Fix 9 Husqvarna Lawn Mower Problems (Troubleshooting Tables)

by Jack Grover
husqvarna lawnmower issues fix
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You’ve got a Husqvarna mower, a top-quality piece of equipment designed to make your yard work easier.

However, even the best machines can run into issues from time to time. Whether your Husqvarna is refusing to start, frequently dying out, or exhibiting other unusual behavior – don’t worry! You’re not alone, and often, these problems are common and fixable with a few troubleshooting steps.

In this article, we’ll guide you through nine common issues that might be plaguing your Husqvarna lawn mower. From engine troubles to steering difficulties, we have you covered. We’ll provide clear instructions and helpful tables for each issue so you can diagnose and fix the problem by yourself where possible.

Let’s roll up our sleeves and get that mower back in top shape together!

Key Takeaways

  • Husqvarna mowers, like any mechanical equipment, can experience several common issues, such as starting failures, frequent dying out, steering problems, and unusual vibrations.
  • Most of these issues can be traced back to the fuel system or air filtration system. Regularly inspecting and cleaning these systems can help prevent many common problems.
  • Other causes of mower issues could include worn or damaged components, incorrect tire pressures, bad drive belts, or low hydraulic oil levels.
  • For problems related to steering or movement of the mower, checking the tire pressure and inspecting steering components for wear and tear can often resolve the issue.
  • Vibrations in your mower could be due to unbalanced blades, loose bolts or screws, lodged material under the deck, or improper tire inflation.
  • If your mower stops running when it gets hot, check your fuel and engine oil quality and levels, ensure cooling fins are not plugged, check the ignition coil, and clear any blockages in the mower deck.
  • Sputtering mowers might suffer from a lack of air, fuel, or spark. Adjusting ground speed and engine speed, ensuring the deck isn’t plugged with debris, and sharpening dull blades can help resolve this issue.
  • Gas leaks can potentially be hazardous. Regular inspection of the fuel tank, fuel lines, carburetor, gas cap, and engine gasket can help identify and fix leaks promptly.

Husqvarna Mower Doesn’t Start

When your Husqvarna mower doesn’t start, it’s likely due to the engine not getting enough air or fuel, possibly because of a restriction in these systems. This could be caused by issues like a dead battery, loose terminals, a failed safety switch, or even a faulty charging system.

Firstly, check for any restrictions in your mower’s air and fuel systems. You’ll want to inspect and clean the air filter regularly as clogged filters can choke off necessary airflow. Additionally, you should check your carburetor – if it’s dirty or clogged with old gas residue (which can happen when you store your mower without draining out old gasoline), this can obstruct fuel flow.

If these areas appear fine, but your mower still won’t start up properly, then try checking your battery and its connections – ensure they’re tight and corrosion-free. Lastly verify that all safety switches are functioning correctly; these are designed to stop the motor from running under unsafe conditions but may sometimes fail causing starting problems instead.

It might also be worth testing if your charging system is working properly – a simple multimeter test should do the trick here!

Some other issues that might prevent your Husqvarna mower from operating include:

Old GasGas degrades over time, making your fuel less efficient and likely to clog the system.Drain the fuel tank and fill it with fresh fuel.
Broken Spark PlugSpark plug damage; bad connection; gapping issues.Replace it with a new spark plug and keep it gapped the way the manufacturer recommends.
Bad Ignition Switch:The Husqvarna mower will not start if the ignition switch is bad.Replace a bad switch.

Husqvarna Mower Frequently Dies

It’s quite frustrating, isn’t it, when your trusty machine suddenly gives up the ghost mid-mow? Your Husqvarna mower might be dying frequently due to a number of reasons. Again, the most common culprits are usually a clogged fuel system or air filtration system. This could be due to a dirty carburetor, bad fuel, or even a clogged air filter.

As you know, your engine needs an unobstructed flow of clean air and fuel to function optimally, and if either is compromised, it can cause your mower to die.

Don’t forget to also check things that help keep your engine cool, such as making sure there’s no grass packed around the engine and confirming all cooling fins are intact and not damaged.

Keeping these points in mind will see you back behind the wheel of your Husqvarna mower in no time!

