"Fleemo" wrote in message
om...
How about starting with your furnace model?

It's an old Payne, model #518A036CC.

Looked it up...limited support from Carrier.


Not enough info to even begin to tell you where to look, but as
others have
suggested, if you are not familiar with the operation and sequence of
proper
events, call a company, and make sure they are licenced and insured.

Called several over the past few days. Most have not even bothered to
return the phone call, while the others say it'll be the end of next
week before they can make a service call.

Depending on your part of the country, thats normal for this time of year...
Also, since the election, this trades business has taken off for the better
companies.



Find the fan limit and set it lower, maybe around 140 degrees and see
if that will make a difference.

Anywhere online where I might see a photo or diagram of what the fan
limit looks like? I'd rather attempt a simple fix first, and if that
doesn't work, wait ten days for a pro.

and you should, since if you dont know what it looks like, or even if you
have one, you can create more damage than you have now.
Not all of those old Carrier/Payne units had them.
Particularly since the blowers were on timers that were hardwired into the
controls.


From your description, it is obviously not the room thermostat.

Yeah, I don't think it's the thermostat, otherwise wouldn't the blower
be kicking on and off too? I noticed today that when I turned the
thermostat down (from 72 to 68) the cycling stopped. But as soon as I
set it back to 72, it started continuously cycling again.

-F

Depends onthe thermostat you have. While the least likely item would be the
stat, its possible you are #10, and 9 out of 10 issues are not the
thermostat, perhaps your numbers up.
Wait a bit, get the tech to check it.