I have a three burner Jenn Air gas grill and when I turn on all three grill burners the gas flow is considerably reduced. The right most valve appears to be the cause. I have normal flow from the center and the right IF the left is not used. Can you tell me what to fix?
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I have had the same problem before with same exact grill. The burners get clogged and the gas pressure backs up. I have had this actually split a gas valve and the plastic electronic igniters do not have a chance withe the head. Call nexgrill and get all new burners under warranty. This will solve the problem for a while. The latest burners that I received in Aug 2010 are 1/2 inch shorter and may solve this problem. You may want to buy new gas valves since the excess heat in this area may have damaged the valve. Since 2004, I am on my 5th set of burners, 2nd set of gas valves and 3rd electronic ignitor. May just recycle grill and get a Weber or go with charcoal.
Try this. Turn tank off, open all three burners for a minute or 2. Close burners. Open tank very slowly. Open primary burner, (usually the front burner) and try to relight. Should work, but if not check that valve is secured to tank and check for leaks with soapy water.
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.
The new style OPD valves have a small brass ring located in the female
fitting on the LP tank. Over time this ring can work loose and then it
does not allow the male fitting to fully depress the OPD valve thus
reducing your gas flow
Using a small flat bladed screw driver tighten the small brass ring This
should solve your problem
It could be a bad regulator but,highly unlikely . Check your air shutters at the end of the burner tubes and adust them properly.And if you have a OPD propane tank you maybe turning it on to quick causing the check valve inside the gas valve to open half way. Try opening the valve slowly.