Hello, all. Looking for suggestions to help get my Weber Genesis E-330 (purchased new in 2013) grill back up and running. Recently, it began heating to no higher than 250 degrees. I took all of the removable parts out and gave them and the grill interior a good cleaning, including the burner tubes. I brushed the tubes vertically instead of horizontally, which I later learned was the wrong way. None of this helped, so I purchased new replacement burner tubes and an ignition kit, since I'd long ago lost my battery spark button cap. I'm still waiting on the new sear tube, but after the other replacements, the grill heated up to over 400 straight away. Next day, I tried it again and was back down to 250. Did some research and learned about the regulator bypass issue. So, I followed the steps to ensure the burner knobs (including side burner) were all off, lid open, then turn on propane tank. Then, turning burners on from left to right. Back to 400 degrees. So, later that day, ready to cook dinner, back down to 250. Tried swapping through three different propane tanks. Used the soapy water to look for a leak, but found none. Can't see how how high the flames go during daylight, so I took a photo (below) after dark. It did seem like the times the grill rose to 400, the initial "whoosh" ignition sound was more pronounced. At 250, turning the burner knob does not change the flame level much at all. From all I've read, this does seem to be a bypass problem, but following the recommended lighting sequence has only worked twice. Thanks in advance for any thoughts.
