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Solving the Mystery: Why Is My Gas Grill Not Getting Hot

Are you wondering why your gas grill’s not getting hot enough after serving another round of undercooked burgers to your family and friends at your latest backyard barbecue?

The struggle is real!

It’s super frustrating when you’re all set to fire up the grill for a big event and it just refuses to cooperate. But don’t fret, my grilling friends, this issue is more common than you think, and, more importantly, it’s pretty easy to fix.

There are a few reasons why your trusty gas grill might not be heating up like it used to. From clogged burners to a finicky ignition system, we’re about to dive into all the potential culprits and walk you through the gas grills troubleshooting  process.

Trust me, as a long-time pitmaster and BBQ blogger with years of experience, I’ve seen it all when it comes to grill problems. But no need to worry, you’ll be grilling up a storm in no time with the info you’ll gain from this article.

So, whether you’re a seasoned griller or just starting out, grab a cold beverage and stick around. We’ll cover the most common causes of a gas grill not heating up, and provide you with easy-to-follow instructions to get it back to sizzling.

No more bland burgers in your future, so let’s fire up the grill!

Clogged Burners

One of the most common reasons why your gas grill may not be getting hot is clogged burners. As time goes on, bits of food and grease can build up inside the burners, hindering the flow of gas and leading to subpar heat performance.

To see if this is the case for you, simply remove the grates and take a look at the burners. If you spot any signs of blockage, grab a brush or pipe cleaner and get to work removing the buildup.

However, if the clogs are particularly stubborn or the burners are severely clogged, you may need to replace them. Don’t let this task intimidate you, as it can be done with just a screwdriver and a replacement burner.

To avoid clogs like these in the future, regularly clean your burners by brushing them monthly or regularly clean your burners by brushing them monthly or by using a specialized burner and grate cleaner.

By following these simple steps, you’ll have your grill firing on all cylinders in no time, ready to cook up a mouthwatering feast for your friends and family.

Malfunctioning Ignition System

Another common reason for your gas grill’s inability to heat up could be due to a faulty ignition system, which is in charge of lighting the burners.

Try manually lighting the grill with a long match or lighter to troubleshoot. If it ignites but won’t stay lit, that’s a sign the ignition system might be the problem.

The cause of an ignition system malfunction could range from a weak battery to a clogged burner, to a spark plug that’s not working. Depending on the issue, you may have to replace the battery, spark plug, or burner to fix it.

If you’re unsure how to tackle the problem, it’s best to consult the grill manual or call a professional for assistance.

Remember, a malfunctioning ignition system can be a frustrating problem, but with proper diagnosis and repair, you’ll be grilling up a storm in no time.

Leakage in the Gas Line

Check for a Gas Leak Using Soapy Water | Possible Gas Leak Causes |

A gas leak in the gas line can also be a culprit for your gas grill’s lack of heat. The gas line, which transports gas from the propane tank or natural gas line to the burners, is crucial for proper heating. If there’s a leak, your grill won’t receive enough gas to ignite.

To ensure your grill is functioning optimally, it’s wise to give it a thorough check for leaks at least annually, especially right after taking it out of storage after the colder months.

Check for a Gas Leak Using Soapy Water

A simple solution of soapy water can help you detect gas leaks in your grill.

To do so, follow these steps:

  • Inspect the hose for any damage or wear.
  • Turn off the knobs controlling the burners.
  • Mix soap and water in a spray bottle and apply it to all connections, valves, and the regulator along the gas line, including the hose.
  • Turn the gas tank valve back on.
  • If there’s a leak, bubbles will form at the point of the leak.

If you detect a leak, turn off the gas supply to the grill immediately.

Hot Safety Tip: Do not use the grill until the leak is fixed by a professional. Gas leaks pose a serious threat and should not be ignored.

Possible Gas Leak Causes

Leakage in the gas line can be caused by a number of issues.

Issues such as:

  • Loose connections
  • Damaged valves
  • Worn-out hoses

It is important to identify and fix the cause of the leak to ensure the safety and proper functioning of your gas grill. With the right diagnosis and repair, you can get your grill back to working properly and start enjoying mouthwatering barbecue again.

