Hi, hope someone can help. I have a nuway boxer oil fired burner. Yesterday I found the red trip switch activated. There is oil in the tank, the fan is operating, the electrodes are working but no flame appears. I disconnected the pipe that goes from the pump to the nozzle and when the burner tries to operate I get a few small spurts of oil coming out, but not much. Is it safe to assume that the pump is faulty.( Im thinking there should be a steady stream of fuel going to the nozzle) Incidentally the pump is a BFP21L3. :
oil fired burner not working
- Thread starter midnightwalker
- Start date
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All you can assume there is too little oil comming out of the pump!
Check any filters in oil line - If no oil entering pump none will come out.
Check to see if air lock in oil line or pump - again little will come out.
Pump coupling if damaged - little oil will come out.
Pump filter
etc.
Never assume then you don't replace parts unnecessarily.
Like the other poster mentioned. Check the filter cartridge (you do have a filter?). Check fine filter inside pump.
If all is clean then change nozzle first (3-5 quid) and if the clean oil is still running well to the pump (un-couple to check at hose) consider changing the solenoid (coil).
The solenoid "lifts" when the pump is up to pressure, letting oil escape very quickly to nozzle.
You really need pump pressure gauges to see what you pump is operating at!
If all is clean then change nozzle first (3-5 quid) and if the clean oil is still running well to the pump (un-couple to check at hose) consider changing the solenoid (coil).
The solenoid "lifts" when the pump is up to pressure, letting oil escape very quickly to nozzle.
You really need pump pressure gauges to see what you pump is operating at!
Firstly thanks for getting back.. Theres a good supply of oil to the pump.ive removed the small filter within pump-it was slightly dirty. Cleaned it -still faulty. The solenoid is definitely energising - I can feel it.
Can the pump be stripped - by a novice.? or is there anything else you can suggest?
Regards
Can the pump be stripped - by a novice.? or is there anything else you can suggest?
Regards
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Easily it's getting it back together properly that is the problem - replace it IF faulty.
Pump coupling as above post.
What is the voltage on selonoid?
As Mike said pressure guage is needed to check pump pressure. Vacuum guage could be handy also.
P
paulybaby
its a bit dodgy dsconnecting pipe twixt pump and nozzle.on a working pump you could get 100psi facefull of oil 
If you end up needing a pump, try http://www.abgo.co.uk/index.php?pag...ategory_id=16&option=com_virtuemart&Itemid=26
They are quite ok for prices. If you walk into a your local plumber's merchant they will burn on price.
You will get new coil with it, I have never tried to repair an oil burner pump.
They are quite ok for prices. If you walk into a your local plumber's merchant they will burn on price.
You will get new coil with it, I have never tried to repair an oil burner pump.
Firstly thanks Mike for recommending where to get pump. it was waiting for me when I got back off holidays.
Ive fitted it however the flame seems very large and the burner seems noisier than it was before - Do I have to make an adjustment to the pump?
All suggestions appreciated
Ive fitted it however the flame seems very large and the burner seems noisier than it was before - Do I have to make an adjustment to the pump?
All suggestions appreciated
W
wilhelm
you,ll need to check pump pressure and combustion test to be politically correct...
Ive noticed that new pumps (danfoss) are set to 150psi new.
depends on nwhat nozzle you got etc
good luck.
Ive noticed that new pumps (danfoss) are set to 150psi new.
depends on nwhat nozzle you got etc
good luck.
Now you have a flame you will need to set pump pressure and possibly change nozzle and adjust the combustion setting.
You will require the following,
Oil pressure gauge and manifold
Smoke pump and filter paper
A flue gas analyzer/ combustion analyzer
Oh and OFTEC registration
You could call on the service of a qualified OFTEC engineer.
Or you can run it as it is, it will only cost you a fortune in oil and possibly damage your boiler.
ps.
Often wonder why I had to pass all those dam assessment, such as basic plumbing, advanced plumbing, gas ,oil, G3 Part"p"ect. as for the tools I buy do I really need them
Every penny pinching Diy'er assume to know how not to do it right
You will require the following,
Oil pressure gauge and manifold
Smoke pump and filter paper
A flue gas analyzer/ combustion analyzer
Oh and OFTEC registration
You could call on the service of a qualified OFTEC engineer.
Or you can run it as it is, it will only cost you a fortune in oil and possibly damage your boiler.
ps.
Often wonder why I had to pass all those dam assessment, such as basic plumbing, advanced plumbing, gas ,oil, G3 Part"p"ect. as for the tools I buy do I really need them
Every penny pinching Diy'er assume to know how not to do it right
Firstly ive got my burner working , so thanks to you all. However I am mystified why Gremlin16 has got his pointy head on.
I am an electronics engineer by trade. By using basic fault finding I traced the problem to my fuel pump. I then came on this site to see if there was anything I could do before replacing the pump, and EVERYONE to a man was helpful. However when I asked about adjusting the pump pressure Gremlin16 starts yakking on like Victor Meldrew about his qualifications and experience., and that I should get a qualified plummer.
Anyway using my limited knowledge I adjusted my flame til I thought it looked similar to the flame on my mother-in-laws burner and guess what ? When I got a guy round to service it he only had to make a small adjustment. So I didnt do that bad a job. ( I didn't have filter paper, pressure guage, analyser blah blah blah)
For everyone who was helpful thanks a million, I appreciate your help. As for Gremlin16 --keep taking the tablets. Why go on a DIY site if you don't advocate DIY? YOU ARE A BALLOON
I am an electronics engineer by trade. By using basic fault finding I traced the problem to my fuel pump. I then came on this site to see if there was anything I could do before replacing the pump, and EVERYONE to a man was helpful. However when I asked about adjusting the pump pressure Gremlin16 starts yakking on like Victor Meldrew about his qualifications and experience., and that I should get a qualified plummer.
Anyway using my limited knowledge I adjusted my flame til I thought it looked similar to the flame on my mother-in-laws burner and guess what ? When I got a guy round to service it he only had to make a small adjustment. So I didnt do that bad a job. ( I didn't have filter paper, pressure guage, analyser blah blah blah)
For everyone who was helpful thanks a million, I appreciate your help. As for Gremlin16 --keep taking the tablets. Why go on a DIY site if you don't advocate DIY? YOU ARE A BALLOON
But still needed adjustment then.
Bet the service engineer had
Or did he use a multi meter too
Yeah, but its not the big deal you were making it out to be . like I said Balloon
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