When & how to replace a generator’s air filter

Your generator is your go-to when the lights go out, keeping your place humming along during those annoying power outages. But to make sure it doesn’t let you down when you need it most, a bit of regular upkeep is key. One part folks often forget about is the air filter. Knowing when and how to swap out your generator’s air filter can keep it running longer, make it work better, and save you from pricey fixes later on.

Heads up!The tips here might not fit your exact generator model. We try to dish out handy advice for all sorts of DIY fixes, but different models can have their quirks. So, you might see some differences in steps, error codes, parts, and so on. For spot-on guidance, it’s best to check your generator’s manual or feel free to give us a shout if you’ve got questions.

How to tell if your generator’s air filter needs swapping

Keeping the air filter clean is super important for your generator to run smoothly. Over time, dust and gunk build up, messing with the airflow and engine performance. Here’s how you can spot when it’s time for a new one:

Too much dust and dirt

If your air filter’s covered in dust and grime, even after you’ve tried cleaning it, it’s probably not doing its job anymore. A clogged filter chokes off the airflow, making the engine work overtime and possibly overheat.

Obvious wear and tear

Take a good look at the filter. If you see any rips, holes, or it’s bent out of shape, that’s bad news. Damages like that let dirty air sneak into the engine, which can mess it up on the inside.

Losing power or efficiency

If your generator’s guzzling more fuel, hard to start, or not giving out the juice it used to, the air filter might be clogged or damaged. A dirty filter throws off the air-fuel mix the engine needs to run right, causing it to perform poorly.

When should you change the air filter?

Sticking to a maintenance routine can nip problems in the bud and keep your generator running longer. Here are some pointers on when to swap out that air filter:

Check it regularly, depending on use

It’s a good idea to peek at the air filter now and then, especially considering how much you use your generator and what the manufacturer suggests. Regular checks help you spot issues early and keep things running smooth.

Stick to what the manual says

Make sure to follow the tips laid out in your generator’s manual. The folks who made it know best, and they usually have a maintenance schedule just for your model. Plus, it helps you stay on the good side of the warranty.

Think about where you’re using it

If you’re running your generator in dusty spots, like construction areas or places with bad air, the filter’s gonna get dirty faster. In these cases, it’s smart to check and change the air filter more often so you don’t wreck the engine.

How to swap out your generator’s air filter

Changing the air filter is pretty simple, and you can tackle it yourself with just a few tools. Follow these steps to get it done right and stay safe while you’re at it.

Get ready

Before diving in, make sure you’ve got these tools and bits at hand:

• • A new air filter that fits your generator

• • Screwdriver or wrench (if your model needs it)

• • Clean rags

• • Some safety gear like gloves and goggles

Double-check you’ve got the right replacement part. If you’re not sure where to find your generator’s model number to snag the correct air filter, swing by our guide on how to find your appliance’s model number.

Safety first

• • Shut off the generator: Make sure it’s off and cooled down so you don’t get hurt.

• • Unplug the spark plug: Just to be extra safe, disconnect the spark plug wire so it can’t start up by accident.

• • Find a clean workspace: Do the swap in a clean, dry spot to keep dirt out of the engine.

Step-by-step guide

Step 1: Take off the housing cover

Find where the air filter lives on your generator. It’s usually in a plastic or metal box on the side of the engine, could be rectangle or cylinder-shaped. It might be held on with latches, screws, or knobs. Grab the right tool and carefully pop off the cover.

Quick tip

Keep any screws or small bits in a container so they don’t wander off.

Step 2: Remove the air filter

Carefully pull out the air filter from its spot. Try not to let any dirt or junk fall into the air intake. If there’s a pre-filter or second filter, take that out too.

Different kinds of air filters

• • Foam filters: You can usually wash and reuse these, but they wear out eventually.

• • Paper filters: These are disposable, so swap them for a new one instead of cleaning.

• • Dual-element filters: These have a foam pre-filter and a paper filter together for better filtering.

Step 3: Check out the filter

Take a good look at the filter under some bright light. You’re looking for:

• • Lots of dirt and grime: If it’s covered in muck, it’s blocking airflow and needs replacing.

• • Damage: Any rips, holes, or bending means the filter’s shot.

• • Oil buildup: A filter soaked in oil can grab more dirt and should be swapped out.

If it looks pretty clean and undamaged, and it’s a foam filter, you might be able to clean it instead.

Step 4: Put in the new filter

Grab your new air filter and pop it into the housing. Make sure it’s seated right and seals properly around the edges so no unfiltered air sneaks past.

Prepping a foam filter

If you’re using a foam filter, you might need to oil it lightly to catch fine particles better. Always check what your manual says, since some foam filters are meant to be used dry.

1. 1. Add a little clean engine oil to the filter if needed.

1. 1. Squeeze out any extra oil so it’s not too soaked.

1. 1. Make sure it’s got an even coating but isn’t dripping.

Step 5: Put the cover back on

Securely fasten the air filter housing cover. Make sure all latches click, or screws are tightened up. This keeps dirt out and the filter snug while it’s running.

Don’t forget other parts

If there are hoses, grates, or other bits connected to the air filter housing, hook them back up as the manual says.

Step 6: Hook up the spark plug again

When you’ve got everything back together, reconnect the spark plug wire. Your generator’s good to go now.

Extra tips for keeping your air filter in top shape

Taking care of your generator’s air filter regularly boosts performance and helps your gear last longer.

Try cleaning before replacing (if you can)

For foam filters:

• • Wash with mild soap: Gently clean the filter in warm soapy water.

• • Rinse well: Make sure all the soap’s gone.

• • Let it dry fully: Allow the filter to air dry completely before oiling it and putting it back in.

Look at your manual

Always peek at your generator’s manual for specific tips on taking care of the air filter. Different models might have special needs or suggested cleaners.

Keep on a regular schedule

Set up reminders to check and change the air filter according to what the manufacturer recommends and how much you use the generator. Keeping a maintenance log can help you stay on top of things.

Use real parts

Stick with OEM (Original Equipment Manufacturer) parts to make sure everything fits and works right. Knock-off parts might not fit properly or filter as well.

You can find top-notch replacement air filters and more at AppliancePartsPros.com.

Keep your generator in tip-top shape

Changing your generator’s air filter regularly is key for it to run efficiently and last longer. A clean filter keeps things running smoothly, gives steady power, and helps you save on fuel. By following these steps, you can easily handle this simple maintenance job yourself.

If you’re not sure about something or need a hand, don’t hesitate to look at your generator’s manual or get in touch with our friendly team.

Remember, taking care of your appliances doesn’t have to be a headache. For genuine parts, expert help, and loads of repair tips, check out AppliancePartsPros.com.Be part of our community and keep up with our latest tips and deals by following us on Facebook and Twitter.

If you’ve got any questions or need more help, please reach out to us. We’re here for you!