My grill will not ignite. I tried both ways. What could be wrong?i hear the gas but it wont start

Ok, here is a check list for you of the most common lighting problems:

1) Check your tank. Is it empty or nearly empty? The tare weight (T.W.) of your cylinder is stamped on the collar. That is the weight of your empty cylinder, usually around 18 lbs. Weigh it on your bathroom scale. Propane weighs 4.25 lbs/gal. If it weighs around 20 lbs or less - Refill it. If not, go to #2.

2) Make sure you didn't turn the gas on too fast. Some gas hoses have a built-in excess flow valve that stops the flow of gas to a trickle if opened too fast. Close the tank valve and let sit for a minute. Turn the tank valve slowly and then try lighting it again. If it doesn't, go to #3.

3) Is the igniter sparking? Some are battery powered-check the battery or replace it. If you have a standard push button piezzo igniter or a rotary style igniter, check for spark. Can you hear or see the spark? It's hard to see the spark in bright daylight. It's easier to view the spark at dusk or dawn. It should spark an "arc" at the burner. If not, adjust it if necessary. The igniter wire may have a short, causing the spark to arc somewhere else along the wire and not at the burner. Replace igniter wire. It's also possible the igniter tip where it sparks has a cracked or broken porcelain portion of the igniter, causing the spark to not arc at the tip where it's supposed to. Replace the igniter piece. If not, go to #4.

4) You may have a rusted, clogged or damaged burner or venturi tube. With a flashlight, check for spider webs, wasp nests or dirt (mud) dauber nests in the opening of the venturi tube where it connects at each gas valve orifice. Clean it out manually or blow it out with air compressor. Make sure the air adjustment opening has not been changed. If it's closed too much, it will be difficult to light and cause lazy yellow flames. If it's not clogged, the burner may just be old and rusted and the holes are not allowing much gas thru anymore. It's also possible the burner has rusted so bad, it has too large of holes, falling apart or cracks along the seams. If so, replace burners immediately. It is unsafe to use. Your local propane co can usually order what you need and some will even do the work, if you are uncomfortable doing it.

Hope this helps! Good luck in your trouble shooting!