I have weber q200 grill and only 2/3rds of the burner will light. what is causing this?

Q200 has a red piezo module in the support leg on the side.

Whether you're using a 20 Lb Propane Grill Tank or a screw in gas canister, the solution to the problem is the same .

1. Be sure you have enough gas in the tank or canister to maintain proper ignition.

2, If the above checks out OK. Turn the LP tank valve OFF or if you're using a screw-on canister
turn the gas valve OFF.

3. Disconnect the hose from the tank or unscrew and remove the gas canister.

4. Wait 5 minutes and reconnect the hose to the tank or reattach the canister to the gas valve.

5. Open the gas valve VERY, VERY SLOWLY (Slow Motion, slow). Once the valve is full open, light
the burner & turn it to HIGH. Did the burner light and does the flame height look correct?
If so, you solved the problem. Remember to always open the tank valve Very, Very Slowly.

if the above didn't solve the problem, you will either need to replace the Hose/Regulator Assembly or the Gas Valve/ Canister Holder. The Hose/Regulator Assembly you can pickup from any home center or hardware store that sell grills & accessories for about $30.00. If it's the Gas Valve/Canister Holder, you will have to purchase that from Weber or from Factory Appliance Parts http://www.appliancefactoryparts.com/gasgrillparts/brands/weber/q200.html Part # WEB4195 ($29.99) The adapter hose is also available there if you want to make it a one stop shop for $32.99

I hope ths helped you and thanks for choosing FixYa. Happy Grilling!!

Contact Weber. They have good customer service. A regulator should last "forever".

This sounds like a case of the OPD tank valve on the propane tank has locked up your regulator. In which case, turn the tank OFF and disconnect the hose from the tank. Wait 5 minutes and reconnect the hose. Now, turn the tank valve ON VERY, VERY SLOWLY (slow motion, slow). Once the valve is completely open, light the burner farthest from the tank first and turn it to the highest setting. If the flame appears to now be normal, light the remaining burners following the same procedure. If all burners have returned to normal height, you solved the problem. Always remember to turn the tank valve ON VERY, VERY SLOWLY.

If the above doesn't solve the problem, you may need to replace the regulator/hose assembly, which you can purchase from any home center or hardware store that sell gas grills and accessories. Take your old one with your for comparison purposes.

It could be the valve on the propane tank. where the hose screws in the valve on the inside it slides in.It's not opening all the way. un screw the hose screw it back in.

hello. Actually I think you are probably dealing with a new issue related to the newer safety device on the 20 pound tanks. Turn off the tank and unscrew it from the grill hose. Then screw it back on and s-l-o-w-l-y open up the valve. Then light the grill.
You should notice a markedly bigger flame now. Enjoy! J.

Your regulator could be bad or you propane tank is close to empty.

Remove connection to tank, reconnect, open valve slowly, when you open valve to fast the tank valve has a shutdown in it, it thinks something is wrong and shuts valve down. Always open tank valve slowly when using.
Also your tank valve could be sticking causing this problem, to fix replace tank.

I have used the Q-series for 2 years. The blue and low flame is absolutely normal. Weber's philiosophy is of avoiding flare ups when grilling for best taste. I love this grill - very easy to clean, uses less gas and makes great food.

some of the hoses weber has sent out have had prolems if you have already disconnected and reconnected the tank then you should call weber and get another hose