Ugly Hedgehog - Photography Forum
Home Active Topics Newest Pictures Search Login Register
General Chit-Chat (non-photography talk)
Oil Burner Situation
Page <prev 2 of 3 next>
May 26, 2022 07:54:01   #
jerryc41 Loc: Catskill Mts of NY
 
Mr. SONY wrote:
Warning, warning, warning!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Do not push the reset button more than once maybe twice.
Every time the motor turns on misted oil is injected into the firebox.
If you inject to much unburnt oil into the firebox and then get lucky and it ignites all that unburnt oil will start to burn
and you will get a puffback.
Black smoke will be coming out of the boiler in place's you never knew existed.
If you do inject to much unburnt oil into the boiler, a rolled-up piece of paper set on fire and then pushed into the firebox
will burn off the excess oil, safely.
If you are mechanical, nozzles are easy to replace. Buy the right size and type.
Make sure you adjust the gap of the electrode too. Another easy job.
A plumbing supply store is preferable to Home Depot or a Lowe's store.
Changing an oil filter is easy also. Can be messy if you're not careful.

I learned to service all my oil burners myself.
I only got stumped once.
Warning, warning, warning!!!!!!!!!!!!!!!!!!!!!!!!!... (show quote)


Thanks. Yes, I've heard that many times. Press the button once. I have it serviced every year, and I'm guessing they do what they're supposed to do because they spend a lot of time on it.

There is no filter. When the in-ground tank began leaking, they put the new tank in the garage. The fuel line runs up eight feet, through the crawl space/attic, and down into the boiler room. With a filter installed, they couldn't get it to run. Not ideal, I know. The alternative would be to cut a channel in the floor and run the line like that.

Reply
May 26, 2022 07:54:33   #
jerryc41 Loc: Catskill Mts of NY
 
Longshadow wrote:
I'd keep a clear path to the heater just in case it needs to be turned OFF for some reason in an emergency.


I have the switch on the wall to turn it off.

Reply
May 26, 2022 07:55:22   #
jerryc41 Loc: Catskill Mts of NY
 
alltoptom wrote:
Follow this guy on Youtube. Steven Lavimoniere Be careful you might get addicted to his videos. LOL🙄


I'm subscribed!

Reply
 
 
May 26, 2022 09:12:09   #
Woodworm65 Loc: Lombard, IL
 
Not a very good idea, oil burners that require a reset often mean several things as follows:
1) If equipped with a fire eye the eye could be dirty and or possibly going bad.
2) The electrode that ignites the burner could be going bad.
2) Dirty atomizing nozzle.

All of the above can lead to the combustion chamber filling with oil and not firing and when it does fire it could lead to an explosion or a serious fire, my experience is a service tech for 44 years in the commercial industrial refrigeration and HVAC business so in conclusion repeatedly having to reset the burner is telling you there is a problem or the start of one.

Reply
May 26, 2022 09:34:31   #
stu352 Loc: MA/RI Border
 
Had that happen at my first house, shortly after the burner had been serviced. Middle of a cold night, of course. Pressing the reset wouldn't start the burner, so I lit my propane torch and stuck it in through an inspection port and hit reset. Started right up and warmed up the house. The service guy came the next day (different guy from before), and found the igniter contacts were incorrectly positioned, so sometimes there would be a spark, sometimes not.

My Mom had a similar issue back when I was still at home. The step up transformer for the igniter went intermittent. I still have that transformer, using it for a climbing arc. when it feels kike working, of course.

Reply
May 26, 2022 10:11:09   #
jerryc41 Loc: Catskill Mts of NY
 
Woodworm65 wrote:
Not a very good idea, oil burners that require a reset often mean several things as follows:
1) If equipped with a fire eye the eye could be dirty and or possibly going bad.
2) The electrode that ignites the burner could be going bad.
2) Dirty atomizing nozzle.

