Question about Nexgrill 720-0234 (LP)

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I have a Nexgrill 720-0073 stainless grill. The grill doesn't get very hot - around 200-250 and the flame level is low (BOTH sides). Tried a new tank of propane - same thing. I cleaned the burners late last year, and it HAS worked fine for a while after that.

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Hi and welcome to FixYa. I am Kelly.

Things that cause low flames

1. LPG Tank regulator internally corroded and diaphram can not open enough to supply the correct amount of pressure. (replacement regulator required) If you do an tapping on the regulator disconnect it from the tank and if you do strike it... use WOOD! Tap from bottom and then from top.... several times. When your done... do it one more time. This may correct the problem for a short period but if it is corroded internally the problem will repeat in as little as a month.

2. The orifice holes are restricted due to spider webs insects ets. (Remove burner and Physically clean the orifice mounted on the back of the gas valve.) Worst case the orifice has to be removed and the mini orifice hole cleaned.

3. Clogged internal burner air / gas passage (remove again and clean) Use a tooth pick to clean main burner holes. Use spot tie or something long and skinny to probe into the burner air / gas passage. (Wire coat hanger works too)

4. The burner gas valves on the stem nut side are coated with grease not allowing full movement of the valve stem inside the gas valve. (remove and clean with engine degreaser)

Thanks for choosing FixYa.

Kelly

Posted on Sep 07, 2010

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Regulator

Posted on Sep 07, 2010

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1 Answer

Used nexgrill for first time today. It's the combo gas and charcoal. Burners only lit like they are on the lowest setting when on high. Tried another propane tank and didn't make any difference.


The problem lies with opening the tank valve to quickly. This , then locks up the grill's regulator.

To solve this problem, do the following:

1. Turn the gas tank valve OFF and disconnect the hose from the tank.

2. Wait 5 minutes and reconnect the hose to the tank.

3. Open the tank valve VERY, VERY SLOWLY (Slow motion, slow).

4. Once the tank valve is fully open, light the burner farthest from the tank first and set the burner
control knob on HIGH. Does the flame height look correct for being set on HIGH? If so, light
the remaining burners the same way. Do all the burner flames look correct? If so, you solved
the problem. Remember, to always open the tank valve Very, Very Slowly.

If that didn't solve the problem, you will need to replace the grill's Hose/Regulator Assembly. It runs about $30.00 at any home center or hardware store that sells grills & accessories. If you replace it, turn the tank valve ON Very, Very Slowly.

Hope this helped you to troubleshoot and solve the problem. Happy Grilling!!

Thanks for choosing FixYa.

Aug 22, 2011 | Nexgrill 720-0234 (LP)

1 Answer

I just purchased a brand new tank of propane and i still have the same problem that the propane burns out of all 4 burners but at a really low flame even on high. I can not get the grill to heat up...


Turn the tank off. Disconnect the grill hose from the tank. Wait 5 minutes and reconnect the hose to the tank. Turn the LP tank valve on VERY, VERY SLOWLY until it's fully open. Now, light each burner one at a time and turn it up to the highest setting. If that didn't solve the problem, repeat the previously listed steps.

If after the second attempt the burners still only maintain a low flame, you will need to replace the grill hose/regulator.

Hope this solved your problem and Happy Grilling!

Feb 27, 2011 | Brinkmann Charmglow Stainless Steel LP...

2 Answers

Burner flames don't get hot, like not enough gas.


Try this, Turn off the tank. Disconnect it. Reconnect it. Turn tank valve back on very slowly and then see if you get bigger flame size.

May 15, 2010 | Weber Genesis Silver B Grill

2 Answers

Genesis s310 stainless grill. Does not fully light.


Regulator is not bad, as I stated before new valves are designed to reduce gas flow if valve is opened to fast. This is so if grill catches on fire, the tank will shut itself off, thus propane will stop flowing causing fire to extinguish itself.

Dec 28, 2009 | Weber Genesis E-310 Gas Grill

1 Answer

Propane grill won t get hot in cold weather


FYI - We had same (simular) problems with low flame on this grill. What it turned out to be, was a vabor lock.
The way to fix this is to
1) turn off alll burners
2) turn off the tank
3) take the supply line off of the tank
4) was for 1 minute
hook it back up - and everything will work fine

This is caused by changing tanks with the burnes turned on.

Good Luck

Dec 08, 2009 | Char-Broil Commercial Stainless Steel...

1 Answer

Flame is low with new tank. Flame is reduced when you turn on more than one burner.


turn tank off disconnect from gill make sure all knobs are off reconnect tank make sure fitting is all the way on tank turn tank on and try again

Aug 16, 2009 | Brinkmann Charmglow Stainless Steel LP...

1 Answer

Low flame


The newer type tank has an anti tip safety device. It gets all boo boo'd when the grill is moved around. Remove the tank. Open the valves on the grill and close them back. Re install the tank and slowly open the valve.

Jun 27, 2009 | Brinkmann ProSeries 810-6330-W Grill

1 Answer

Flames only come out very low on both sides


disconnect tank, hook tank back up, then open valve slowly. When opened to fast it thinks valve is leaking and shuts down.

Jun 11, 2009 | Char-Broil CharBroil Master Flame Gas...

1 Answer

The gas flow cannot be raised and a slight breeze puts out the fl


The new gas grills have a safety device built into the gas hose that can cause this problem until you get familiar with it. The flame on a gas grill should be blue. If you have a yellow flame it could be caused by a couple of different problems. First of all the burner might be worn out. If you have an older grill then you should inspect the burner to make sure that there are no cracks or holes and that all the burner holes are the same size. If you have a newer grill or burner, or your burner appears to be fine then the problem might be with the regulator. The regulator is a round metal object near the connector to your gas supply. Sometimes regulators get stuck. This can reduce the gas flow, make a yellow flame and keep your grill from getting hot. To solve a stuck regulator, turn off the fuel supply to your grill. Disconnect the main connector and open the grills control value. This will eliminate any pressure on the regulator. Sometimes this will reset the regulator, but sometimes they stay stuck. Take a small hard object like the handle of a screwdriver and give the regulator a gentle tap. Now you can reconnect everything and see how your grill works now. If you still have a yellow flame your propane tank might be low, the regulator may need replacing or you could have a blockage in the venturi tubes. So check your fuel level by pouring hot, not boiling water down the side of the tank. Feel along the side where you poured the water. The propane level is where the tank feels cold. If you have plenty of fuel, locate the venturi tubes. The venturi tubes are located along fuel lines right behind the control valves. These allow air to mix with the fuel before reaching the burners so they have a small open space. If that space is blocked it will restrict the fuel flow to the burner. Make sure it is clear of obstruction. If you have done all this and still have a yellow flame you may need to look at replacing

May 29, 2009 | Brinkmann 810-8410-S Stainless Steel...

1 Answer

Thermos Gas Grill


This is caused by a bad regulator. This is the silver device that usually attaches directly to your tank. Most hardware stores carry these regulators you will need the numbers off it to match up a new regulator for size.

Jun 21, 2008 | Thermos Stainless Steel Gas Grill

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