Oil Burner Won't Start After Tank Ran Dry and Refill—Possible Airlock or Water in Line?

Question

Hello
Some time ago I ran out of heating oil in the tank. I filled the tank but I can't start the burner. I press the red button on the burner and it turns on for a moment - it sucks in air (it makes a similar sound to a vacuum cleaner) and then goes silent and nothing happens. I will add that the tank was completely empty and is located on the roof, it is possible that water has flowed into the wires, but I am not sure. What could be the reason...

ArthurCC · Answer

First of all, specify the type of burner. is there a transfer? If there is, you must remove the torch and check for an igniting spark. If not, the transformer and magneto are to be checked.

DvD error · Answer

To be honest, I have no idea what type it is - I don't know much about it. The company is also not known as it is an Irish production, i.e. by the edge of the ass to break. I don't know if there is a transfer, because I can't determine it. The stove was working fine until the oil ran out, we poured in a new one and it won't start. Is it possible to have some air in it or something like that? Maybe after pouring new oil, I should do some procedures that I didn't know about?

ArthurCC · Answer

There are two wires going to the burner. One inlet and one outlet are usually marked. With proper operation of the pump, fuel should be poured out of the outlet into the tank. If it is difficult to determine whether there is an overflow in the tank itself, it is worth unscrewing the outlet at the burner and checking. It is also often the case that after pouring in fresh oil, the fuel must stand still, because there may be problems with smoking. With long supply lines, they can get air and the burner pump works too briefly for the fuel to reach it and the burner systems turn it off. In this case, remove the plug from the pump, connect the pump shortly and keep it turned on until fuel appears in the overflow line. It's worth checking the filters.

bruns · Answer

Exactly ! A clogged fuel pump cannot suck oil from the tank. The same happens in many diesel engines after air in the fuel system.

DvD error · Answer

That's what I thought as there is no oil flow through the filter. I located the pump, but I have no idea how to bleed it - should there be a screw? How is the vent marked?

igrzelczyk · Answer

It may as well be a collapsed fuel filter and pump filter, and the nozzle remains, which also does not always tolerate it well. What color is the housing of the burner? what is the oven called?

ArthurCC · Answer

The pump cannot be vented so easily by unscrewing the screw - it's not a radiator To bleed it, the fuel must be at a similar level as the pump. Pumps in oil burners have the power to vent themselves, but they have to work longer. Unfortunately, the control system, which sees the lack of a flame, does not allow it. The pump turns off and the fuel flows back again. If you don't want to play around with disconnecting the pump plug and connecting it directly, you have to pour some fuel into a small tank, pull out the suction pipe and insert it into this tank, lifting it to the level of the burner (even slightly above). Once the overflow is done, quickly put the hose back into the tank.

DvD error · Answer

I don't know if I did the right thing, but I found a small screw that I unscrewed. I heard something like air bleed, the tank with the filter was filled with oil and I thought everything was ok, but unfortunately not. After some time, I tightened the screw a little and it clicked. It gives off a flame but it smokes horribly at the same time. My whole room is covered in smoke...

bruns · Answer

It's hard to say what kind of screw it is. Maybe it was a breather or maybe a screw for adjusting the pressure or the amount of fuel, something similar to car carburettors.

Anonymous · Answer

Rather, pressure regulation, hence the smoking. Now, just screw the pressure sensor in place of the service screw and adjust the pressure according to the standard, but it's not that easy to adjust the intake air aperture without the "exhaust gas analyzer" equipment, it will be hard to set it just by eye, come on, I'm not saying it's impossible.
Before adjusting, I would start by cleaning or replacing the filters in most burners. The fuel filter is also in the pump housing. After such smoking, it would also be worth cleaning the optical flame sensor if it is there and it should be. And as for venting, I always try the burner several times (the red reset button at my friend's) until the effect has not happened yet that the burner did not start, unless the friend's pump is also dirty and it is possible, you need to dismantle and clean the pump, but if a colleague does not feel up to it, you know the service.

igrzelczyk · Answer

Write the name of the burner or furnace, it will explain how to set it, but when it comes to the accuracy of the setting, I agree with a colleague without an analyzer and experience, you will soon get a bucket of soot out of the furnace or you will have a good burn (sometimes after the initial adjustment by eye a deviation in co2 was about 30-40 percent, which resulted in a reduction in efficiency by about 30-40%, not to mention that the soot level was out of range).

Anonymous · Answer

I will add such a curiosity, the burner after removal, or rather the optical sensor is illuminated by, for example, a light bulb and the spark will not appear, sometimes some people replace the entire module or coil at once, but this is wrong operation the burner will not give a spark when the sensor is lit!