All of the above can lead to the combustion chamber filling with oil and not firing and when it does fire it could lead to an explosion or a serious fire, my experience is a service tech for 44 years in the commercial industrial refrigeration and HVAC business so in conclusion repeatedly having to reset the burner is telling you there is a problem or the start of one.
Not a very good idea, oil burners that require a r... (show quote)


I understand. The last time it happened was during the previous winter, so it's not like a regular thing.

What exactly does that red button do?

Reply
May 26, 2022 11:19:18   #
alltoptom
 
jerryc41 wrote:
I'm subscribed!


I think I would hire him and Miss Molly!!😀🐶

Reply
 
 
May 26, 2022 13:00:55   #
sippyjug104 Loc: Missouri
 
Jerry, I cut my teeth on servicing oil burners so perhaps this may help.

For YOUR safety, an oil burner (meaning an oil-fired furnace or boiler) must prove that it is actually burning otherwise it would continue to pump fuel oil until it empties the fuel tank.

The safety device is referred to as a "Stack Relay" which times out if it does not sense heat in the flue stack within a few moments of a "call for heat" which starts the burner motor that drives the combustion fan and turns the fuel pump. The ignition transformer sends a high voltage to the electrodes which spark at the gap between them igniting the fine mist of oil.

The stack relay has a "red reset button" on it. When it fails to sense heat, it trips that relay and it has to be manually reset which allows the system to "try again". DO NOT continue to press the reset if the heater does not fire for there will be an accumulation of oil in the combustion chamber. That will get exciting should it light off!

Now...Here's the trick. The stack relay operates by means of a spiral bi-metal element stuck into the flue pipe. When it heats, it expands and it is connected to a shaft that extends when hot and retacts when it cools. When the furnace sits idle for a period of time, the relay can get "out of sync" for the switch mechanism rides on that shaft which is "friction fit".

Look closely and you will see what looks like a metal lever. Take your finger and pull that lever toward you and slowly let it relax back. This will recalibrate the mechanism and everything will be right with the world.

You will pay a service technician handsomely for a few seconds of his time although hopefully, he will service the burner by changing the oil tank filter, setting the electrode gap, replacing the oil nozzle, and tuning the fuel to air ratio of the burner. That one thing alone will pay for itself for if the combustion ratio is not at its optimum you will not get the maximum heat efficiency from the oil burned. Also...having the correctly sized oil nozzle is a make-or-break deal too. Oil nozzles are listed by their flow rate in gallons per minute and the angle of spray, both of which must meet the design of the furnace the burner is connected to. Sadly, too many technicians replace the oil nozzle with ones that they happen to have handy rather than to match the specification of the furnace or boiler.

Reply
May 26, 2022 13:11:07   #
jerryc41 Loc: Catskill Mts of NY
 
alltoptom wrote:
I think I would hire him and Miss Molly!!😀🐶


Oh, golly!

Reply
May 26, 2022 13:11:26   #
sippyjug104 Loc: Missouri
 
jerryc41 wrote:
Thanks. Yes, I've heard that many times. Press the button once. I have it serviced every year, and I'm guessing they do what they're supposed to do because they spend a lot of time on it.

There is no filter. When the in-ground tank began leaking, they put the new tank in the garage. The fuel line runs up eight feet, through the crawl space/attic, and down into the boiler room. With a filter installed, they couldn't get it to run. Not ideal, I know. The alternative would be to cut a channel in the floor and run the line like that.
Thanks. Yes, I've heard that many times. Press th... (show quote)


Jerry, this is what your oil furnace or boiler stack relay looks like with the cover off. The reset sync lever is that "tab looking thing" at the top center of the picture. Pull it toward you and let it relax back into position and that will put the relay back into thermal neutral. Barring any other problems, this should allow the burner to fire again.

IF...the burner runs and there is no fire...then there is an ignition problem in which the electrode gap may be too wide or shorted out (the electrodes are like the car spark plug and they have porcelain insulators. If they get dirty the spark will ground out and it will not spark at the gap. No spark...no fire) or there is a problem with the ignition high-voltage transformer.


