My Q 120 grill will not produce a high enough flame with hose adapter for 20 pound lp tank , works fine with small tanks. I have had problem for several years. Have replaced adapter hose and regulator.

blue flame? if flame is not blue, then air gap needs adjusting. if blue flame and burner control is on high, then could be your regulator. (assuming tank if full)

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!!

If you are using a 20Lb LP Gas Tank, rather than hard piped to the grill or you're using Natural Ga, here in may lie the problem. If it is Natural Gas, was the grill converted or ordered for Natural Gas? If not, that's why it' not heating well.

If you're using a 20Lb grill tank, do the following:

1. Turn the Propane Tank Valve OFF and disconnect the hose from the tank.

2.Wait 5 minutes and reconnect the hose to the tank. Open the tank valve VERY, VERY SLOWLY (Slow motion, slow).

3. Once the valve is fully open, light the burner farthest from the tank first and turn the control knob to HIGH. Does the flame height look correct for being on HIGH? If so, light the remaining burners the same way, Do all the flame hieghts look correct? If co, close the lid and allow the grill to preheat for at least 20 minutes. Did the grill thermometer go higher that 200 degrees F. If so, you solved the problem. Always remember to turn the tank valve ON very, very slowly.

If that did not solve the problem, the thermometer may be incorrect/faulty. I had this happen myself, with a new grill. To test it, invest $5.00 in an Oven Thermometer, like you use in a regular oven, It sits on the oven shelf. But, in this case it will sit on the center of the grill's cooking grates.

Light the grill and preheat it for 20 minutes. Loo k at the grill thermometer and then lift the hood and look at the oven thermometer. The oven thermometer may be as much as 200 degrees higher. That's because it's actually reading the temperature at cooking level, not up in the air, where the grill thermometer is.

I never replaced my grill thermometer. I continue to use the inexpensive oven thermometer, because it's giving me the actual temperature, at the level I'm grilling at. And I, do a lot of grilling.

Hope this helped you troubleshoot and solve the problem. Pleas let me know and Happy Grilling.

No that is not normal and the issue is regulator related. Before you head out to buy parts, try solving the problem this way. Turn the LP Tank Valve OFF. Disconnect the hose from the tank and wait 5 minutes. Them reconnect the hose to the tank and turn the Tank Valve ON Very, Very Slowly (Slow motion, slow). Once the tank valve is fully open, light the burner and turn it to high. Has the flame height returned to normal? Is so, you solved the problem. If it hasn't you will need to replace the grill hose/regulator assembly. You can purchase one at any home center or hardware store that sells gas grills and accessories. Be sure to take your old one with you for comparison purposes.

Hope this helped you to solve the problem. Happy Grilling!!

You're right. The regulator is not letting enough gas through, but there s a solution. Turn the tank valve OFF and disconnect the grill hose from the tank. Wait 5 minutes and reconnect the hose to the tank. Turn the tank valve on VERY, VERY, SLOWLY (slow motion slow). until it is completely open. Turn on and light the burner that's farthest from the tank and turn to the highest setting. Are the flames on that burner the way they should be? If so, continue to light any remaining burners following the same procedure. If all burners now have high flames when set to high, you've solved the problem. If it didn't solve the problem, do the first part of the procedure over again. If that still fails to produce higher flames, you will need to replace the Hose/Regulator Assembly. You can find them at any home improvement or hardware store that sells grills. Take your old one with you for comparison.

Hope this helped and Happy Grilling!

Turn the tank off. Disconnect the grill hose from the tank. Wait 5 minutes and reconnect the hose to the tank. Turn the LP tank valve on VERY, VERY SLOWLY until it's fully open. Now, light each burner one at a time and turn it up to the highest setting. If that didn't solve the problem, repeat the previously listed steps.

If after the second attempt the burners still only maintain a low flame, you will need to replace the grill hose/regulator.

Hope this solved your problem and Happy Grilling!

Turn off your LP gas Tank. Disconnect the hose from the tank. Wait 5 minutes and reattach the hose to the tank. Turn the tank valve on very very slowly, until it's all the way ON. Now, try lighting your burners one at a time and the flame height should be back to normal. Just remember to turn the tank valve on very very slowly each time, after you have turned the tank valve off.

It that didn't solve your problem, your gas tank is probably empty. If thats the case, be sure you turn the filled or new tank on very very slowly.

Let me know if this helped get you back to grilling.

Rich

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.

Hello. Are you frustrated because your gas grill doesn't get hot enough lately. The problem you are having indicates that you have to go through a procedure called "RESETTING THE REGULATOR". Follow these easy steps:

1. Turn the burners on for one full minute and then off.

2. Next, remove the regulator and the hose from the tank.

3. Then reconnect the tank to the regulator and hose.

4. And very slowly open the tank.

5. Last step is to fire up the burners and start cooking with you new hot flame.

The problem began the first time you opened the valve on the tank too quickly. In the future, always turn the tank valve on s-l-o-w-l-y to prevent this problem.. Joe

Hi Lyon,
Yeah, it's the regulator. Fortunately, they're cheap and easy to replace!

You can look on line for part number 80012. Or you can remove yours and take it to Home Depot or Lowe's in the outdoor cooking area and match up a replacement. <--- they're all the same... just make sure the compression fitting (the brass end) is the same size.

The only other thing I could recommend is this... Turn the LP bottle completely off. Then completely remove the big plastic knurled knob from the tank. Now replace the knob back onto the tank (all the way and make sure it's tight). Then S L O W L Y turn the gas back on. Now try your pit. If you get the same flame, it's the regulator. If you get full flame, you just reset the safety device inside the tank.

I'm betting regulator. Good luck and happy cookin'!

SG