My Oil Boiler Furnace Won't Stay On ...So Cold ... HELP

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Old 03-03-14, 09:19 PM
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My Oil Boiler Furnace Won't Stay On ...So Cold ... HELP

I really need help and I am totally exhausted about my boiler problem.
Please HELP.

Problem is oil furnace won’t stay on;
1. 2 months ago, I found delay ignition problem and sound like something explore (puffback) but boiler never turned off at this time.
2. I decide to fix myself and I replace the oil filter, oil pump screen and Nozzle.
3. After that my boiler have started furnace problem and furnace keep turning off almost every 2 or 3 min.
4. I replaced more stuff - Transformer, Electrodes, Cad Cell and Cad Cell Relay too.

But still same problem and won’t stay on.
If I push restart button when boiler was cold, furnace running smooth around 3min and after that start little puffback and come some noise like “zzing ~~”. That noise very similar to steel pipe grinding sound. About 2 min noising … sound gone about 10-15sec …. Furnace off and cad cell relay pop up.
I really don’t know what I have to do … Please help and have a nice day.
 
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Old 03-04-14, 06:21 AM
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I really don’t know what I have to do …
The short answer is that you should probably call a technician at this point.

When there is no heat in the home and you don't currently possess the skills to diagnose and repair the problem yourself, you really have no choice.

There are many things that need to be learned and understood about oil burners. There are ADJUSTMENTS to the burner that must be properly performed to get good combustion. Simply throwing parts and money at the burner will often not fix the problem.

With that said, have you checked the COUPLER between the motor and the blower/oil pump?
 
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Old 03-04-14, 05:53 PM
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Thank you for your advice NJ Trooper.
I didn’t check the Coupler and I think oil pump is ok. I know there are many things to learn.
I will call someone this weekend. Thank you again.
 
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Old 03-04-14, 08:37 PM
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I didn’t check the Coupler
Do check it then. That 'whirring' or 'grinding' noise you are hearing could be that.
 
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Old 03-05-14, 07:38 PM
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I replace the coupler tonight ... but still have same problem.
Thank you NJ Trooper anyway.
 
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Old 03-05-14, 08:01 PM
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You may have a clogged fuel line.

Fuel pumps will start to 'scream' when the fuel line is plugged up. It may not be completely plugged and letting a little oil through, but after a few minutes gets starved for oil and shuts burner down.
 
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Old 03-07-14, 08:36 AM
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Thank you NJ Trooper & Spott. I will try one more time this weekend. Have a nice weekend all.
 
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