Well I have a 44 and I am not impressed..............only one burner works the other comes on but will not stay lit. Did what th factory suggested but still does work correctly. The said it is the valve in the exchange tanks I use that is causing the problem not enough flow. They said not to use "Blue Rino" or "Ameri". What? Now I have to go buy find new Tank? Sounds Like BS.
Ok, had the exact same problem on my PS4400 from Sam's Club. Here is what I found. The burners do not need much gas flow to operate. So, from a cold start with the hose disconnected it IS possible to trip their regulator excess flow valve on lighting. Try the following:
1. Disconnect and let sit for 5 minutes. It can take that long for the regulator to reset!! Must be a bleed off type thing.
2. Reconnect with tank and burners off.
3. Open the tank valve slowly about 1/8-1/4 turn at the most.
4. Light a burner on high. Watch it for a minute or so. Then light the other burner.
5. Open the tank valve about a full turn. Both of my burners will run together on high on less than a full turn.
6. Should be able to run one or both burners on low once lit on high.
The air shutter on these PS4400s are difficult to adjust because of the configuration. The length of the wires on the piezo igniters will prevent yo from removing the burner mounting screws and sliding them forward inside the smoker. So you have to remove the inner shield just behind the knobs that covers the end of the tubes and slide it towards the rear of the smoker. Now you can see the shutter and its phillips screw. From experience the shutter will only have about an 1/8" opening for the burner to run. If there is too much air the flames will be pushed away from the burner tube and blown out. Especially on low. Mine run well with the tips of the flames yellow and the shutter open to just before the air flow pushes the flame away from the tube. And that is where the factory had them set. I messed with them thinking they were set wrong. Should have realized that after using the smoker last month, then both burners working strange this month that it was a supply problem.
Now, I did purchase 2 spare burners to put in a drawer for down the road in case these rust out or have a problem. The burners with the air shutter and an igniter electrode already mounted were quoted to me at $10.00 each. Will see what I get in the mail next week. At $10.00 a burner it is a good deal. If they do have electrodes mounted, it is a great deal!!
J.B.