Why is my blackstone griddle flame low?

Are you a grilling enthusiast who loves cooking outdoors on your Blackstone griddle? There’s nothing quite like the taste of perfectly seared steak or crispy bacon cooked on an open flame. But what happens when your flame is low, and your food isn’t cooking as it should be? Don’t worry; we’ve got you covered.

As someone who has encountered this issue many times, I understand how frustrating it can be to deal with a low flame on your Blackstone griddle. It can lead to uneven cooking, prolonged cooking times, and even ruin the taste of your food. That’s why I’ve put together this blog post to help you troubleshoot and fix the problem quickly.

In this post, we’ll explore common causes of a low flame on your Blackstone griddle, from clogged burner holes to issues with the propane tank. We’ll provide step-by-step instructions for fixing each problem so that you can get back to enjoying delicious outdoor meals in no time.

So if you’re wondering why your Blackstone griddle flame is low, keep reading. We’ll show you how to diagnose and solve the issue so that you can cook up a storm with confidence.


What is a Blackstone Griddle?

The Blackstone Griddle is the perfect outdoor cooking appliance for your next backyard barbecue or family gathering. This popular flat top cooking surface is fueled by propane gas, providing even heat distribution and a large cooking area.

Introduced in 2005 by the Utah-based Blackstone Company, the Blackstone Griddle has become increasingly popular among outdoor cooking enthusiasts due to its versatility and ease of use. Made from high-quality materials like stainless steel and cast iron, this griddle can withstand high temperatures required for cooking, making it long-lasting and durable.

One of the main advantages of the Blackstone Griddle is its large cooking surface, which allows you to cook multiple items at once. From hamburgers to hot dogs, vegetables, and more, this griddle can handle it all with ease. Plus, with its built-in grease management system, you’ll have fewer flare-ups and a cleaner cooking surface.

However, if you encounter low flames on your Blackstone Griddle, there are a few reasons why it could be happening. Clogged burner tubes or venturi, faulty regulators, low gas pressure, or damaged burners can all cause low flames. To solve these issues, turn off the gas supply and clean out any debris from the tubes and venturi. Check that your regulator is securely attached to both the tank and griddle without any leaks. Ensure that your propane tank is full and that the gas valve is fully open. If none of these solutions work, it may be time to replace your burners.

Reasons for Low Flame on a Blackstone Griddle

It’s frustrating wanting to cook your favorite foods quickly and efficiently, only to find that they’re not cooking at all. But don’t worry – there are several reasons why you may be experiencing a low flame, and we’ve got the solutions for you.

Faulty Regulator:

Another possible cause of a low flame is a faulty regulator. The regulator controls the flow of gas from the propane tank to the griddle burners. If it’s not working correctly, it can lead to weak flames or no flames at all. To check if this is the issue, turn off your griddle and disconnect the propane tank. Then, reconnect the tank and turn on the griddle. If the flame remains low, you may need to replace the regulator.

Low Gas Pressure:

Low gas pressure is another common culprit of a weak flame. This can be caused by a partially closed propane tank valve or a damaged hose. Checking to make sure your propane tank valve is fully open and that there are no kinks or cracks in your hose can make all the difference when it comes to cooking your favorite meals.

Loose Connections:

It’s essential to make sure that your griddle is properly assembled and connected. A loose connection between the propane tank and the griddle can cause a drop in gas pressure and result in low flames. Double-check all connections and make sure they’re tight and secure before starting to cook.

Low Outdoor Temperatures:

Lastly, low outdoor temperatures can also affect the flame output of your Blackstone Griddle. Propane gas isn’t as efficient in colder temperatures, so if you’re using your griddle in cold weather, it may take longer to heat up and reach its maximum flame output.

Clogged Burner Tube or Venturi

Imagine this: you’re ready to whip up a scrumptious meal on your Blackstone griddle, but instead of a strong flame, you’re met with a weak one. That’s a bummer, but don’t let a clogged burner tube or venturi ruin your cooking game. As an expert on this issue, I’m here to help you diagnose and prevent this common problem.

Let’s start by breaking down what the burner tube and venturi do. The burner tube delivers gas to the burners, while the venturi regulates the amount of air that mixes with the gas. When debris or grease builds up in these components, it restricts the flow of gas and air, resulting in a low flame.

To diagnose this issue, turn off your griddle and disconnect the propane tank. Then, remove the griddle top and inspect the burner tubes and venturi for any obstructions. If you notice any blockages, use a wire brush or pipe cleaner to remove them. Make sure to clean both ends of the tubes and check for any cracks or damage that may be causing the issue.

In addition to diagnosing this issue, let’s also talk about how to prevent it from happening altogether. Regular maintenance and cleaning of your Blackstone griddle is key. After each use, clean the griddle top and inspect the burner tubes and venturi periodically for any debris buildup. Using high-quality propane and keeping the propane tank in good condition can also help prevent clogs from occurring.

