My Jenn air BBQ grill will not heat up all of
Couple things could be happening here. If you do exchanges, have you used more than one different propane tank since you've had this issue? This eliminates the possibility of a low tank pressure and a faulty tank connection.
Next you need to look over the burners and the propane flow tubing. Spiders LOVE the sweet smell of propane and make their webbing inside the piping that get's the propane up to the burners. At your flow valves/On/Off knobs you'll notice that the propane shoots from the valves into a pipe with an air gap to gain oxygen. Look in there to see if there's any webs. Also should be a gap were that piping meets the burners, so you need to look there too. Depending on the age of the grill, you need to look the burners over. Corrosion & rust can cause the flame/propane holes in the burners themselves to cake up and close up causing much less flaming/heating opportunity. Also depending how much you've used it, it could be grease/dripping/sauce caked up over them too so they may need to be detailed/cleaned. It's not a pretty job, but grill maintenance that should be done every spring. When the burners get caked is when it's really fun and you need to remove them and clean out the holes with toothpicks. Jenn Air makes quality products, but being a BBQ and outdoors, it's just as vulnerable as any other to elemental and use issues.
One last thing to check, some regulators (the disk shaped part right where the hose attaches to the tank) have another air mixture intake there with a screen on one side. Make sure there's no water in it and the opening is face down if you have one like that. Otherwise it's restricting the flow of the propane. I haven't seen one of these in a while, but they're still out there so check it too. Read More At : Q-BBQ Grill...