Anyone know what would cause the burners in a gas grill to roar like a blow torch. SIL just replaced the burners in a gas grill ( something he has done numerous times ) and now when lit they burn ok for a few seconds then one or more will suddenly pop and start to roar. They are still burning but they roar. Flame is a nice bright blue with no yellow showing. Tried 3 different regulators and same thing with all three.
Gas grill.
- Thread starter Schattenreiter
- Start date
- Replies 25
- Views 413
Pictures? Could be an air adjustment.
Also, make sure there is nothing inside the burner tubes. Shipping/packing materials, bugs, nests, etc.
Ensure that the burners are over the orifices correctly. Orifice should be close to centered on the burner opening.
Also, make sure there is nothing inside the burner tubes. Shipping/packing materials, bugs, nests, etc.
Ensure that the burners are over the orifices correctly. Orifice should be close to centered on the burner opening.
Last edited:
OP
Difficult to get pictures because of the way it is built. If it is open enuff for pictures then you can't light it.
Your Sister in Law is a he?!
jk...Perhaps improperly sealed joint where the new burners connect to the gas line (at the burner connection, not the regulator or tank).
I know of a propane forge that has a small leak at the base of the air intake - right where the propane & inflowing air mix; it is usually fine, but slight pressure fluctuations can cause the fuel/air mix to ignite in the intake channel, which causes it to roar.
If there was an inadvertent gasket pinch/brass deformation/ ferrule damage/ missing spot of pipe dope when your Son in law was tightening the connection, it may be drawing in excess air that couldn't be adjusted by any usual means.
OP
Cuisinart brand grill. Don't know the source of burner. They were in individual plastic bags, not that that means nothing could be in them .
Different burners mess up at different times. Turn it off and relight and it may or may not work.
Different burners mess up at different times. Turn it off and relight and it may or may not work.
OP
There is no actual seal between nozzle and burner.
I'd pull the burners, check the insides for any type of obstruction. Then carefully reinstall them one at a time, making sure they are fully and properly over the orifice and seated properly at the far end.
It sounds like something is interfering with the gas/air mixture. It could be something as simple as a misalignment of the burner tube. The random nature of it suggests that it's very slight and is being affected by air currents
It sounds like something is interfering with the gas/air mixture. It could be something as simple as a misalignment of the burner tube. The random nature of it suggests that it's very slight and is being affected by air currents
OP
I am about ready to pull out hair I don't have. Tail end of burners has a pin that it sits on so no real way to adjust where the burner sits. Nozzles mount in the front cover and pass thru the next cover. No adjustments there. Front end of the burner passes thru a hole in the next cover to sit over the nozzles. Tried unpinning the burners and moving them in and out. No difference. No way to move them side to side.
ronn47
Where's the Scotch?
2A Bourbon Hound 2024
2A Bourbon Hound OG
Charter Member
Benefactor
Life Member
Multi-Factor Enabled
OP
Have not tried that yet. Grill in one place and compressor in another. Not exactly convenient to get the two together and I don't currently own a portable tank.
OP
Your Sister in Law is a he?!
Perhaps improperly sealed joint where the new burners connect to the gas line (at the burner connection, not the regulator or tank).
I know of a propane forge that has a small leak at the base of the air intake - right where the propane & inflowing air mix; it is usually fine, but slight pressure fluctuations can cause the fuel/air mix to ignite in the intake channel, which causes it to roar.
If there was an inadvertent gasket pinch/brass deformation/ ferrule damage/ missing spot of pipe dope when your Son in law was tightening the connection, it may be drawing in excess air that couldn't be adjusted by any usual means.
What are you laughing at? His BIL is a she. 😱 😂
OP
Ok this is weird. Just lit the grill after putting the dripping guards on and it seemed to work better but raining to hard to hear the roar and it is located under a metal roof. Burners appear to be working ok but when the rain let up I could hear the roar.
Turned them all off and on the last one I thought I saw what appeared to be flame inside the burner it rolled from one end to the other as the gas dissipated. Is that even possible?
Turned them all off and on the last one I thought I saw what appeared to be flame inside the burner it rolled from one end to the other as the gas dissipated. Is that even possible?
OP
Yes but this is a tank we changed to after noticing the problem. Other tank was getting low.
OP
Yes. First with one that was low and then with a full tank.
It seems to be better now but it is raining so hard and my hearing sucks. I can't really hear the roaring as bad as yesterday.
OP
Here is a picture of the burners working. Tries to upload a short video of them when a couple started roaring but it wouldn't let me.
Last edited:
They look good. Ignitor on #5 burner might be just a smidge too close but if it's lighting fine I wouldn't mess with it.
It's possible that there was a little something in the new burners that had to burn off, even it's it's just some rough edges around the burner openings. They may "burn in" and settle down. Once the drip covers and grates are on, I'd just run it and see if it calms down. Shouldn't be an issue unless they're going out and then relighting with a bang.
It's possible that there was a little something in the new burners that had to burn off, even it's it's just some rough edges around the burner openings. They may "burn in" and settle down. Once the drip covers and grates are on, I'd just run it and see if it calms down. Shouldn't be an issue unless they're going out and then relighting with a bang.
OP
Not going out just roaring. A couple of times one would roar and then stop.
SIL just told me there were 4 screws in the front.panel he didn't put back in. Going to get them in fist and see if that fixes it. I know when he only had the top screws in the panel they all roared until I pushed the bottom in place.
I really appreciate all your help.
OP
Trying to get the video to post.
OP
Air interference or fuel/air mixture. The flames themselves look good though so I don't think it's a mixture issue.
Secure the front cover, put the drip covers on and the grates. Then see what happens, especially after it stops raining. You're getting a lot of wind blowing the flames around
Secure the front cover, put the drip covers on and the grates. Then see what happens, especially after it stops raining. You're getting a lot of wind blowing the flames around
Last edited:
OP
It sounds like your getting a back fired gas leak lit.
Like when a torch head is leaking and a flame start at the nut by the handle.
Are the orfices tight on the manifold?
Like when a torch head is leaking and a flame start at the nut by the handle.
Are the orfices tight on the manifold?