may not start. Ensure that the spark plugs are tested prior to replacing an ignition coil as faulty spark plugs will cause similar symptoms.

If a valid spark has been confirmed, test the working ignition coil with an ignition coil tester before replacing it and then proceed with replacement as necessary.


What happens if you don’t have water for a pressure washer?

Despite the fact that you can start a pressure washer without water, it is not recommended as it will quickly wear out the pump. There are essentially two main parts that operate on the water the pump and the motor.

If either of these parts get jammed or move too fast, there is a chance for serious mechanical damage to occur.

Also, push washers essentially shoot out pressurized water that helps dilute the detergent entering the pump and keeps it cool through the cycle of operations (i.e., spin, mix, repeat).

Why does my Generac pressure washer have no pressure?

Generac Pressure washer has no pressure. The pump assembly may need to be rebuilt or replaced. If you are using this frequently, then it’s time for you to change the pump which is more than a few years old.

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