Question about Coleman (5040B750) Patio Heater

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Charmglow tabletop heater: how do I remove the dome?

Flame burns yellow constantly. How do I access the air tube at the burner? Does the dome come off?

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First make sure you have propane. Low propane can cause this too. Presuming its not the easy fix, its probably spiders that have built a web in the venturi (air) tube.

Remove the screws attaching the screen/shield to the body and it can be lifted from the body without taking off the aluminum heat dispersing shield. Next remove the 4 screws holding the burner in place and you should be able to lift out the unit to clean of of the spider webs. High pressure water may or may not work. You may need to use something like a pipe cleaner.

Posted on May 26, 2009

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Burner lights and burns yellow flame


Lack of air causes it to burn yellow clean out burner air ports

Oct 11, 2016 | Endless Summer 153100 Open Flame Patio...

Tip

Gas flame burning yellow?


Does your grill or pool heater have a yellow flame instead of blue? If your propane tank is not just about to run empty, then you can probably thank little spiders.
When a gas burning appliance sits idle for a week or more outdoors, spiders like to build nests in the venturi tubes (that's the tube with the holes in it where the combustion air gets sucked in). This changes the way the combustion air mixes with the gas and causes the gas to not burn completely. The incomplete combustion is not very hot, and so the flame appears yellow. This is not efficient. It wastes gas, is too cool for grilling steak and creates soot residues. This is very common on gas grills (bottled propane or piped natural gas). It also happens to pool heaters.
Fortunately, the fix is easy, and you usually don't need to take anything apart. Get a piece of stiff nylon string from a weed-wacker, about 12 inches long. With the burner cool, push the string into any hole in the venturi tube and spin it by rolling it between your fingers. The spider nests are sticky (made from the same stuff as spider webs) and they usually adhere to the nylon string.
Not sure what the venture tube is? It's going to be between the valve and the burner. The valve shoots a stream of gas into the venture tube through a pinhole nozzle called an "orifice". You can do a Google image search for BURNER VENTURI TUBE to see lots of different types. Every gas burning appliance uses some form of venturi tube.
Good luck. Al K

on May 20, 2010 | Grilling

2 Answers

I have a Dayton hanging gas (propane) heater 3E838 series 1067A model z21116 when the heater ignites its like to much gas and blow out the side vents ????


sounds like the air to gas setting is wrong, not enough air intake. there should be an air adjuster near the burn box. where the gas goes into the burn box. fallow the gas line to find it. adjust it till it burns correct. there also should be a gas pressure adjuster to, it should be near the burner.

Dec 26, 2014 | Dayton Gas Furnace Heater

1 Answer

Pilot light burns too yellow and irritates eyes


When a pilot light turns yellowish and fumes heavily it is generally cuased by the flame not getting enough fresh oxygen. If you feel comfortable accessing your pilot light turn off the gas and allow it the heater to cool for 30 minutes. Next look for a small (1/16 diameter) hole in the side of the pilot. There may be a perminately attached metal strip in place covering it partially it this is for adjusting air flow and should not be bent or removed. Now take a bendy straw and gently blow through the hole and see if it dislodges a small bit of dust or hair. Remember gently any pressure over 30psi will damage your heaters componates. Next reassemble and relight the pilot. When it is warm and operational if it is still yellow and fuming call a repair man. Never attempt to adjust pressure or flow by yourself.

Jan 07, 2014 | Blue Flame Charmglow 30K BTU NG Vent Free ...

1 Answer

I have a new Atwood G6A-7 water heater. The pilot lights fine but gas flow, when it turns on, is so strong it will blow the pilot out. Certain times, it sounds and looks like a mini fire ball going


Clean burner tube with proper brush, such as long spring type for bar-b-Q burner tube that are available at most hardware stores, and make sure you have new burner tube aligned properly (straight on) with brass orifice on gas control. Then be sure to adjust air shutter for nice blue flame, with little orange at tip. Do not give so much air that flame roars or jumps off the end of the burner tube. Too many people think more air, less fuel, but actually, when flame roaring and jumping off end of tube, the heat passes through faster and it takes longer to heat the water inside the tank. Like I said, only enough air to have quiet, steady blue flame. If your not giving it enough air, you'll see dark soot on trailer above water heater, which indicates burning too rich, need more air, or perhaps pilot is partially plugged. Pilot flame should also be blue, not yellow/orange. Small air intake hole on side of fitting just before pilot tube can get spider web, or debris in it as well. Use air to blow that out or a piece of wire like a paper-clip to clean inside that hole.

Dec 12, 2012 | Atwood G6A-7 G6A7 Manual Pilot 6 Gallon RV...

1 Answer

Flame has become very yellow and lazy. I installed a new regulator, but didn't help.


try cleaning the burners sounds like they are blocked ,yellow and lazy is lack of air to burn

Dec 10, 2012 | Brinkmann Charmglow Stainless Steel LP...

1 Answer

Kenmore Water heater, Model # 153.339462, Pilot lights, burner burns for approx. 10 - 15 minutes then both go out. after which it is more difficult to light the pilot. I need ideas please


Clean combustion parts, clean air intake, get more air to water heater and see if problem continues.
Look at color of burner flame and pilot flame: if flame has yellow-and-orange instead of clear blue flame, then combustion parts need cleaning.

Pilot and burner problems can be caused by bad thermocouple, thermocouple not sitting in flame, weak pilot flame due to dirty tube or low gas pressure, air in gas line, no draft up vent, backdraft coming down vent, dirty combustion parts, clogged air intake, insufficient air, insufficient air quality, hot attic, bad gas control valve, etc.

Open following link for pdf resources, and illustrations for cleaning combustion parts, and some service manuals:
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

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Sep 03, 2011 | Water Heaters

1 Answer

ON MY ATWOOD WATERHEATER IT LIGHTS BUT PRODUCES A LOT OF SOOT AND DOES NOT SEEM TO FIRE UP LIKE IT SHOULD


You need to start by cleaning burner tube and pilot intake , sounds like spiders have probably spun a web in there. If flame is yellowish, it's not getting enough air. You can buy a barbecue burner brush, long and flexible, and run it through burner tube to clean out web, and if pilot is yellow as well, there is a small hole in side of fitting where it attaches up near burner that needs to be cleaned out with paper clip or even better, compressed air. After cleaning burner, adjust air shutter to get nice blue flame, with just a hint of yellow at tip. The idea there is to get blue flame, but not a roaring flame that is jumping off the burner. A spider web in there will usually allow propane through, but restricts air mixture, thus causing yellow flame (rich mixture) and soot to build up.

Nov 11, 2010 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Flame does not seem hot enough - too much yellow flame.


In a gas dryer, heat is provided by a gas heater that is controlled by an air shutter. The gas heater is generally the source of no-heat or drying problems. You can often correct such problems by adjusting the air shutter on the gas burner, which is located along the bottom of the dryer.

To adjust the shutter, take out the screws and remove the panel that covers the gas flame. Turn on the dryer so the flame is burning. If the flame has a deep blue color and you hear air whistling around the burner, the air/gas mixture is receiving too much air. If the flame has a yellow tip, the mixture is not receiving enough air. Turn the thumbscrew or loosen the two screws slightly to increase or decrease the flow of air to the burner. Keep turning until the flame is a light blue color, without any yellow, and the whistling stops.
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Jan 05, 2009 | Kenmore 63942 Dryer

2 Answers

Charmglow patio heater


Looks like the knob or the contacts are faulty.

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