Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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Coleman space heather,when burners goes on it blow's out

Pilot light on then it makes a strong pouf sound like to much gas comes in and the explosion blows off the fire.

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It sound like the pilot is too small which would make the pouf sound pilot could be blocked , it should light with a wow wohumph
sounds silly but it the best way to say it or the burner lights smooth

Posted on Feb 07, 2009

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My furnace keeps making an explosion when it ignites


The amount of gas buildup is too great. Make sure the burner ports are clear right next to the pilot light area. - run a small wire into the holes to make sure they are clear then make sure the pilot light is burning into the area next to the burner. A bit of whoosh is to be expected but if it becomes too great it will blow the pilot light out. Sears wall furnaces are prone to this the burners have to be kept clean

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The gas valve is not lifting hence no gas flow , check pressure switch if fitted jump out thermostat see if it lights ,

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Frigidaire GLG=F366asd stove igniter problems and solutions . ... on the element lights up the smell of gas is real strong and then it lights and sounds like an explosion.


Where is the problem -- in the oven burner or a stovetop burner?
If something got spilled on a burner ring and clogged the small holes, especially near the igniter, the burner will be slow to light. A stiff wire (small enough to fit) can be used to clean out the holes.

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Pentair minimax nt explosive ignition


Problem is an obstructed gas oriface. The burners light from the burner closest to the pilot assembly out like a dominoe effect. The explosion is because the gas has to make its way over to the pilot from a further burner thus filling the firebox full of gas before it ignites. This blockage is most commonly from a spider web inside the oriface itself. Pull the burner tray, remove the orifaces from the tray and look through each one cleaning them out with a toothpick from the backside. The orifaces should be threaded on the gas line coming off the gas valve (looks like a silver box inside the front panel)

Feb 16, 2012 | Pentair Minimax NT Heater

2 Answers

Kozy world propane wall heater pilot will not light


This can be caused by several things:

1. The inline gas valve running to the the heater is OFF. Turn the valve ON.

2. The gas control knob on the heater is not exactly in the PILOT position. Unless the knob bottoms
out and you feel strong pressure (other than spring pressure) pushing back at you. It's not exactly
in the PILOT Position. Once the pilot lights, hold the control knob in for 30 seconds to 60 seconds
to allow the Thermocouple to full heat.

3. The pilot is dirty and needs to be cleaned, as do the burners.*

4. The LP Gas Tank is empty or to low to maintain te proper gas pressure.

* Here is a link to a demonstration on how to properly clean the pilot & burners.
http://www.desatech.com/techDocs/Cleaning%20Demonstrations.pdf

I hope this helps you to troubleshoot & solve the problem. Thanks for choosing FixYa.

Sep 23, 2011 | The Companion Group Kozy World Portable...

1 Answer

I have a few issues with an old probably dinosaur Coleman Presidential III 7995a-856 Heating unit. I've had 3 different repairmen look at it and they're clueless. The main pilot will light and stay lit...


if the pilot is clean and and strong then this should play on to the thermocouple , i take it you have changed the thermocouple , and the connection is good at the gas valve , then if this going out could be 1, powerunit on gas valve not holding at thermocouple connection

2. Hole in heatexchanger blowing out pilot when blower comes on

I take it the pilot stays on untill fan comes on and keeps going out , I would think about not putting any more money in to this and get new if sounds as the heater has had its day ,

Dec 17, 2010 | Coleman Heating & Cooling

1 Answer

My pilot light ignites but when you turn the knob to light the burner it goes out?


Your pilot generator may be the cause. They tend to get weak and will hold the pilot but won't be strong enough to operate the gas valve solenoid. All space heaters have some sort of thermocouple device in the pilot that hold the gas open as long as the pilot is lit. Some simply hold the gas valve open while others called millivolt valves use a pilot generator to operate the solenoid. Another type of heater is an ODS type. This system has a oxygen depletion pilot safety feature. When oxygen gets low the pilot shuts down the gas. If this is what you have then all you need to do is blow the dust out the pilot and it should stay on.