Faulty Regulator

Regulators are responsible for controlling the gas flow from the propane tank to the burners on your griddle. When they malfunction, they can restrict gas flow and cause a weak flame. This can lead to subpar cooking results that nobody wants.

So, how do you know if your regulator is at fault? Keep an eye out for consistent low flames and hissing sounds when you turn on the gas supply. If you suspect something is wrong, perform a simple test by disconnecting and reconnecting the propane tank. If the flame remains low, it’s time to replace that faulty regulator.

Before you rush out to buy a replacement regulator, let’s talk about prevention. Regular maintenance and inspections are key in avoiding a faulty regulator. Be sure to check those hoses and connections for any wear or damage and replace them if necessary. Additionally, it’s best to replace your regulator every 5-7 years as part of routine maintenance.

Low Gas Pressure

Calling all grill masters. Are you experiencing a lackluster flame on your Blackstone griddle? Fear not, as we have the scoop on how to troubleshoot the problem. One possible reason for low flames is due to low gas pressure caused by a malfunctioning propane tank or regulator.

Propane tanks have a pressure relief valve that can open if the pressure inside the tank becomes too high. This can occur if the tank is overfilled or exposed to high temperatures resulting in a drop in pressure. Similarly, a regulator controls the flow of gas from the tank to the griddle and if it is clogged with debris or damaged, it may not allow enough gas to pass through, resulting in a weak flame.

To check for low gas pressure, start by turning off the griddle and disconnecting it from the propane tank. Inspect the tank for any signs of damage or leaks, and ensure it is not overfilled. Then, check the regulator for any visible damage or debris. If everything appears to be in good condition, try resetting the pressure relief valve on the propane tank by turning it off and then back on again.

If these steps do not solve the issue, replacing either the propane tank or regulator may be necessary. However, keep in mind that some Blackstone griddles come with their own built-in regulator, so it’s vital to check the owner’s manual before making any replacements.

Damaged Burners

Attention all grill masters. Are you noticing a lack of sizzle on your Blackstone griddle? Fear not, as we have found another potential culprit for a weak flame: damaged burners.

Burners can sustain damage over time due to regular use, excessive heat, or environmental factors. This damage can lead to an inconsistent flame or difficulty maintaining heat. Here are some specific causes and solutions for damaged burners:

  • Clogging: One common issue with damaged burners is clogging caused by food debris or grease buildup. These blockages can result in a low flame, leaving you with a subpar cooking experience. To avoid this issue, ensure that your burners are regularly cleaned and that any debris or buildup is removed.
  • Rust or corrosion: Another potential issue with damaged burners is rust or corrosion. Rust can weaken the metal of the burners and cause holes or cracks, which can affect gas flow and result in a low flame. Prevent rust from forming by keeping your griddle clean and dry, and storing it in a dry location when not in use.
  • Wear and tear: Over time, burners may simply wear out and need to be replaced. If you have tried cleaning and maintaining your burners but still experience a low flame, it may be time to replace them. Blackstone offers replacement parts for their griddles, including burners, so you can easily find the right parts and get your griddle back up and running at full capacity.

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Troubleshooting and Fixing the Issue

Calling all grill masters. There’s nothing quite like the disappointment of firing up your Blackstone griddle, only to find that the flames just aren’t up to par. But fear not, because with a little troubleshooting and some basic tools, you can get your griddle back in top shape in no time.

Let’s start with the basics: check your propane tank. It may seem like a no-brainer, but sometimes the solution is as simple as making sure your tank isn’t empty or running low on fuel. If it is, swap it out for a full one and see if that solves the issue.

If your tank is full but you’re still experiencing low flames, it’s time to delve a little deeper into your burner. A clogged burner is often the culprit for low flames, but don’t panic – you can fix this. Start by turning off the gas supply and disconnecting the propane tank. Remove the griddle top and locate the burner. Use a wire brush or toothbrush to scrub away any debris or rust that may be blocking the burner holes. Once you’ve given it a thorough cleaning, reconnect the propane tank and turn on the gas supply.

If cleaning your burner doesn’t do the trick, don’t worry – you can easily replace it. Replacement burners are widely available online or at your local hardware store. To replace the burner, first turn off the gas supply and disconnect the propane tank. Unscrew the old burner from the griddle base and install the new one by screwing it onto the griddle base, then reconnect your propane tank.

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Last but not least, a malfunctioning regulator could also be causing low flames on your Blackstone griddle. The regulator controls gas flow from the propane tank to the burner, so if it’s not working properly, it can cause low flames or even prevent your griddle from igniting at all. To determine if this is the issue, turn off the gas supply and disconnect the propane tank. Take a close look at your regulator and check for any signs of damage or wear. If you spot any issues, replace the regulator with a new one.

Cleaning the Burner Tube or Venturi

Imagine this: You’re ready to sizzle up a feast on your Blackstone griddle, but the flame is low, and things aren’t heating up as they should. Disappointing, right? But fear not. A likely culprit for this issue is clogged burner tubes or venturi. So let’s dive into why it’s crucial to regularly clean these parts.

