Question about Coleman Propane Grill Stove 9921-700
My 2 burner propane coleman stove is burning yellow orange and a black soot like coating is developing on my pans. The black coating is so thick that I can't clean it. It smears all over everything and won't come off. What can I do to fix this problem?
You have to adjust the air intake holes at the valves. this will give you a blue flame.
Posted on Aug 19, 2008
A yellow, sooty flame indicates either too much fuel or too little air. Too much fuel can be caused by a faulty pressure regulator that is leaky or stuck open, in which case a new regulator from Coleman would be needed. Too little air is caused by restricted air ports by the individual valves where the gas jets feed streams of gas to the burners. Potentially, these areas could get clogged by spider webs or insect bodies and should be cleaned of foreign matter.
Are you running the stove at high altitude, for example, over 3,000 ft above sea level? Less air at this altitude will result in a richer, yellow flame. If the air ports can be opened wider, this may correct the condition; if the air ports are already fully open, the only thing one can do is turn the gas volume down and make do with a smaller flame. In the latter case it would be a design limitation of that model of stove and probably not correctable by the user.
Since you seem to imply that both burners are exhibiting this problem, I would suspect a regulator problem or need for re-tuning for high altitude operation.
Posted on Jan 28, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
May 04, 2016 | Coleman Grilling
Mar 29, 2011 | Coleman 9928A50 Propane Grill
Jun 22, 2010 | Coleman Gas Grill Stove
May 28, 2010 | Coleman Propane Grill Stove 9921-700
Sep 11, 2009 | Coleman Grilling
Jul 11, 2009 | Coleman 2 Burner Dual Fuel 424-700G Grill
Jan 10, 2009 | Coleman Propane Grill Stove 9921-700
Sep 06, 2008 | Coleman Propane Grill Stove 9921-700
Aug 19, 2008 | Coleman Gas Grill Stove
2,022 people viewed this question
Usually answered in minutes!