Dec 05, 2010 | Procom ML300HGA Heater

1 Answer

My patio mushroom heater lights up ok but keeps going out by itself after about 5 to 10 minutes and then can be started again inatantainiously by starting pilot light and away you go until it goes out...


Hello,
Here's a few things to check. When you light the pilot, is it a strong blue pilot flame, a weak blue flame or a lazy yellow flame? Is it heating the thermocouple enough to make it red hot after a few minutes? If the pilot is small blue or lazy yellow flame, it may be dirty and need cleaned. When the burner lights, the weak pilot flame may diminish causing the thermocouple to cool off enough to shut down the main burner. Clean the dirty pilot orifice by using a can of compressed air with attached straw. (The same canned air you use to clean computer keyboards) Blow it into the pilot assembly where the pilot flame burns out from and blow thru the air holes on the side, if applicable. You might also check the thermocouple itself to make sure the tip is not partially burn't off. It should be a smooth, rounded tip. Replace the thermocouple if cleaning the pilot orifice doesn't solve the problem. Douglas

Aug 05, 2010 | Coleman (5040B750) Patio Heater

1 Answer

The pilot light will not stay lit to light the heater.


The power pile (pilot generator) is defective. It produces a milivolt signal to ensure to keep the gas valve open. If it goes bad, the valve thinks the pilot is out, even when you are holding the button down, so when you release the button, it shuts the gas off to prevent excess gas buildup and a possible explosion.

Sep 10, 2009 | Coleman (5040B750) Patio Heater

1 Answer

Oven has small explosion igniting and going off. says tj


A few years back I helped a neighbor with this same problem in a forced air, gas fired, "horizontal" furnace in his attic.

After having him cycle the thermostat a couple dozen times while I watched through the opening in the side of the furnace, I finally figured out what was happening.

First, there were about 6 cast iron burners [about 14 inches long with two rows of gas holes along the length]. These burners were parallel to each other and oriented perpendicular to the long axis of the furnace.

The gas was fed to the ends of the burners with a pipe manifold. The standing pilot light was at the center between burners 3 and 4. Due to the spacing distance between the burners, the pilot light was too far from even burners 3 and 4, the flame could not "jump" to ignite them, or any of the other burners. The manufacturer had installed a thin sheet metal "tent" which ran from the gas entrance end of burner 1 to burner 6, and was about 2 inches above the burner, AND the pilot light.

The standing pilot was on all the time. When the gas control valve turned on, gas began to come out of all the burners at the same time. Naturally it came out of the gas supply manifold ends of all the burners.

The "tent" captured that gas coming from the burners and "filled" up to over the pilot light which ignited the gas at that point, and the flame would propagate along the tent to ignite the gas coming out of all of the burners.

In my neighbors case, the tent had somehow become dislodged so that it did not cover all of the burner ends. For those burners which it did cover [including the pilot light] it caused the burners to light properly.

For those burners who's ends were not covered, and who's gas could not be captured, they would NOT ignite simultaneously with the others.

As these burners WERE feeding gas into the combustion chamber, the gas "envelope" would spread until it reached the nearest flame ignition source, at which time the entire "bubble" of gas would ignite with a minor boom [actually a low energy explosion]. Flame would momentarily shoot out of the burner chamber opening, and from that point the furnace would operate normally until the next restart cycle.

Although there could be several causes, I suspect that the symptoms you describe are the result of DELAYED IGNITION of some or all of the main burners.

IF this is the problem, then the solution is to clean all the burners [including the burner outlet holes in the ignition ends of the burners], clean out the burner compartment, AND properly adjust the orientation of whatever system [you have to evaluate how it works from analysis of YOUR furnace] your furnace has to ensure all burners ignite as close to the same time as possible.

When operating properly, the ignition should be a smooth transition, burner by burner, from the pilot to the farthest burners. In other words. the ignition will "flow" from the pilot outward to each adjacent burner until the farthermost ends ignite last. This usually doesn't take more than one or two seconds at the most.

Unless you are an experienced handyman, and understand this analysis and instructions, I strongly suggest that you engage the services of a professional furnace technician.

Feb 13, 2009 | Imperial Commercial Cooking Equipment...

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