Check Your Gas Grill’s Regulator

Resetting Your Gas Grills Regulator

One possible reason for your gas grill not getting hot enough could be an issue with the regulator. The regulator is responsible for controlling the flow of gas from the propane tank to the burners. If it is not working properly, it can affect the overall performance of your grill.

Signs of a faulty regulator

  • Flame is too low or too high
  • Grill won’t light
  • Grill heats unevenly
  • Hissing or leaking gas
  • Flame flickers or goes out frequently
  • Burners turn off unexpectedly
  • Difficulty adjusting flame or temperature
  • Burners won’t stay lit
  • Grill won’t reach the desired temperature
  • Sudden drop in pressure or flow of gas

To troubleshoot a potential regulator issue, first, check for any visible signs of damage or leaks. If you find any, it is best to replace the regulator as it cannot be repaired. If there are no visible signs of damage, try resetting the regulator to see if that resolves the problem.

Resetting Your Gas Grills Regulator

Resetting your gas grill’s regulator might seem like a scary task, but trust us, it’s a straightforward procedure that’s crucial for your safety.

Follow the steps below to help you reset your grill regulator with confidence.

  • Disconnect the Gas Supply: Begin by opening the grill lid, turning off all burners, then turning the knob on the propane tank to the off position, and finally disconnecting the propane tank.
  • Identifying the Regulator: The regulator is a small round device attached to the hose that connects the propane tank to the grill.
  • Disconnect the Regulator: Once you’ve found the regulator, use a flathead screwdriver to adjust it and disconnect it from the propane tank.
  • Time to Wait: Give it a full 60 seconds, and then reconnect the regulator to the propane tank.
  • Resuming Gas Flow: Slowly turn on the propane tank knob to resume gas flow until it is fully open.
  • Relight the Grill: After waiting for another 60 seconds, light your grill as you normally would.

Please keep in mind that resetting the regulator might not resolve all the issues with your gas grill. If you’re experiencing problems you can’t fix by resetting the regulator, it’s advisable to call a professional for assistance. A malfunctioning regulator can be dangerous and must be handled with caution by an expert.

Incorrect Thermometer Readings

Damaged Thermometer | Incorrect Thermometer Installation | The Thermometer Needs Re-Calibration

Grilling is all about cooking up the perfect meal. But, when you’re working with an inaccurate thermometer, it can be a recipe for disaster. No one wants to end up with under or over-cooked food, right?

So, let’s dive into what causes those incorrect thermometer readings and how to fix them.

Damaged Thermometer

First things first, if your thermometer is damaged, it’s not going to be giving you accurate readings. Check it over for cracks, dents, or any other physical deformities. If you see any, it’s time to grab a new thermometer.

Incorrect Thermometer Installation

Incorrect installation is another common cause of bad temperature readings. Make sure your thermometer is properly placed in the grill following the manufacturer’s guidelines. It’s like playing the piano, you’ve got to get the keys in the right place to make the right sound.

The Thermometer Needs Re-Calibration

Thermometers can drift from their original calibration over time and need a little tune-up. Recalibrating your thermometer is a breeze, just use a water bath with ice or boiling water to check it against a known temperature.

For more information on how to recalibrate a thermometer, you can check out my guide: How to Calibrate a Digital Meat Thermometer

Finally, if you haven’t done so already, don’t forget to give your burners a quick once-over. Make sure they’re functioning correctly and free of blockages. If they’re not working right, you’re going to get a false reading on your thermometer.

By understanding the causes and how to fix them, you’ll be well on your way to grilling perfection, every time.

Propane Tank Issues

If you suffered another case of grilling gone wrong due to lack of heat, it might be time to blame your propane tank.

If the tank is low on fuel or not connected properly, this little guy could be the culprit behind your grilling struggles.

Here are some troubleshooting steps to decide if your propane tank is to blame:

  1. Fuel Up: Check the propane levels, if it’s low, fill it up! And, Pro-Tip: keep a spare tank ready, just in case.
  2. Connect the Dots: Ensure that the hose connecting the tank to the grill is snug and leak-free. Leaky hoses mean less propane and weak flames, or no flame at all. If there’s a leak, replace the hose or connection ASAP.
  3. Open Sesame: Check the valve on the propane tank. It needs to be fully open, so the propane can flow through the hose and into the grill. If it’s closed or partially open, the grill won’t get enough fuel.
  4. Fresh is Best: Make sure your propane tank isn’t expired. Yes, this is a thing. The expiration date is usually on the collar of the tank. An expired tank won’t give you enough pressure, and your grill won’t get the fuel it needs to heat up. So, if it’s expired, swap it out.

