When my gas boiler lights up, it causes a big bang.

boopfm523

When my gas boiler lights up, it causes a decent sized bang that seems to have gotten larger over time. I have a motion light near the boiler in my basement and it activates it. I setup a ring camera to capture the event. I put it on YouTube to share. Doing some research, there could be a few reasons. Full transparency, I've had this house since August of 2016 and it's not been cleaned once in that time.

It has a S8610U Continuous Retry Intermittent Pilot. This was just replaced a month ago. This behavior started before it was replaced however.

https://www.youtube.com/watch?v=CJdfTTV4BQQ

Thanks

Mad Dog_2

This is NOT something to put on the "back burner"  (pun intended).  You need a fuel/combustion pro in therr right away. I would shut it off until he comes.  Delayed ignition is very dangerous mad dog 🐕 

Mad Dog_2

SHUT IT DOWN NOW.  MAD 🐕 DOG

ratio

Shut it down! Whatever's failing to cause the problem isn't going to heal up, it's only going to get worse. The only question is, will you be the one to shut it off, or will the fire department.

boopfm523

Thanks all. So I turned the heat to "off" on my thermostat. With the assumption that this would shut it down. I did this around 7:15 am. I had to leave the house to run errands. When I came home at 8:50, I surprisingly heard the boiler running. I checked the ring camera I have aimed at it still, and it recording the boiler lightening up (loudly) again. I've since turned the power off to the boiler to make sure it's fully shutdown.

I live in Baltimore, so while running the errands, I called and left a Voicemail with All Steamed Up ( @Steamhead ) who I happened to see is in my area while visiting this website.

Jeff

JUGHNE

I would shut off the power AND the gas supply to the boiler.

boopfm523

roger that

In_New_England

I'm looking at all the flammable stuff on camera. I think you dodged a bullet here. Is this because the whole base of the burner is just open, basically looking like a gas cooking range underneath? We have an oil burner and it's all enclosed.

Steamhead

We're on this- talked to the OP today.

boopfm523

@Steamhead - Here are some videos of the boiler in action. The first two, you can hear a much louder sound while it's running. The far left two burners have a noticeable flame at the end as well. The "smooth" version was ~ 10 mins after I recorded the "loud" versions. It went out went out and started back up in between.

Loud:
https://youtu.be/IRsioGtyC2A
https://youtu.be/EbBtzj5Vj2k

Smooth:
https://youtu.be/zvBV7ku2v7k

tim smith

I could have called that one in my sleep if the bang didnt wake me up.