Furnace running during hot weather - http://www.hvacmechanic.com/ Forums
Original message
| Cheitz$
 |  "Furnace running during hot weather"
, posted Fri 15 Aug 19:17  
My furnace has started to run, even though I have it off at the thermostat. If I power off everything for a few hours and the temperature outside/inside cools down the heater remains off, But when it warms up over 85 degrees, on comes the heater. Is my problem in the thermostat or something more serious???
Thank you!
Chuck
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Replies:
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| envirosystemtec
| "Re(1):Furnace running during hot weather" , posted Sun 17 Aug 22:31
well did work what kind of stat do you have some stats have dip switches in them may want to check
tim
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| learner
| "Re(1):Furnace running during hot weather" , posted Sat 16 Aug 12:59
Hi,
First question is whether it did same thing before. Was it working normal before this summer? Next it sounds like it thinks it is a/c
not a heater. First thing I'd do is to remove a wire from W terminal
from thermostat and see.
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| | Cheitz$
| "Re(2):Furnace running during hot weather" , posted Sat 16 Aug 13:34
My heating system was working great, until two weeks ago. This is a brand new problem on a system that has given me no problems before now.
Thank you!
Chuck
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| envirosystemtec
| "Re(1):Furnace running during hot weather" , posted Sat 16 Aug 11:40
ok very odd i would start at the t-stat if it does not work then the board control board in furn
tim
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