Technically speaking, the burner tube and venturi work in tandem to supply gas to the burners and mix air with gas before it enters the burner tube. Grease or debris accumulation can impede the flow of gas, leading to a low flame or even preventing the burner from igniting altogether. Not the kind of grill experience we want.

So, how do you clean these critical components? It’s a breeze. When cleaning the burner tube, start by removing the cooking surface and locating the tubes. Use a wire brush or a solution of warm soapy water to clean them thoroughly and remove any grease buildup or debris inside.

The venturi is a small pipe that links the burner tube to the control valve and mixes air with gas before it enters the burner tube. To clean it, turn off the gas supply and disconnect it from the control valve. Use a wire brush or warm soapy water to clean it thoroughly, checking for any blockages or debris inside before reconnecting it.

Now that you know how to clean them let’s discuss why it’s essential to do so regularly. Cleaning these components every six months or as needed will help maintain a consistent flame on your Blackstone griddle, ensuring optimal performance and an enjoyable grilling experience every time you cook up a storm.

Checking the Regulator

Before you panic and order takeout, let’s check the regulator.

The regulator is the unsung hero of your griddle’s performance. It manages the flow of gas from the propane tank to the burners, ensuring a consistent and powerful flame. However, if it’s not functioning properly, it can cause all sorts of problems, including low flame or no flame at all.

Fortunately, checking the regulator is a straightforward process that can save you time, money, and frustration. Here are the steps to follow:

  • Step 1: Turn off the propane tank and disconnect it from the griddle.
  • Step 2: Inspect the regulator and hose for any signs of damage or wear. Look for cracks, dents, or leaks in the hose and make sure all connections are secure.
  • Step 3: With the propane tank turned on, listen for any hissing sounds. If you hear a hissing sound, it could indicate a leak in the system. Turn off the propane tank immediately and fix any leaks before proceeding.
  • Step 4: Once you have ensured that there are no leaks, turn on the griddle and observe the flame.
  • Step 5: If the flame is still low, try adjusting the regulator. Some regulators have an adjustment knob that you can turn to increase or decrease gas flow to the burners.
  • Step 6: If adjusting the regulator doesn’t solve the problem, it may be time to replace it entirely.

It’s important to note that replacing a faulty regulator should be done with professional assistance. Contact Blackstone customer service or a licensed technician for guidance on finding and installing a new regulator.

Ensuring Adequate Gas Pressure

While it’s easy to blame external factors like the weather or an empty propane tank, the real culprit might be inadequate gas pressure. Luckily, ensuring adequate gas pressure is a straightforward task that any grilling pro can handle with a little bit of know-how.

The first step in ensuring adequate gas pressure is to check your propane tank. While it might seem like an obvious starting point, many people forget to do this simple task before firing up the grill. If your propane tank is empty or nearly empty, replace it with a full one to ensure that you have the necessary fuel to keep your griddle running smoothly.

Another possible cause of low gas pressure is a clogged regulator. The regulator plays a vital role in regulating the flow of gas from the propane tank to the burners. Over time, it can become clogged with debris and other contaminants, which can restrict the flow of gas and result in a low flame. To clean the regulator, turn off the propane tank and disconnect the hose from the regulator. Then, using a soft-bristled brush or toothbrush, gently clean the surface of the regulator and remove any dirt or debris that may be present.

In addition to checking your propane tank and regulator, it’s also critical to ensure that your gas lines are properly connected and free from leaks. A leak in the gas line not only results in a low flame but also poses a significant safety hazard. To check for leaks, create a solution of soapy water and apply it to all connections and hoses. If there is a leak present, bubbles will appear in the solution. In this case, turn off the propane tank and tighten all connections until there are no more bubbles present.

Replacing Damaged Burners

The culprit could be damaged or clogged burners. Don’t worry, though, replacing them is an easy process that you can do yourself.

To begin, ensure that the propane tank is turned off, and disconnect the hose from the regulator for safety purposes. Next, remove the griddle top and locate the burner assembly. Depending on your Blackstone griddle model, there may be one or multiple burner assemblies.

Once you’ve identified the burner assembly, it’s time to remove it from the griddle. This involves unscrewing any bolts or screws holding it in place and carefully disconnecting any gas lines or wires connected to the burner assembly.

Now comes the exciting part – installing the new burner assembly. Start by reconnecting any gas lines or wires and screwing it back into place on the griddle. Ensure that all connections are tight and secure before turning on the propane tank and testing the flame.

Maintaining and replacing damaged parts is crucial for safe and efficient grilling. If you’re unsure about how to replace damaged burners on your Blackstone griddle, consult the manufacturer’s instructions or seek professional assistance.


If you’re experiencing a low flame on your Blackstone griddle, there are several potential causes to consider.

From clogged burners to low gas pressure or even faulty regulators, troubleshooting the issue can be frustrating. However, with some patience and persistence, you can get your griddle back up and running at optimal performance.

Remember to always prioritize safety when working with gas appliances and consult the manufacturer’s instructions for specific guidance.

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