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I HAVE A JENN-AIR MODEL NO. 720-0061-LP. THE WILL WILL ON PRODUCE A LOW FLAME AND DOESNT HEAT EVENLY.I HAVE TRIED MANY DIFFERANT TANKS AND HAVE THE SAME RESULT.I FEEL JENNAIR PRODUCTS SHOULDNT BE 1 YEAR AND DONE GRILLS LIKE MOST OTHERS. COULD YOU PLEASE HELP ME WITH THIS PROBLEM. TONY HUGHES

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Posted on Jan 02, 2017

SOURCE: Jenn-Air outdoor grill - model: 720-0150-LP

your propane hose or tank has a leak and the regulator is restricting flow

Posted on Aug 22, 2008

  • 3 Answers

SOURCE: My Q 120 grill will

Often with a big bottle, people turn the gas off and on at the big bottle and leave the grill valve open. That makes the regulator see a low pressure on its output, which is a potential leak indication. It goes into "bypass". Try turning off the tank, turning off the grill valve, and turning on the tank, then waiting 20-ish seconds before turning the grill valve on.

Posted on Feb 21, 2009

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SOURCE: Jenn Air lp grill won't light with the ignitor button

I just finished cleaning our starter on our jenn air. Over time, corrosion, rust and battery acid builds up on both the coils on the lid (positive side) as well as in the battery chamber and negative tip inside the chamber. I used sand paper and sanded the coils in the cap and the chamber. The coils need direct connection to the battery to create the charge. There are no instructions on this that I was able to find. I figured it out after about 3 hours of fussing with it. It worked immediately once I placed the battery back in. You may also need to clean the electrode tips near the burner. I used a q-tip. Hope this helps.

Posted on Apr 20, 2009

  • 1 Answer

SOURCE: jenn air propane grill conversion

It is inconceivable to me that large manufacturers like Jenn-Air and Nexgrill can jointly make and sell an expensive grill and then completely abandon the consumer. I purchased an Jenn-Air 740-0142 LPG and like so many wanted to convert to nautural gas which requires a larger gas orifice. I spent a month on the internet and phone calling Jenn-Air and finally Nexgrill who actually manufactured the unit in China. The Jenn-Air and Nexgrill serial numbers are the same. the 740 prefix is LPG and the 750 prefix is natural gas. After three calls to Nexgrill I found a manager who actually acknowledged making Jenn-Air but declined selling me parts for it as I believe they have product liability concerns. I call back as a Nexgrill owner and finally ordered natural gas orifices at $10.00 each. The shipment never showed up. Calling back again I was told that they really didnt really have any orifices in stock but could sell me the entire replacement gas valve for $28.00 which I purchased. The valves actually arrived on the shipping receipt was from The Grill Services in City of Industry 909-718-6128 www.grillservices.com . Part number 750-0141/142/593/594.

Forget about pirates in Somalia... we have them right here. Shame on you Jenn-Air and Nextgrill.

Posted on May 31, 2009

  • 1 Answer

SOURCE: 1st burner goes out when 2nd burner is turned on

I had the same problem. They original regulator and hose were poorly designed for this model. There isn't enough room underneath without crimping the hose. I bought a standard regulator and shorter hose combination a Home Depot for about $20. It makes a 90 degree turn coming out of the tank and does not kink the hose.

It was worth the $20.

Posted on Jun 03, 2009

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Hi,

This is normal, Jenn Air along with many manufactures use one ignition module for all the burners. So when you turn one knob on all the ignitors on top will spark but gas will only flow to the burner with the knob on.

Here is a copy paste from a Jenn Air Owners Manual, I do not have your model number so I cannot be sure this is the exact phrase in your book.

I hope this helps!

To Set:
1. Push in and turn knob counterclockwise to light the burner.
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This seems to be a problem for most Jenn-Air users. The burners are defective, rusted or clogged and allowing the flame to "back up." You most likely have a melted electronic ignitor as well as gas valve damage. The new burners that I received this week for my model 720-0061-LP are 1/2 inch shorter than previous versions. Time will tell if this fixed the problem. I would call Nexgrill and get all new burners and inspect the gas valve area for damage. Since 2004, I am on my 5th set of burners, glad they were free since I have a lifetime warranty on my model.

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Soot deposits from my brand new downdraft jenn-air gas cooktop


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Doesn't burn hot


Ok your pretty sure the grill is cooler than it should be and I'm not a cook. About the only thing I can think of is the LP regulator assuming its on LP gas. Or I remember a few years ago someone had some LP tanks out that had water in them and they were recalled.

Assuming the Gas IS LP, and the quality of the GAS is 99.99% like it should be it just leaves the regulator, or the machine (if new) was made for a differant type of fuel.

If the machine is older than a year or so there could be spider webs blocking the air inlet to the mixing chamber and causeing incomplete mixing with air/oxygen thus not buring hot (or clean in some cases). Follow the tubing from the tank and on to the knob. somewhere around the knob/valve area you will see the mixing area where air is drawn in. Incomplete combustion is the result of not enough air or wrong type fuel or wrong pressure more noticable and associated with high pressure. Low pressure is what you seem to be discribing and I would check my regulator. This can be checked by an expieranced person as you or me who have seen a good LP flame before. Blue with lighter blue tips and feathers and finally a faint plasma area. NO yellow or orange in any apprecaiable quanity and deffinately NO Smoke or soot. Any of these signs appear take this thing back where you got it and get another or to a repetuable LP retail sales jobber (NOT Wal Mart or Lowes). Some grills have been made for Natural Gas and if on LP I think it would be yellow and sooty.

Finally if the burner can be taken out it may not be alined with the feeder tube or other internal parts. If it has blown over during a storm, knocked over by a dog or kids or something look for this type of problem.

(If you decide to change the regulator yourself DO NOT USE ANY PIPE DOPE OTHER THAN THAT IS APPROVED FOR USE WITH LP GAS. DO NOT USE TEFLON TAPE WITH LP GAS OR ANY DOPE WITH TEFLON IN IT, Teflon is a byproduct of Petrolium and LP is a great solvent so it wont last).

Hope tiese little things help you decide what to do or what is wrong. Please let me know If I need to expand. Rate me as high as you can and thasnks for using fixya.

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From a tag that came with the grill -

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When turning on the LP gas cylinder valve, make sure to open the valve SLOWLY two complete turns to ensure proper gas flow.

All LP tanks now come equipped with a leak detection device internal to the tank, when gas is allowed to escape rapidly it will restrict the gas supply to the appliance. Opening the valve rapidly may simulate a gas leak, causing the safety device to activate, restricting gas flow and causing low flames or poor ignition.

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I would guess you triggered the tank failsafe inadvertently.

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