Green Mountain Grill Troubleshooting: The Ultimate Guide

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As a company, Green Mountain Grills has a solid reputation for quality and customer service. However, even the most reliable pellet grills can run into trouble sometimes.

Knowing how to identify and correct these problems in advance can save a lot of hassle. Take a look at this Green Mountain Grill troubleshooting guide to familiarize yourself with the basics.

Here’s a list of the issues that you might encounter when using a Green Mountain Grill, and the steps that you can take to resolve them.

Error Codes


These are the different error codes that you might see in the digital display window.


This message indicates a problem with the thermal sensor. It can be caused by a number of things: grease buildup, improperly positioned components, loose materials. For ideas on how to remedy them, see Thermal Sensor Problems, below.

When you’ve checked for any possible obstructions and eliminated this as the cause, remove the front control panel and check the wiring. If any of the wires are bent or damaged, the control panel will need to be replaced.


The “NOFD” readout means that the meat probe isn’t working correctly. Check the wire for kinks and make sure it’s connected securely.


This readout is designed to alert you to problems with the electrical components of the pellet grill. Always disconnect the unit from the power source before attempting to correct any electrical issues.


“FAL” means that the igniter component has failed. See Grill Won’t Ignite, below.

E01, E02, E04

All of these messages indicate a power overload, which can occur when the grill is hooked up to an unstable power supply. It can also happen if the circuit is shared by a unit that turns on and off intermittently.

Why are there different error messages for the same issue? The readout depends on whether the problem originated with the igniter, fan motor, or auger motor.


You’ll only see this message if you’re using the Davy Crockett model, which is Green Mountain’s entry into the portable grilling race. It means that the unit is suffering from low voltage, due to a power supply lower than 12v. It can be resolved by hooking the grill up to an adequate power source.

Temperature Problems

When it comes to pellet grills, this is one of the most common complaints. If the grill has ignited but isn’t reaching the set temperature, take a look at the combustion fan. If any of the blades are damaged, you’ll need to contact Green Mountain Grills for a replacement part.

The problem could also be due to a misplaced heat shield. The “V” on the bottom of the shield should be centered over the firebox in order to ensure even heating. When using the adjustment rod, make sure the shield is positioned at the “0” spot on the rod. For more advice on this issue, see Uneven Heating, below.

Auger Issues

Before using the pellet grill for the first time, you should charge the firebox by feeding a small amount of pellets into the auger tube. Once you’ve done so, turn the grill on and set it to cycle “0.”

Through the firebox, you should be able to see the auger turning. If it isn’t turning, the pellets may be jammed up around the auger’s intake. Turn the unit off and move the pellets around in the firebox, then return the grill to cycle “0.” You may have to repeat this step a second time before the pellets can feed completely through the auger tube.

Once the pellets have fed through the auger, turn the unit off again, then run it through all the cycles from 0 through 3. Listen carefully to the motor. If you can hear it and the auger still isn’t turning, contact customer support.


Clicking Sound

Sometimes you’ll hear a clicking sound from the pellet grill while the auger is turning. This happens when the wires beneath the hopper unit shift out of place and block the auger’s motor fan. Check the area and remove the obstruction to put an end to the clicking noise.

On the other hand, if the clicking sound persists even when the auger isn’t turned on, it could mean that one or more of the gears is stripped. In this case, the motor will need to be replaced as soon as possible.

Combustion Fan Issues

A faulty combustion fan can result in all sorts of trouble. Still, be aware that the fan may not always blow at a consistent speed. As long as it’s helping the grill to maintain a stable temperature, it doesn’t matter if it blows continuously or not.

If you do suspect that the combustion fan isn’t doing its job, your first step is to unplug the grill. Then try to turn the fan manually with your fingers. If the blades turn effortlessly and there’s no sign of damage, the fan should be fine. Otherwise, it will need to be replaced.

If the fan is undamaged and the problem persists, check to make sure the wiring is secure. Frayed wires should be replaced as soon as you notice them.

Thermal Sensor Problems

Whenever you fire up the pellet grill, check the temperature display. The readout should give you a number that’s fairly close to the ambient temperature, since the grill hasn’t had a chance to get hot yet. This is how you know the sensor is in fine working order.

