I sent Weber a request for a solution to my low heating problem. Here is their answer, but I'm not sure I understand what the difference will be between a 20# tank and my 37gal tank on the MH.Gas company says it has the 11# (I believe that was the number) neded for correct pressure.
Dear Mr. Sikes,
Thank you for contacting Weber. Your Q 200 is not manufactured to be used with an RV propane system and this is the reason it is not working properly. The correct propane usage is with a small disposable tank, or a 20 lb tank with adapter hose. Anything other than these 2 will cause problems with the gas flow. You should be cleaning your burner tube once a year, following the annual maintenance instructions in the back of the manual. Once again, the problem is probably that you have the grill hook-up to an improper gas source.
If you have additional questions or comments, please do not hesitate to contact us. If replying via email, please leave this message intact as it will help us to respond faster. Our customer service hot line is open 7 days a week 7:00 am -11:00 pm CST.
That's probably their standard answer when you use a Weber from anything other than their 2 approved sources noted in their email. Having said that, I disagree with them as thousands of folks run Webers off the low pressure quick connects commonly found on trailers, many on this forum. In my case, I did not remove my regulator on my Weber 200 as I take the gas (high pressure) of one of my 20 lb tanks using the Extend A Flow kit. Been working great now for about 8 years. The only maint I've done over the years is to clean the burner tube to make sure none of the little holes are clogged as they tend to do.
BTW, did you try the Weber with one of those small disposable propane bottles? I recommend you do. If it does not work properly with the small bottle, you've got something wrong with your Weber. You'll have to put the regulator back on of course.
I saw this on another post a while back. It is in regards to the Weber 200.
I'm sorry to hear your grill is giving you problems. There could be several issues that could cause this sort of problem. Let's try to fix the problem with the follow suggestions. Do you preheat the grill with the lid up or down? If you grill with the lid down there is a possibility that you have inadvertently triggered the safety device in the adapter hose. This safety device is designed to detect leaks. If the grill is leaking, it will restrict gas flow to prevent a fire. When the gas is restricted, the grill will only reach about 250 degrees. This safety device can be inadvertently triggered if the grill is turned on too quickly.
To reset the gas safety device:
Open the barbecue lid.
1. Close the LP tank valve.
2. Turn your burner control knob to the OFF position.
3. Wait at least 5 minutes if the barbecue had been lit, then
4. Disconnect the gas source
5. Turn your burner control knob to the HIGH position.
6. Wait at least 2 minutes, and then turn the burner control knob to the OFF position.
7. Re-connect the gas source
The grill was designed for the small, disposable tanks. If you choose to use an adapter hose for the larger propane tanks, there are some simple rules to follow to ensure that the grill works properly. Please follow this procedure every time you turn the grill on and off.
Re-lighting the barbecue:
1. Open the barbecue lid.
2. Open the LP tank valve all the way and wait 1 minute.
3. With the lid open, turn the burner control knob to the HIGH position.
4. Ignite the grill by pushing the crossover ignition button.
5. Close the barbecue lid.
6. The barbecue should reach 500 to 550 degrees in 10-15 minutes.
When you are done grilling:
1. Turn all burner control knobs to the OFF position
2. Turn off the LP tank valve last. The tank should be turned off after EVERY grill use.
I also had issues with a Weber Q220 and the adapter hose (6501) installed on a 20lb cylinder... I fortunately called product support after unscrewing the schrader valve till it is able to depress the pin a bit without leaking when disconnecting... Seems the regulator orfice pin is not long enough to open the schrader valve on the hose which you can check by inserting a bambo skewer and depressing the valve assuring the flow check valve is not restricting flow... Weber declined me a transfer to an actual engineer so we did a standard customer service flow chart reading and a suggested return of the hose and fixed nothing...