ArthurCC · Answer

Probably with the front cover completely removed... From my experience, I have never found that any AZ or MAN or any other burner had problems with firing illuminated with artificial lighting. I haven't tried it during the day

Anonymous · Answer

depends where the light comes from I know from experience that even with this cover the burner did not spark.

serwisant73 · Answer

Coming back to the topic - maybe the pump fell (seized). If you practiced it dry, there is such a possibility.

Anonymous · Answer

It seems to me if you can hear the noise of the fan and the pump is on the same axis, the pump is rather working, there is a gear pump there, not so easy to cover it!

davvid80 · Answer

Hello,
1. As for flame sensors, there are several types, e.g. to visible light or infrared.
2. The pump is mounted, as someone previously wrote, on the fan shaft. The torque is transmitted by the clutch

piurko2 · Answer

Hello users of this forum.
I'm going to jump on the topic and ask for a hint.
I have a Brotje 111 oil burner and want to connect it to a solid fuel stove. It draws fuel, lights up and after a while goes out and the controller lights up red. I wait for a moment until I hear a pop and fire it again and the same thing, it goes out.
What could be the reason, is it worth fixing?

neodym · Answer

Certainly worth repairing. Oil burners are very cheap to operate and service. All components are on Allegro. Check out this garden burner first. Run it in the open air and wiggle the air around a bit. Maybe it blows too much and the photocell does not see the flame? Or take a powerful light bulb and it illuminates the photocell immediately after ignition, trick it. And tell me if it's broken.

dziubek102 · Answer

Such little thoughts.....
To be honest, I am surprised when I read this. I will say that if the boy is singing something.. it's your fault. It was obvious that the boy does not know each other at all and you tell him about venting the pump without even pointing out where P and U are. Oil installations are vented on the filter with a manual oil pump and not by turning the pump. (what idea.. and he invented it?) The pump is able to vent only flexible hoses from the filter, max. Now it's just the service and adjustment of the burner, think what is written and whether it is helpful, not some out of context information about the pump, photoelement.

neodym · Answer

Yes, our fault, but the greater fault of the forum owner, then the owner of the server room, and finally the fault of cisco and the main dns

Anonymous · Answer

Yes ? With only 1m? I have an unusual burner because the installation itself vents about 4 meters or maybe 5 and for over 8 years, the burner is still the same, and the manufacturer did not even provide a manual pump for the entire installation. What's worse, the burner is about 2 meters higher than the OO mirror in the tank. And the service is just a call to set my combustion.

mariusz.lubicz · Answer

Then buy this exhaust gas analyzer on Allegro and you won't have to pay them anything anymore

wawrzeczko_t · Answer

... They should ban it ...

dziubek102 · Answer

In other words, such ideas should be stigmatized, which is why I wrote the above post.

mariusz.lubicz · Answer

I do it myself at my furnace and I'm doing better than many service. There are no secrets to operation. I have started the burner in the garden many times and it's not just one, because I have several of them.

adam0369 · Answer

Hello, I am not a specialist in this childishness, but I can write and maybe advise how I remove the failures of my furnace. My stove lights up and goes out after a second - there are three reasons: 1 - air in the fuel system (e.g. lack of fuel) - after pouring fuel, I have to vent the supply system including the filter (otherwise it will not catch!!!) after flooding the system with fuel (I do not have manual pump) 2 the fuel filter is dirty (it does not even allow water!!) _ clean, blow out, vent, 3 the photoelement in the burner itself is dirty. The main cause of the failure of the stove is poor quality fuel, dirty, with water, in the season the stove stands 2-3 times!!! this is how you look for the cheapest supplier. Greetings

dziubek102 · Answer

So good, example: according to the advice on the forum, I remove the burner, I go to the garden and start it, I assume that you know each other and I don't, the burner starts but was too close to the wall, the reflected flame flies to my face and hands, 3rd degree burns. Well, I followed your advice, but you didn't warn me of the danger. I think $10 million in damages will be bearable for you? ok the forum has rules but can you live with it?? If we write advice, let's take a correction on experience, especially since, for example, in the case of this post, the author writes that he doesn't know anything about it... Ps, would you like this burner to be fired by your girlfriend instructed over the phone while driving a car?

pablo1521 · Answer

But you fucking write.
The guest has air in the installation and that's it. And if he doesn't know what a return is, he probably won't be able to handle it himself.

dvd . just in case, look at the tank, there is a lever at the top of the tube connection. --- MUST BE VERTICAL

WHAT LONG BURNER PIPE? fuel?
Take pics of what you have

Oil Burner Won't Start After Tank Ran Dry and Refill—Possible Airlock or Water in Line?

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