Sometimes, the grill will display wild temperature fluctuations even when it’s been working fine up to that point. For example, if the readout goes rapidly from 200 to 450 degrees (or vice versa), it’s probably inaccurate. Likewise, if the display reads “SEN” instead of showing the temperature, you’re experiencing problems with the thermal sensor.

If you’ve wrapped your grease tray in aluminum foil for easy cleanup, check to make sure the foil isn’t blocking the sensor. The grease tray could also be improperly installed. Take a look at the instruction manual to ensure that it’s positioned correctly.

The problem might also be due to an improperly installed heat shield. See Uneven Heating, below, for advice on how to correct this issue.

If none of these steps resolve the problem, contact customer support at once.

Uneven Heating

If the grill isn’t heating evenly, a misplaced heat shield could be to blame.

To resolve this issue, carefully slide the shield to the warmer side of the grill, taking care to move it just 1/4-inch at a time. Once the temperature begins to increase on the cooler side, the heat shield should be in the right spot.

Tip: When you’ve found the proper placement, take measurements so you’ll be able to put the shield back in the correct position every time you move the grill.

Grill Won’t Turn On

If you’ve pushed the power button and the grill still won’t turn on, the first step is to make sure the power cord is plugged into a working outlet. Once you’ve done that, check to see if the adapter light has turned on.

Still having trouble? Inspect both ends of the power cord to ensure that you’re getting a strong connection. The next step is to unplug the grill and check the circuit breaker and ground fault circuit interrupter (GFCI). If another appliance works when you plug it into the same outlet, the issue isn’t with the power source.

The last step you can take is to remove the control panel from the grill and check for any loose wires. Make sure the grill is unplugged before you attempt this. If the grill still won’t turn on, it’s time to contact Green Mountain’s customer service department.

Grill Isn’t Heating Up

When this occurs, check the firebox. In most cases, when the grill doesn’t reach the desired temperature, it’s because the firebox is overloaded with pellets. If that’s the problem, turn off the grill until you’ve had a chance to clean out the firebox, then start over.

Tip: You’ll need to prime the firebox before the first use, and also if you’ve allowed it to run until the auger component is completely empty.

Grill Won’t Ignite

You may be alerted to this issue by the “FAL” message. When the grill isn’t lighting, it could be because there’s too much ash buildup in the firebox. Make sure to wait until the unit has had a chance to cool down before attempting to clean it out.

Similarly, the firebox may be too full of wood pellets to ignite properly. Because the igniter won’t work unless the air can flow freely through the compartment, this is a common problem. The same issue can occur if the auger isn’t feeding the pellets into the compartment at all (see Auger Issues, above).

As a last resort, check the combustion fan. If none of these fixes does the trick, the igniter is likely defective and in need of replacement.

Tip: You can light the grill manually while you wait for the replacement part to arrive. Just add a handful of pellets to the burn pot and light them with a propane torch.

Smoke Coming Out Of Hopper

This can be an alarming sight, especially if you have guests you’re trying to impress. The key to avoiding it is to keep the burn pot as clean as possible. Clear out all ashes and pellets on a regular basis.

It’s also important for the hopper lid to fit snugly. Press down on every corner of the lid until it’s sealed as tightly as possible. If the lid is warped, you can perform a quick fix by using two sheets of tin foil to create a seal between the lid and the hopper.

The pellet dump door should fit tightly as well, and the square gasket between the hopper and auger needs to be well-sealed. Alternatively, you can inspect the combustion fan for damage and replace the part if necessary.

Beeping Low Pellet Alarm

A constantly beeping alarm could be a sign that the pellet level has fallen beneath the sensor. Refilling the pellets usually does the trick. If not, you can try unplugging the grill, then disconnecting and reconnecting the alarm. When these steps don’t work, it means the alarm is broken.

Tip: The low pellet alarm is just a secondary feature. If it’s beeping all the time, you can disable it and continue cooking as usual.

Temperature Control

When it’s working correctly, a unit from Green Mountain Grills offers a temperature range of 150 to 500 degrees Fahrenheit.

If there’s a power interruption, you can use the “hot start” button on the mobile app (see below) to restart the unit, so it won’t lose too much heat. There’s also a heat shield mode that will alert you when the hopper is running low on fuel.

