COMMUNITY FORUM

Bert Kohen

06:30AM | 03/05/03
Member Since: 03/03/03
1 lifetime posts
Bvhvac
My Carrier Weather Maker 58SXC furnace seems to quit when the temperature outside drops to about minus 10C (14F) or below. It will start, shut itself down after about 15-20 minutes, run again for 5 to 7 minutes, shut itself down, start again, run for a couple of minutes and shut itself down for good. Then I have to reset the furnace by switching the power to the furnace off and on. Then the cycle starts again. All this time the thermostat is calling for heat. If the room temperature is around the thermostat set point, it runs OK, starting and stopping as it should to maintain the set temperature. I disconnected the outside air supply and started the furnace on inside air and it ran for 4 hours before it shut itself down while the thermostat was still calling for heat. I noticed that in running it on inside air it took a lot longer to heat the place. The limit switch and the pressure switch were changed: it did not help. The board self-test indicates no problems. Has any one encountered this? Any suggestions? I had heard that high efficiency furnaces were prone to operating trouble when the outside temperaturee reached certain lows (or perhaps at certain temperature differentials between inside and outside) but I can't find any references....

ACD

03:13AM | 03/06/03
Member Since: 10/15/02
359 lifetime posts
My one small furnace I installed did the exact same thing, but it didnt matter what the outside temperature was. The sump wasnt draining properly so the sensors on the exhaust blower would see insufficient flow and shut it down. Wonder if its a condensation thing.
Click_to_reply_button
Inspiration_banner

INSPIRATION GALLERY



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply_choose_button

Anonymous

Post_new_button or Login_button
Register

A new backsplash is a great example of a stand-alone cosmetic project that can dramatically transform a space. Fireclay Ti... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled entryway will get you in the outdoor mood. Grab your coat... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... A kitchen in a greenhouse—who wouldn't enjoy spending time in this light-filled space? Details that enhance the conservato... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... The Infinite Artisan Fire Bowl from Eldorado Outdoor is made from glass-fiber reinforced concrete, and offered in Oak Barr... The vibrant green of Granny Smith apples make a beautifully natural alternative to the traditional evergreen wreath. Brigh...
Follow_banner_a
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon
 
webapp1