By following these simple checks, you’ll be able to fix or rule out the propane tank as the low-heat culprit in no time!

Gas Grill Not Getting Hot FAQ

If you still have questions, we have answers.

Below you’ll get answers to some of the most frequently asked questions when it comes to a gas grill with heating problems.

If you don’t find what you’re looking for, leave your question in the comments below or send me an email and I will get back to you.

Who knows, I might even add your question to this guide.

What to Do if You Smell Gas From Your Grill’s Propane Tank?

If you smell gas from your grill’s propane tank, turn off the gas supply and evacuate the area right away. You should then contact your propane supplier for directions. If you cannot reach them, call 911 or your local fire department. Do not return to the area until a professional determines it is safe to do so.

Why does my grill only get to 250 degrees?

Your gas grill will only get to 250 degrees if you fire up the control knobs before getting the LP tank valve turned on. If you try to turn on your grill in this order, the gas regulator safety device will kick in, and your grill will only hit a lukewarm temperature between 250-300°F, even on full blast with all burners blazing.

But don’t worry, it’s a quick and easy fix. Simply pop open the grill lid and that will reset that gas regulator safety device.

Does an orange flame mean propane is low?

An orange flame on your grill doesn’t necessarily mean your propane’s running low, but it could be a sign that something’s not quite right. An orange or yellow flame is usually a warning that the flame’s not getting enough air or that there’s a blockage in the burner.

Final Thoughts on Our Why Is My Gas Grill Not Getting Hot Guide

Grilling is a blast, but if your gas grill won’t get hot, it can turn your cookout into a bust.

Don’t panic though. If you’re wondering how to increase heat in a gas BBQ grill, there are several common things to check for this. Clogged burners, a funky ignition system, and gas leaks are just a few. We also talked about other possibilities like regulators acting up, thermometer errors, and old propane tanks. But don’t worry, with a little know-how and our tips, you’ll have your grill sizzling in no time.

So, pull out the tongs and keep this article handy. And don’t forget to check the manufacturer’s instructions and guidelines when working on your grill. And always make sure to follow safety precautions when working with gas appliances. Safety first!

Hopefully we answered all your questions on why don’t some gas grills get hot enough.


Pat G.

Next Steps:

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What Does an Infrared Burner Do on a Gas Grill

Which Gas Grills Can Use Natural Gas – Natural Gas Grill Selection

Which Gas Grills Can Use Natural Gas

How to Smoke on a Gas Grill – Simple Setup and Technique

How to Smoke on a Gas Grill – Simple Setup & Technique

Now It’s Your Turn

I want to hear from you:

Have you used an infrared burner on a gas grill?

Do you have any tips or tricks to share for using an infrared burner?

Are you going to be purchasing a smoker in the future?  Or do you plan on looking at a pellet grill, built-in or standalone gas grill, or charcoal model?

Let me know by leaving a quick comment below.

If you still have questions, please feel free to send me a message.


Pat G.

DisclosureAt The Grilling Life, I am committed to researching and writing thoughtful, informative and editorially independent reviews of the best products for your outdoor cooking needs.  If you like what I do, you can support me through my chosen links, which earn me a commission.  This allows me to continue sharing with you my love for all things barbecue.  Your support is truly appreciated.

Patrick Ginise

A backyard warrior, certified carnivore, lover of good whiskey, grill master and I’m Living The Grilling Life!

I have a passion for cooking with live fire and smoke, no matter the weather. I’m a real person just like you, who loves outdoor cooking and BBQ. Food, fun, and time spent with family and friends are what it’s all about! It is my mission to take my passion and knowledge for outdoor cooking and all things BBQ and share this expertise in techniques and grilling equipment with you. In other words, Living The Grilling Life!

I have personally tested over 150+ Grills and Smokers and hundreds of grilling thermometers, temperature controllers, grill brushes, grilling tools, fire starters, and other BBQ products.