Question about Heating & Cooling

1 Answer

My oil fired boiler wont stay fired i cleaned it out it will run for about 30seconds then shut

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 3,287 Answers

This can be a result of several things. The most common problem is the photo sensor. If there is a flame, and the photo sensor can't detect it - the furnace will shut down. If the furnace has run dirty and sooty - there's probably black soot covering the sensor, blocking the light of the flame. Remove, wipe the lens, and reassemble. Try for ignition again. Keep in mind, after three unsuccessful starts, the primary control will shut down in lock out mode. This is to prevent an additional start as the chamber is probably soaked with heating oil. It should be cleaned completely before attempting ignition again.

The filter may be sufficiently blocked to prevent fuel to flow at a rate the burner needs. Replacing it may be required. If not a dirty filter, lines may be clogged by bacteria in the oil that has clogged them. You might need to have the lines blown back to the tank with a compressed air tool designed specifically for this purpose. Air in the fuel line can cause the flame to go out, and once out it will not restart without the spark. This can be caused by the constant vibration of the burner. A loose coupling between the blower and oil pump can cause the flame to go out, as could a faulty oil pump. Too little combustion air can cause soot - too much is almost as bad.

The real problem is lack of professional maintenance. An oil burner needs to be tuned, not just cleaned. Proper air / fuel mixtures, nozzles replaced when worn, heat damaged parts replaced, clean heat exchangers, stack temperatures, draft, etc. must all be "tweaked." for optimum performance. A properly tuned traditional burner can be 86% efficient - newer styles well over 90%. But they won't stay that way without annual tuning. With the cost of heating oil, why settle for less than optimum efficiency?

Good luck!

Posted on Dec 28, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Boiler ries to fire on heating or hot water but then shuts down after 10 seconds to F1 with the flashing red light, any ideas. clearly same principle as any boiler but I'm looking for someone who has...


that would indicate that the boiler is not firing up
If oil fired, been there done that
it is out of oil
the oil filter is clogged
the nozzle could be clogged/burned
the igniter wires need adj/replacement

if gas fired - similar issues but no experience

Dec 08, 2014 | Water Water Heaters

1 Answer

I have a riello burner 40 it will fire and come to temp but wont refire, goes into lockout


My first guess would be that it sounds like a clogged oil filter, air in your fuel line, is piping overhead, or leak in a fitting or connection causing it to loose it's prime when running.

I have also seen primary controls that are faulty do this, watching the complete cycle of the run time will give you more clues as to when the control actually locks out. Does it lock out during the run cycle as the boiler reaches temp.? If so,check for oil line and suction issues as stated above.

If it locks out on start up after reaching boiler set temperature, if hitting reset right away burner doesn't start and lock out occurs with no motor engaging, check motor (Note: Some motors when HOT will not kick in when powered, but after they cool down naturally they start, motor shaft may also be bound up tight, replacement is necessary) if burner motor spins but does not fire, check for fuel flow to the nozzle, be sure oil is pumping to the nozzle, if it is, clean cad cell eye, and check transformer for spark, if all is good.. replace primary control.

Disclaimer:
Of course all this information is technical troubleshooting information and should be performed by a Licensed Technician, not knowing how to properly test for flame failure can cause injury, fire or worse! Consult a technician in your area if you are not proficient at oil burner repair!

Nov 21, 2014 | Honeywell Biasi B10-3 Boiler ,riello...

1 Answer

No running hot water in house.


These have a photoelectric eye , much the same as a motion sensor on an outside lamp, just pull this out, clean with a wet wipe, dry with a towel & replace, press the reset switch & your boiler should fire up producing lovely hot water

Nov 11, 2014 | American Standard 3-pass Oil-fired Boiler...

1 Answer

Furnace wont run after running


There are a few posibilities:
1) the oilfilter needs cleaning
2) your pressure reduction bore needs to be changed
3) there is still some air left in the oil-tubes coming from the tank and leads to your burner
The best solution is to call a technician, he'll fix the problem in no time and while he is at it, perhaps he could perform a maintenance

May 29, 2013 | Heating & Cooling

2 Answers

The boiler wont fire up and the blue light flashes once per second


Let's see what we can do to trouble-shoot this boiler--

First of all-- Are we talking about a Hot Water 'Boiler'-- In other words does this boiler heat water that circulates thru the house, to keep you warm?

Next-- What is your fuel?

Have you Shut the system down, to reset it?-- What happens when it comes back on again?-- Clicking sounds-- pumps trying to start-- solenoids trying to open, etc.-- Tell us what you observe-- so we can help you trouble shoot this problem.

Mack B

Jan 15, 2011 | Heating & Cooling

1 Answer

I have a vokera unica 28 which pulses when firing


your fan may need attension fan runs after boiler shuts down is normal on some Vokera,s too clear fumes out the flue 2mins approx

Oct 04, 2009 | Water Heaters

1 Answer

Boiler makes twitching sound and doenst stay on


If the boiler uses oil (#2 fuel diesel); there are several factors that could cause this problem:
* Lack of oil due to clogged oil filter or restricted oil line.
* Cad resistance greater than 1500 ohms.
* Defective Primary control.
* Shoot accumulated on the retention head.
* En pinching flame in combustion chamber.
* Collapsed combustion chamber into firing range.
* There are other reason not listed here.
* Some problems require expensive testing equipment to make an accurate diagnosis.
* Get in touch with an oil burner technician with several years of experience. I have a license to practice in the state of Massachusetts. My number is 978-5443783

Mar 05, 2009 | Water Heaters

1 Answer

Gas boiler won't stay lit!


The burners and pilot need to be cleaned.
Turn off gas and power, remove the burners and pilot. Clean with a brass wire brush. (Steel wire can be used but very carefully) Remove all rust dirt etc. reinstall and it should fire right up.

Dec 28, 2008 | Ruud UBHC Air Conditioner

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

187 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2519 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...