My weber gas grill will not heat up past 300F
I just experienced the same exact problem ! I just bought a brand new Weber E-310 a 3 burner grill.
After I seasoned it up with cooking oil,I turned all the burners to high, opened the tank and clicked electrnic button several times , the grill was on then I went inside, I came out about an half-hour later and it was saying around 275 degrees..
I looked into my manual and there is a gas limit control valve that shuts down gas flow, when it thinks there is too much gas flow.
Turn the propane gas knob to off
Turn the gas grill knobs to Off.
Click the igniter several times to clear out any gas.
Then unscrew the regulator from the tank,( I then blew into the tank hole and regulator),
Screw back on the regulator to the propane tank.
I then clicked igniter again couple of times.
Now open your propane tank.
Then turn on front burner while clicking igniter, this will lite 1st burner.
Then turn 2nd burner on low then to high.
And if you have 3rd burner or more, turn low then to high!
John I did this and my grill went to 600 plus in a few minutes!!
The problem was turning the gas grill knobs on first then opening the tank then lighting...
You have to open propane tank with knobs off, THEN AS SOON AS YOU TURN ON 1ST KNOB, YOU MUST IGNITE ... Read More At : Stainless Steel Gas Grill...