Can't get my furnace to run on a generator
December 13, 2008 4:52 PM Subscribe
I've tried two different generators, but still can't get my oil burning furnace to power up. Detail inside post
posted by inthe80s to home & garden (7 answers total)
I'm in day two of what promises to be a week long power outage. The first generator was several years old 2KW and had a plugged carboratuer, I fixed it and got it running. It didn't run the furnace. Now I've got a brand new 6KW generator with several 20 amp circuits on it and I'm trying to run a oil furnace, which runs on a 110 15amp circuit. I have a proper generator panel hookup that several years ago did run my previous furnace fine. Both generators produced the following symptoms.
When I turn on the furnace, there's a clicking/buzzing noise for about 20 seconds, and then I get flame. It runs for a minute and shuts down. The blower never spins up to full power, it barely spins at all. The furnace then shuts down after a couple minutes due to an overheat (since the heat never gets moved by the weak powered fan blower)
I think the blower motor could have gotten taken out by a power spike when the power went down. The motor was replaced about 3 years earlier due it burning out before, and the tech replaced it with a bigger motor. I tried wiring it to a slower speed, but it didn't appear to work.
Is there anything else it could be? It should be enough power, though it also acts like it's not.
I'm not sure I should call the oil company out to service it if I'm trying to run it on a generator (they're probably swamped with calls anyways due to the massive problems here in the Northeast). No idea where I could even get a replacement motor before Monday in Central Mass either.