(Download)

Reply
May 26, 2022 13:12:28   #
jerryc41 Loc: Catskill Mts of NY
 
sippyjug104 wrote:
Jerry, I cut my teeth on servicing oil burners so perhaps this may help.

For YOUR safety, an oil burner (meaning an oil-fired furnace or boiler) must prove that it is actually burning otherwise it would continue to pump fuel oil until it empties the fuel tank.

The safety device is referred to as a "Stack Relay" which times out if it does not sense heat in the flue stack within a few moments of a "call for heat" which starts the burner motor that drives the combustion fan and turns the fuel pump. The ignition transformer sends a high voltage to the electrodes which spark at the gap between them igniting the fine mist of oil.

The stack relay has a "red reset button" on it. When it fails to sense heat, it trips that relay and it has to be manually reset which allows the system to "try again". DO NOT continue to press the reset if the heater does not fire for there will be an accumulation of oil in the combustion chamber. That will get exciting should it light off!

Now...Here's the trick. The stack relay operates by means of a spiral bi-metal element stuck into the flue pipe. When it heats, it expands and it is connected to a shaft that extends when hot and retacts when it cools. When the furnace sits idle for a period of time, the relay can get "out of sync" for the switch mechanism rides on that shaft which is "friction fit".

Look closely and you will see what looks like a metal lever. Take your finger and pull that lever toward you and slowly let it relax back. This will recalibrate the mechanism and everything will be right with the world.

You will pay a service technician handsomely for a few seconds of his time although hopefully, he will service the burner by changing the oil tank filter, setting the electrode gap, replacing the oil nozzle, and tuning the fuel to air ratio of the burner. That one thing alone will pay for itself for if the combustion ratio is not at its optimum you will not get the maximum heat efficiency from the oil burned. Also...having the correctly sized oil nozzle is a make-or-break deal too. Oil nozzles are listed by their flow rate in gallons per minute and the angle of spray, both of which must meet the design of the furnace the burner is connected to. Sadly, too many technicians replace the oil nozzle with ones that they happen to have handy rather than to match the specification of the furnace or boiler.
Jerry, I cut my teeth on servicing oil burners so ... (show quote)


Thanks for that. I'll file it away. So far, it's been running fine.

Reply
 
 
May 26, 2022 13:13:28   #
jerryc41 Loc: Catskill Mts of NY
 
sippyjug104 wrote:
Jerry, this is what your oil furnace or boiler stack relay looks like with the cover off. The reset sync lever is that "tab looking thing" at the top center of the picture. Pull it toward you and let it relax back into position and that will put the relay back into thermal neutral. Barring any other problems, this should allow the burner to fire again.

IF...the burner runs and there is no fire...then there is an ignition problem in which the electrode gap may be too wide or shorted out (the electrodes are like the car spark plug and they have porcelain insulators. If they get dirty the spark will ground out and it will not spark at the gap. No spark...no fire) or there is a problem with the ignition high-voltage transformer.
Jerry, this is what your oil furnace or boiler sta... (show quote)


Excellent!

Reply
May 26, 2022 14:50:01   #
TheShoe Loc: Lacey, WA
 
Longshadow wrote:
I'd keep a clear path to the heater just in case it needs to be turned OFF for some reason in an emergency.



Reply
May 26, 2022 16:03:44   #
edrobinsonjr Loc: Boise, Idaho
 
Move all of the "stuff" blocking the entrance...

Reply
May 26, 2022 17:54:14   #
lhbpe Loc: North Carolina
 
I agree. Something is causing it to trip off.

Reply
Page <prev 2 of 3 next>
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.
General Chit-Chat (non-photography talk)
UglyHedgehog.com - Forum
Copyright 2011-2024 Ugly Hedgehog, Inc.