Rumbling from furnace

My furnace (25 yr oil burner) has started rumbling when it starts up. Sometimes the vibrations are pretty bad, sometimes not. I just had it serviced (new nozzle, new filter, cleaned) about a month ago. I do know the ignition transformer is weak. Any ideas as to what might be going on and what I can do to fix it? Also, I am looking at replacing this beast this summer. What are some thoughts about the duel fuel furnaces (oil/wood)? Thanks.

Pat Russell

 

Ignition transformer in oil burner,ignition coil in car.If they are weak you will never get good,complete combustion!!!!!!PDF

 

Thanks, I thought that was the problem but the transformer is about $250.00 so I wanted to get some other opinions first. That price is what the repairman gave me so I will look for a cheaper one. Thanks again.

Pat Russell

 

there are electronic transformers that are 14,000 volts...higher voltage,better spark,better ignition...the old fashioned transformers are 10,000....i can not beleive it is 250 dollars to replace a transformer.................

 

$65.00 bucks for a carlin 14,000 v... and rummbling is caused by weak transformer.... some times you can help them along by getting the points alittle bit closer together...or call RE Michels in Ashtabula, Columbus, or Youngstown....

 

Go online for the hell of it.Somewhere you can pick up info on wholesale prices for what you need.250 bucks.WOW!!!!I have read a lot of responses on this forum.It is certain companies or people that leave a bad taste in our customers mouths.PDF

 

What it sounds like to me is that something is not set up
right on your oil burner. Have the ignition transformer changed($65.00 sounds right). Have the serviceman check the porcelins for cracks, set the ignitors correctly, make
sure the unit does not have too much combustion air(which
can make it start hard), nozzle is correct for the unit, and have the pump pressure checked. When he is done, have
him set the unit up with combustion test instruments. If
you call the service company and explain that it hasn't been running correctly since it was cleaned, you may just
have to pay for parts. GOOD LUCK!!