Grill will not stay lit if using 4 th burner will only work on 3 burners and gas is low

make sure the propaine is not to low and the burner orafice is clean

turn off gas source, check gas line for possible blockage to that 3rd burner, sometimes when we cook food with liquid , such as sauces or soups , then tend to overflow and get into the burners and the gas lines causing a blocked gas line, where the lower half of gas line is filled with liquid,,,

this is a gas fireplace & everything is on low flame high flame it just won't stay lit

Hello,
You may have turned the gas tank valve on too fast. Turn it back off, disconnect it and reconnect it. Then very slowly turn the valve back on. Light one burner at a time and turn to low before lighting the next. If you are hearing and smelling gas with the tank on but all grill knobs off, don't use the grill. You may have a leaking grill valve, regulator or hose. If you are only smelling gas with the knobs on, it's possible you have a clogged burner or orifice from bug nests, spiderwebs, etc and need to clean it out first. Hope this helps. Douglas

Try taking a large hammer or set of vice grips and banging pretty heftily on the tubes feeding the burners. These are usually build ups of Carbon. If not, then make sure your connections are good (sort of move them around to see if they are loose), and make sure your propane is not getting too close to empty (you can shake it around and feel/hear the propane).

it sounds like it is a natural gas grill instead of propane change out your orifices

I contacted the company. Phone number 800-694-0013. You can order replacement parts thru them but they cannot take credit cards by phone you have to mail in the payment and they will Fed-Ex the part when they receive it. The lady I spoke with was very nice and helpful, she stated these grills are made for Meijer's pretty much exclusively and they are made in China and that if you can locate their website it is all in Chinese. She also stated the distributor has opted not to sell the replacement parts for these in the store.

Probably 1 of 3 things:
Check your LP tank valve at an LP filling station. Make sure both valve and tank are in working order.
Next check for webs or cocoons up around where knob valves go into burners. You may have to remove burners to see into back of valves. Then swab orifice holes with a torch tip cleaner.
Third, a Menards , LP outfitter/station, or grill shop should have a universal replacement rubber gas line and "regulator"(possibly plugged or stuck shut). Sometimes you end up with cheap/bad regulator out of the factory.
Good luck and hope one these helps or does the trick.

Remove the 2 grill wire cooking racks by lifting them out of the top of the grill, next lift out to remove the 3 heat deflector panels which exposes the 3 burner tubes. Remove the 4 screws located on the outside flanks (2 on each side) of the 5-knob control panel assembly - then gently slide the knob control assembly outward and away from the grill just about an inch or two. You can now remove the old burner tubes and replace them with the new units. Then simply slide the control assembly back into the grill frame and replace/tighten the 4 screws. Voila`

Spiders like to create little hidey webs in the tubes of propane grills and stoves.

Take it apart as much as you can and blow compressed air through all of the holes and apertures. You can either take it to the gas station and us the $.25 air machine or buy a can of compressed air at your computer store.