Damaged Gas CapA damaged gas cap won’t allow air to pass through it to vent the fuel tank, which forms a vacuum restricting fuel flow.Install a new gas cap.
Engine Oil Level:Having too little or too much oil can damage the crankcase.Keep the oil level at the level recommended by the Husqvarna.
Dirty Cooling FinsDirty cooling fins make it harder for the engine block to cool down.Thoroughly clean the cooling fins.
person mowing green grass filed with a push mower

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Husqvarna Mower Belches Smoke

Seeing a puff of smoke from your trusty grass-cutter can certainly give you a bit of a fright, but don’t panic just yet!

Smoke billowing out of your Husqvarna mower might just be an indication that the engine is burning more fuel than air. This typically happens when the engine is running too rich, which could be due to several reasons, such as clogged air filters.

On the other hand, if smoke continues even after you’ve addressed these issues, it may point toward oil-related problems. Oil leaks, insufficient oil level, or internal engine issues can cause oil to burn off and lead to smoke.

You should check for any possible leaks by inspecting all hoses and seals carefully. If there’s no visible external leak, but your mower still smokes excessively, it’s time to delve deeper into potential internal engine problems like worn piston rings or trouble with the engine gasket.

Cause of ProblemWhy Does This Happen?Solution
Issues with the piston ring, valve train, or engine gasketAll parts degrade and sufficiently worn components can have a detrimental effect on your mower in the long run.Service your Husqvarna mower in a trusted repair shop.

Husqvarna Mower Has Steering Issues

Now, let’s shift gears and talk about steering issues that can throw a wrench in your mowing routine. If your Husqvarna mower is veering off to the left or right, it may be due to incorrect tire pressures or worn steering components.

These problems aren’t just annoying; they’re also unsafe and can significantly disrupt your mowing pattern. So, first things first, check the pressure in all of your tires using an accurate tire pressure gauge. They should all be inflated to the manufacturer’s recommended PSI (Pounds per Square Inch). Too much or too little air can affect how straight you’re able to steer.

If adjusting the tire pressure doesn’t resolve the issue, then it’s time to inspect the mower’s steering components for wear and tear. Check parts like tie rods, spindles, bushings, and gears for any signs of excessive wear or damage that might be causing erratic steering behavior.

If you find any problematic components during your inspection, replace them immediately with high-quality replacements meant for your specific model of Husqvarna lawn mower.

Also, remember to check on tracking adjustments if you have a zero-turn mower, as improper settings could lead it to veer off the path when moving forward.

Husqvarna Mower Can’t Move Forward or Backwards

Imagine you’re all set to tackle that unruly grass, but your mower refuses to budge – neither forward nor backward. The issue could be due to a bad drive belt or even a worn tensioner pulley.

It’s also possible that the hydraulic oil level in your mower is low. Many Husqvarna mowers have sealed hydraulic systems, which means you can’t service them yourself. If this is the case with your mower and it is refusing to move, take it to the nearest Husqvarna dealership for servicing.

Some of the other issues that may prevent your Husqvarna mower from moving are:

Missing key in the axleCertain Husqvarna mowers have a small key in the axle that may have fallen outInstall a new key in the axle.
Broken idler arm spring:When the idler arm spring is damaged, it can no longer place tension on the drive belt.Install a new spring.
Hot hydraulic fluidHot hydraulic fluid may indicate damage to your hydrostatic transmission system.Let your hydraulic oil cool. If the problem persists, contact your nearest Husqvarna dealership.

Husqvarna Mower Vibrates

Feeling your trusty grass cutter shake, rattle, and roll beneath you can be both alarming and frustrating. Your Husqvarna mower should provide a smooth operation; any unusual vibrations are typically signs of trouble.

There could be various reasons for such occurrences – broken parts, debris, or material wrapped around the spindles could all contribute to this unsettling issue.

Because of that, it’s crucial to inspect your mower carefully, as even the smallest overlooked detail can lead to significant vibrations.

  • Firstly, ensure the blades are balanced properly and free from damage. Bent or unbalanced blades cause most vibration problems.
  • Next, check for any loose bolts or screws that may be causing unnecessary movement in parts of your machine.
  • Additionally, examine underneath the deck for lodged material, as accumulated grass clippings can throw off balance and induce shaking.
  • Lastly, look at your tires’ condition and pressure – uneven wear or improper inflation can also cause vibrations.

