Kitchen Gas Appliances - Yellow flame in LP oven
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Shelley
11-15-05, 06:46 PM
I have a ten year old Magic Chef LP stove/oven. The oven was not ingniting but I confirmed the ignitor worked (it glowed). I thought I narrowed the problem down to the oven valve and replaced it. It now ignites but the flame is yellow and spreads soot all over my oven. I tried adjusting the shutter at the bottom of the tube that sits on the valve but it is as wide open as it goes...still yellow flame. Do I need a new pressure regulator? Or is there an adjustment to be made on the valve itself? Please help! I have been working on this for months!
Shelley
Shelley
mbk3
11-15-05, 07:29 PM
Hopefully you reinstalled the orifice hood. If you did, may not have screwed down far enough to adjust gas flow. I would recommend you do not use oven and call someone familar with gas burner flames.
Sharp Advice
11-16-05, 06:24 AM
Oven Burner Causing Sooting Possible Conditions:
Hello Shelley and Welcome to the Do It Yourself Web Site and my Gas Appliances topic.
Soot is created when all the fuel is not burnt or burned correctly. Unburned fuel which is left creates the sooting condition. Thus, to solve the sooting condition and the problem, the cause for the soot needs to be determined.
Most common cause for soot is an improperly adjusted air shutter on the burners extension tube. At the base of this tube from the burner is a long tube. The tube end is on the gas valve. At the base end of the tube is an adjustable shutter. That shutter may be clogged with lint and or dust. Clean that area if any is present.
The shutter should be fully opened or at least 2/3rds partially opened. Enough opened so the burner flames do not have any "Yellow" in the flames. No yellow is indicates complete combustion and no soot will be produced.
Another reason for sooting, among others, is using any type of foil on the racks and or the lower cover plate to catch over spills. Foil restricts the normal upwards air flow and cust off the air to the burner. Both air flow and air restriction cause the burner flames to burn yellowish and create soot.
Yet another reason and cause for sooting is a restricted exhaust vent out of the ovens flue. Such restriction may be inside the ovens exhaust vent opening or the outside vent opening. Inside caused by debris buildup and or outside by foil used to line the stove top to keep it clean or some item too close to the exhaust vent, etc.
This condition applies to your oven:
Still another could be an over gassed burner. Meaning the burner flames are too large for the area the burner is in. An overgassed condition may be caused by an incorrected burner gas setting at the orifice. Orifice opened too much allowing too much gas into the burner.
Flames should be not more than one inch from the outter edges of the flame spreader. Inwards 1 and 1/2 inches to 2 inches inwards from the edges of flame spreader is ideal.
If the flames appear yellow or have yellowed tips, adjust the air shutter on the burner just above the orifice to allow slightly more air to enter. But not so much to cause flames to lift off of the burner and blow outwards with force. Once the correct orifice opening is set and the air shutter is set....your set...job done...:)
Kindly use the reply button to add any additional information which may help further to understand the condition or problem. Or ask additional questions, once the above is checked out and repairs are attempted or made.
Web Site Host, Forums Monitor, Gas Appliances Topic Moderator & Multiple Forums Moderator. Energy Conservation Consultant & Natural Gas Appliance Diagnostics Technician.
Range-Stove-Oven-Broiler Basic Help Information & Manufacturers Web Site Links: http://forum.doityourself.com/showthread.php?t=159808
Hello Shelley and Welcome to the Do It Yourself Web Site and my Gas Appliances topic.
Soot is created when all the fuel is not burnt or burned correctly. Unburned fuel which is left creates the sooting condition. Thus, to solve the sooting condition and the problem, the cause for the soot needs to be determined.
Most common cause for soot is an improperly adjusted air shutter on the burners extension tube. At the base of this tube from the burner is a long tube. The tube end is on the gas valve. At the base end of the tube is an adjustable shutter. That shutter may be clogged with lint and or dust. Clean that area if any is present.
The shutter should be fully opened or at least 2/3rds partially opened. Enough opened so the burner flames do not have any "Yellow" in the flames. No yellow is indicates complete combustion and no soot will be produced.
Another reason for sooting, among others, is using any type of foil on the racks and or the lower cover plate to catch over spills. Foil restricts the normal upwards air flow and cust off the air to the burner. Both air flow and air restriction cause the burner flames to burn yellowish and create soot.
Yet another reason and cause for sooting is a restricted exhaust vent out of the ovens flue. Such restriction may be inside the ovens exhaust vent opening or the outside vent opening. Inside caused by debris buildup and or outside by foil used to line the stove top to keep it clean or some item too close to the exhaust vent, etc.
This condition applies to your oven:
Still another could be an over gassed burner. Meaning the burner flames are too large for the area the burner is in. An overgassed condition may be caused by an incorrected burner gas setting at the orifice. Orifice opened too much allowing too much gas into the burner.
Flames should be not more than one inch from the outter edges of the flame spreader. Inwards 1 and 1/2 inches to 2 inches inwards from the edges of flame spreader is ideal.
If the flames appear yellow or have yellowed tips, adjust the air shutter on the burner just above the orifice to allow slightly more air to enter. But not so much to cause flames to lift off of the burner and blow outwards with force. Once the correct orifice opening is set and the air shutter is set....your set...job done...:)
Kindly use the reply button to add any additional information which may help further to understand the condition or problem. Or ask additional questions, once the above is checked out and repairs are attempted or made.
Web Site Host, Forums Monitor, Gas Appliances Topic Moderator & Multiple Forums Moderator. Energy Conservation Consultant & Natural Gas Appliance Diagnostics Technician.
Range-Stove-Oven-Broiler Basic Help Information & Manufacturers Web Site Links: http://forum.doityourself.com/showthread.php?t=159808