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Started By
Message
Can't get Weber Genesis to burn above 250 degrees.
Posted on 6/26/26 at 8:46 am
Posted on 6/26/26 at 8:46 am
I've switched out the tanks. It's only two years old. Any suggestions?
9
Posted on 6/26/26 at 8:49 am to prplhze2000
If you're getting the same weak flame in all burners it's got to be a leak somewhere between the tank and the grill in the gas line or connections.
That's my guess. Replace those parts.
That's my guess. Replace those parts.
Posted on 6/26/26 at 8:53 am to prplhze2000
Safety switch. Make sure the lid is open when lighting the burners.
Posted on 6/26/26 at 9:45 am to prplhze2000
It's the regulator...that aluminum disc on the hose from the tank. I think I needed to disconnect the hose from the burner manifold and reconnect, but it's been a couple of years. There's a process you can find on Google/ YouTube.
Posted on 6/26/26 at 12:03 pm to coldcoldcajun
yep, vote regulator as well. Very slowly turn the gas on at the bottle, then try
Posted on 6/26/26 at 12:16 pm to SaltyMcKracker
I have had luck lightly smacking it with a hammer.
Posted on 6/26/26 at 12:27 pm to coldcoldcajun
Another vote for the hose regulator.
Posted on 6/26/26 at 3:23 pm to prplhze2000
When that happened on my Weber, I contacted customer service and they sent me a new regulator.
Posted on 6/26/26 at 5:43 pm to prplhze2000
As others have said, it’s the regulator, but might not need to be replaced. They have a safety feature built in. Google Weber regulator reset and try that before replacing.
If I don’t light mine in the right sequence it does this.
If I don’t light mine in the right sequence it does this.
Posted on 6/27/26 at 1:01 am to rustyjohnson
If you have the valves at the grill open and then open the bottle valve then the regulator will sometimes not like it and give low gas flow. Close the bottle valve, close the grill valves, open the bottle valve, and then open the grill valves.
Posted on 6/27/26 at 10:24 pm to prplhze2000
Weber has fantastic customer service. Did you register it when you bought it? If you did and it’s only 2 years old they will take care of you. When I bought mine, the two doors in front didn’t line up. They replaced the whole thing no questions asked.
Posted on 6/28/26 at 4:47 pm to prplhze2000
This is likely an easy fix. Common issue when gas runs out, you cut off the bottle with the knobs turned on, or other action that triggers a safety valve. Here is what AI says.
If your grill has weak or no flames after changing the propane tank, your regulator's safety valve is likely stuck. This often happens if the tank valve is opened too fast. Do not buy a new regulator yet. You can usually fix this by doing a simple reset.
How to Reset the RegulatorFollow these quick steps to reset the gas flow:
Turn off everything. Turn all the grill's burner knobs to the "OFF" position.
Close the tank. Turn the gas valve on the propane tank clockwise until it stops.Disconnect the tank. Unscrew the large regulator nut from the tank.
Relieve gas pressure. Open the grill lid. Turn all your burner knobs to "HIGH" for about 1 to 2 minutes. This lets any trapped gas escape.Turn knobs off. Turn the burner knobs back to the "OFF" position.
Reconnect. Screw the regulator nut back onto the new propane tank. Tighten it firmly by hand.
Open the gas SLOWLY. Turn the propane tank valve counterclockwise very slowly (only about 1/4 to 1/2 turn at first). Opening it too fast triggers the safety bypass again.Light the grill. Turn on one burner knob and press the igniter or use a long lighter.
If your grill has weak or no flames after changing the propane tank, your regulator's safety valve is likely stuck. This often happens if the tank valve is opened too fast. Do not buy a new regulator yet. You can usually fix this by doing a simple reset.
How to Reset the RegulatorFollow these quick steps to reset the gas flow:
Turn off everything. Turn all the grill's burner knobs to the "OFF" position.
Close the tank. Turn the gas valve on the propane tank clockwise until it stops.Disconnect the tank. Unscrew the large regulator nut from the tank.
Relieve gas pressure. Open the grill lid. Turn all your burner knobs to "HIGH" for about 1 to 2 minutes. This lets any trapped gas escape.Turn knobs off. Turn the burner knobs back to the "OFF" position.
Reconnect. Screw the regulator nut back onto the new propane tank. Tighten it firmly by hand.
Open the gas SLOWLY. Turn the propane tank valve counterclockwise very slowly (only about 1/4 to 1/2 turn at first). Opening it too fast triggers the safety bypass again.Light the grill. Turn on one burner knob and press the igniter or use a long lighter.
Posted on 6/28/26 at 5:23 pm to coldcoldcajun
Easy to replace the regulator. Industry standard components.
Posted on 6/29/26 at 10:26 am to prplhze2000
quote:
Weber Genesis
Poster-child of product enshitification, outside of the Kettle the entire Weber product line is junk now and living off a reputation it no longer deserves. Check the regulator, hopefully an easy fix then dump that thing on Marketplace and get something better.
Posted on 6/29/26 at 11:06 am to Clames
quote:sad but true. I looked over a very expensive Weber gas grill at the store the other day and was shocked at how flimsy the thing is. There was no part of it that suggested it would be durable
outside of the Kettle the entire Weber product line is junk now
Posted on 6/29/26 at 11:23 am to cgrand
I was at the Navy Exchange last week, whole line of Weber, Traeger, and Blackstone on sale and Weber grills were by far the flimsiest. I had my dad's 1990's era Genesis for a while before it finally needed too much repair work to be worth the effort, the aluminum casting for the tub was at least double the thickness if not more of the new ones. May as well buy a Dyna-glo... 
Posted on 6/29/26 at 1:12 pm to Clames
quote:
May as well buy a Dyna-glo...
We rented a lake house and the grill was super fancy and the owner wouldn't let renters use it. We missed this in the listing and of course wanted to grill out a lot over the week.
Bought a dyna-glo from Home Depot for less than $200 and used it all week and just left it there with a note in their email that said "Next renters can use". None of the 3 husbands wanted to take it home. I took the propane tank though
I swear the thing was made of aluminum foil and paper clips. Absolute trash.
Posted on 6/30/26 at 5:07 am to prplhze2000
quote:
I've switched out the tanks. It's only two years old. Any suggestions?
Did you get it working? It's about 95% chance that my recommendation above will fix it. Common issue when a grill runs out of gas with the knobs set to on and you change the tank.
Happened to me last year at a short term rental, and fortunately I remembered reading about the safety valve issue, googled it, reset it, and got cooking again.
You may have to do it a couple times before it works, but it will almost cetainly work.
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