Remember that regular maintenance is key to preventing these issues in the future; however, if you’ve performed these checks and are still experiencing problems, it might be time to seek professional help.

Husqvarna Mower Stops Running When Hot

Ever found yourself in a bind when your trusty grass cutter decides to take an unexpected break just as it’s getting warmed up? This issue can be incredibly frustrating, especially if you’re halfway through trimming your lawn.

The problem could be due to several reasons, such as fuel-related issues, the wrong or inappropriate amount of engine oil, plugged cooling fins, a faulty ignition coil, or even a clogged mower deck.

  • Firstly, check your fuel. Poor quality or stale fuel can cause problems with your mower running hot and then stopping. If this is the case, drain the old fuel out and replace it with fresh fuel.
  • Next, inspect your engine oil. Using the wrong type or amount of engine oil could lead to overheating and subsequent stalling of the mower once it gets hot. Make sure you’re using the correct engine oil for your specific Husqvarna model and that it’s at its proper level according to the manufacturer’s guidelines.
  • Plugged cooling fins might also be causing this issue. Ensure they’re clean and free from debris so that air can circulate properly around them to cool down the engine effectively when operating at high-temperature levels.
  • A bad ignition coil can get overly hot over time, which may result in intermittent spark leading to shutdowns when hot. Hence, consider replacing it if found defective after testing with a multimeter under heated conditions.
  • Lastly, examine for any blockages in the mower deck, which might be causing difficulty in ventilation, thus provoking excessive heat buildup, leading to automatic shutting down once hot. Clear out any trapped grass clippings or dirt within its enclosure.

Husqvarna Mower Experiences Sputtering

The sputtering of your mower can be as frustrating as it is perplexing, disrupting what should be a smooth and efficient mowing process. But don’t worry, there are ways to troubleshoot this, too.

Sputtering usually indicates either a lack of air, fuel or spark in your mower’s engine. If your Husqvarna lawn mower sputters while you’re using it, try adjusting the ground speed and engine speed. Overworking the engine can cause it to run rough. Also, make sure that the deck isn’t plugged with grass clippings or other debris. This can impede airflow and cause sputtering.

Lastly, check your lawn mower blades. If they’re dull, they can strain the engine, leading to erratic performance.

By carefully examining these elements and applying necessary adjustments or cleanings where needed, you’ll likely resolve any sputtering issues you’re experiencing with your Husqvarna lawn mower.

small lawn mowing work using a push mower

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Husqvarna Mower Leaks Gas

It’s a heart-sinking moment when you discover your trusty mower is leaking gas, threatening not only performance but also safety. The fuel puddles might have evaporated before you noticed them, leaving behind only the pungent smell of gasoline as a telltale sign.

You’ll need to meticulously inspect your machine to locate the source of the leak. Start by following your fuel lines from the tank and check each component that constitutes your fuel system. Here are some key areas to scrutinize:

  • Fuel Tank: Inspect for any visible cracks or holes that may be causing leakage.
  • Fuel Lines: Look for any signs of wear, tear, or corrosion along these pipes.
  • Carburetor: This could be flooded due to a stuck float; in this case, it might require cleaning or replacement.
  • Gas Cap: A loose or damaged cap can cause gas to leak out.
  • Engine Gasket: If this seal is broken, it can result in a gas leak.

Remember, identifying and fixing a gas leak promptly will not just ensure better mower performance but also keep potential fire hazards at bay.


And there you have it – a comprehensive guide to nine common problems you might encounter with your Husqvarna lawn mower. We’ve explored everything from starting troubles to gas leaks, and hopefully, you now feel more confident about diagnosing and fixing these issues yourself.

Remember, while DIY fixes can solve many of these problems, don’t hesitate to seek professional help when necessary. Sometimes, the issue may be complex or require specialized tools for repair. In such cases, taking your mower to an authorized Husqvarna service center is the best course of action.

At the end of the day, regular maintenance is key to preventing most of these issues. So, keep your mower clean, replace old parts as necessary, and ensure that it’s always ready to tackle that unruly grass! Happy mowing!

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