nat gas furnace kicks on & off fast?

Problems related to residential installations.

nat gas furnace kicks on & off fast?

Postby ARTAQ » Thu Jan 06, 2011 12:47 pm

hi all. our natural gas forced air furnace will often times kick on for literally 1-2 seconds and then off, only to repeat again 5 seconds later. it will do this the whole "heating cycle", until the thermostat reaches the temp where it tells the furnace to turn off. it has been doing this for at least the past 4 winters.

this cant be good for the furnace / fan?!

it is a 15 year old Miller furnace.

i hired a "handyman" a couple of winter's ago who said he fixed it....it started doing it again a week later.

before i call a local furnace pro, do any of yall have any ideas what this might be?

after spending $ on this problem once before, i want the next time to be the last fix.


tx!
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- nat gas furnace kicks on & off fast?

Postby ARTAQ » Sun Jan 09, 2011 11:40 pm

-

of course it hasnt done this since i posted lol ...

but i HAVE looked in beforeand seen the pilot lit / bruner on when it does this.


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is this something a noob can do, or should i hire a professional?

perhaps i will check youtube, otherwise i might as well hire an expert i reckon.


tx thus far fellas!!!
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- nat gas furnace kicks on & off fast?

Postby ajwolck1 » Mon Jan 10, 2011 4:42 pm

dont think it has a flame rod.thermocouple may need to be replaced.u have a multimeter.
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- nat gas furnace kicks on & off fast?

Postby ARTAQ » Thu Jan 13, 2011 5:34 pm

idk what that is

i live in a mobile home, if that makes a diff in the type of nat gas furnace it might be.



well it hasn't happened since i began this thread.....what is the opposite of Murphy's Law
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- nat gas furnace kicks on & off fast?

Postby nomadpeo » Sun Jan 16, 2011 1:30 pm

do you have a mechanical thermostat (not digital) ?
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