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Gas Furnace cuts in and out at lower temperature settings

Posted: Thu Oct 15, 2009 1:28 pm
by kokie
Hi All,
I am hoping someone has some suggestions as to why my 1994 natural gas furnace cuts in and out when I have it at a lower temperature setting overnight. I usually set the thermostat at just below 60 degrees, and I always have to get up and turn the darn thing right off, as it cycles at these lower temps. No problem when I move the setting up to between 67 and 70. I have replaced the relays and that did not solve the mystery. Plus, the furnace gets it's yearly maintenance from a professional, and even he cannot come up with a solution. Anyone else have these kind of issues? any thoughts as to what may be the problem? Any help will be appreciated.
:?:

Re: Gas Furnace cuts in and out at lower temperature settings

Posted: Mon Oct 19, 2009 1:31 am
by Robert
Hi,

Hard to say without being there to test it. I can say that cooler in home temps do play havoc on a lot of furnaces .


I would have it thoroughly tested and if nothing found, either set t-stat higher or maybe call the manufacturer for info on it.



Thanks,
Robert

Re: Gas Furnace cuts in and out at lower temperature settings

Posted: Tue Oct 20, 2009 11:50 am
by flcruising
Can you set the temperature swing on the t-stat?