Issues With Wi-Fi

Green Mountain Grills offers a mobile application that allows you to control the temperature of the grill from a distance. This is an ingenious and useful feature—as long as it’s working correctly.

When the Wi-Fi feature is malfunctioning, it’s time to reset the system for an update. Here’s how to do it.

Attempt to reset the router. You may need to repeat this step several times, just in case.

Next, make sure that the Green Mountain Grills network signal is coming through. The stronger the signal is, the better results you’ll have.

Check the grill antenna and ensure that you’re using the 2.4 GHz band on the router.

Set the password, taking care not to use the “!” symbol. In fact, it’s a good idea not to use any special characters at first, since older versions of the Wi-Fi feature didn’t accept them. The password should also be less than 40 characters.

If the update works properly, the grill will be connected to your home’s Wi-Fi network.

When these steps don’t work, it means that the system is unable to locate your grill. That’s when you need to contact someone in the customer service department.

How To Reset

If you need to reset the grill for any other reason, here are a few more tips:

Disconnect the unit from the power source and then plug it in again. Press the “FOOD” button and turn on the grill. Wait 15 seconds before releasing the button.

Wait until the LCD readout reaches 999, then unplug the grill again. Plug it back in and wait for 30 seconds. You should be able to use the grill again with no problems.


If all else fails, contact the manufacturer directly. As long as the grill is still under warranty, they’re responsible for replacing any damaged parts. Be sure to act before the warranty expires, or the company will no longer be obligated to help out.

Final Thoughts

If you encounter any more problems in the future, now you have enough Green Mountain Grill troubleshooting experience to address them. Fortunately, the company has a friendly and knowledgeable customer support department that will be happy to assist you if you continue to have trouble.

Best of luck, and happy grilling!

Darren Wayland Avatar


55 thoughts on “Green Mountain Grill Troubleshooting: The Ultimate Guide”

  1. I have three green mountain grills none work need help would like to talk to someone on phone I don’t like texting and have trouble with internet

  2. Grill will begin to heat up and then it will start going down. For instance, it may heat up to 100 degrees and then drop back to 85 degrees.

    • As a electrical engineer you can not run anything with a switch on it with a GFI. Unplug the grill, turn on the switch and then plug it back in.

  3. I have a new Davey Crockett. 2nd one I’ve owned. Bought it to smoke fish at 150 degrees. It starts and gets to 150. Half hr later it’s off my other one never did that. Do I need to do a reset??

    • For some reason the new grills won’t smoke at 150, if you don’t change the temp within 15 minutes after it reaches 150 it will shut off.

  4. My Daniel Boone will feed pellets and start normally. The igniter works and burns the pellets. THE PROBLEM is that the auger doesn’t stop feeding pellets, ever. Just keeps feeding till the hopper is empty. Gets to about 120 then starts to drop to 100. I opened it up to look at the fire box and the entire bottom of the smoker is full of pellets.

  5. My gm grill gets to temp then after awhile temp starts dropping and continues to drop. What is the cause of this it’s very frustrating when your trying to do a long smoke!

    • @Ian and @Brenda,

      I too was getting the FD1 after I attempted to do a firmware update, I believe this was due to my failed update. After I joined my grill to my wifi (SSID Case Sensitive, who would have thunk that) I was able to update the firmware. My grill was two updates behind. The FD1 no longer displays.

      I used the app on the phone to get around the FD1

  6. I have a Daniel Boone model. I purchased it two years ago. I have difficulty with it losing heat. It is hot then I go away and it is getting colder all of the sudden. I have to set it at 360 so it will heat up to 300. It will not go to hot temps without really forcing it. Even then it will just stop trying and go to colder temps. It is very frustrating to use this machine. I don’t think I should have to babysit it in order to get things cooked. Can you help me?

  7. My DB started going above 200 deg at start up now instead of stopping around 150. Cleaned everything and still an issue.

  8. My grill will heat up to 250 but when I try to set for the temperature I want nothing happens I get a node and I don’t have the meat prob plug in

  9. My Davy Crockett has been used only 3 times in 18months (I have a Daniel Boone and now a Jim Bowie also) however yesterday I tried to use it at our camp for Tri-Tips and it heated up to 150 degrees and then shut off, no cool down nothing, there was power to the power box as the light was on just no power to the unit. I checked the fuses at each end of the cord and they were both fine. Is there another fuse? please help as I have an event this weekend that will require all 3 units.

    • The new grills won’t smoke at 150 degrees after 15 minutes it will shut off if you don’t raise the temp to maybe 165 or 185, try this and see if it takes care of the problem, my DB Prime is 5 years old and it will smoke at 150, but not the new ones, not sure of why they programed it that way, maybe because people were forgetting they turned on the grill, so it’s a safety feature.

  10. We LOVE our green mountain grill! The button to adjust the temperature doesn’t work well. sometimes it takes 5 minutes or more of pushing it to get it to adjust to a higher temp. Any quick fixes or do we need to order something.

  11. My grill is leaking grease both around the normal location but also between the pellet box and the grill. Also leaking down the front. Any suggestions on fixing these issues. Great grill but making a mess every time I grill.

  12. I plug-in my Daniel Boone green mountain grill and we get a screeching sound from it! It is definitely coming from the unit itself it will not stop until I unplug the unit. It’s more like a high whistle. Anyone else having this problem? I cannot find anything under troubleshooting. I have only used the grill one time. Would appreciate any info…

    • @Suzette, I have a Jim Bowie. I’m having the same issue high pitch noise. Have you been able to remedy the issue? If so would you please share the information.
      Thank you
      In advance

  13. My Daniel Boone was cooking away. I rolled it aside to replace my mat. The grill stopped. Has “Off” on the display. Tried multiple times to restart. It begins then clicks off within a few seconds. Unplugged. Waited 30 minutes. Plugged in and restarted. Same issue. Something stopped working when I rolled it a few feet while the grille was cooking. What happened? Please give me some ideas on how to resolve this issue.

    Thanks. Joe Leathers.

    (Parr Lumber Company. We are a GM dealer. 28 lumber yards. Stock these grilles in all of our yards)

  14. My gmg turns up to 150 and stops. Theirs a red led light that blinkes then it won’t let me turn it up anymore and a code pops up nfd.i have replaced the thermal sensor and the food thermometer. It still does the same thing no changes please advise

  15. GMG Prime App needs Firmware Update

    These were my steps to get the “Prime App” working with my Peak grill

    1. Download GreenMountainGrill legacy app
    2. Click on settings bottom right corner then Connect to your grills wifi
    3. Click on settings bottom right corner then click on update grill
    4. When joining your wifi network, the SSID is case sensitive.
    5. You will see your grill counting up from 0 to 100 and then should say SUC. Once you see that unplug grill and wait 10 seconds and plug back in. It should count back up 100. Now your firmware is updated. Unplug, wait 10 – 15 seconds and plug back in
    6. Now open the PRIME APP, it will detect your grill. You may or may not need a second update. Basically repeating step 5 .
    7. Now when you open the Prime App you should be good to go. Have not had any issues since then.

    * This also cleared a FD1 display I had.

    Hope this helps.

  16. I’ve moved my heat shield towards the end away from the hopper to help with uneven heating and it did help, but now it is getting worse again. It is very frustrating and I am disappointed in this Jim Bowie grill. Really enjoyed it when we first got it., not so much anymore.

  17. My Daniel Boone grill leaves a heavy layer of soot on the items on the grill. O I was cooking at 450 to 500 degrees with the lid closed. I’ve had this problem for about a year
    I have cleaned an vacuumed out all parts of the grill with no visible changes.

  18. We have a Davy Crockett and today the temp would not hold. We set it at 150 degrees and it would not hold the temp. Would this be an issue with the temp sensor? We have done a reset and that did not change anything. Could someone please help with this.

  19. i am not getting any power to my grill. the blue light does not come on when it is plugged in. it works fine when i hook it to 12v.

  20. replaced the thermal sencor and now all i get is 000 thought i got a back sencor and ordered another same thing happened. can you help me out

    • @Jodi, I’m having the same issue, have replaced my igniter and my sensor and now receiving all 000 on the display. Would like to know how to fix this issue.


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