06:52PM | 11/11/04
Member Since: 11/10/04
2 lifetime posts
My furnace has started to make a "thunking" noise AFTER it turns off (there is a long cycle, furnace stops, 30 seconds later a "thunk", then the fan goes on for a bit...then it all starts over with the next cycle). By the way this began after a technician came out and cleaned the furnace and did a "check-up" The owner of the company came out and said it was not the ductwork; but a "bad weld" in the heat exchanger. He did not take anything apart or off the unit.. said he could "hear it" in the unit. The furnace is approx. 25 years old and runs fine. He told me to get a CO alarm and to replace the furnace (sent me an estimate of course) Any ideas? Thanks, Jasmine


04:24PM | 11/14/04
Member Since: 12/09/03
178 lifetime posts
If you can take the panel off to expose the fan switch then turn on the fan without the burner. If it thunks, feel the duct work for a spot that may pop with the added air pressure. Also, the fan may be loose, or there may be a loose panel on the furnace. C.


04:30PM | 11/14/04
Member Since: 11/10/04
2 lifetime posts
Thanks so much "C" for the ideas about my thunking noise. I'll get someone to try the way..I've told a few people about the "estimate" he gave me for a new furnace and they were outraged...said it should cost half the amount he quoted; but probably there's something "loose" in there...NOT the heat exchanger. I appreciate you taking the time to post.... jasmine


07:19PM | 11/15/04
Member Since: 12/09/03
178 lifetime posts
I hopr that the "thunk" is a minor problem. I appreciate your getting more opinions on this. Contractors are like doctors always get more opinions. Good Luck. C.


04:33AM | 11/24/04
Member Since: 11/13/04
3 lifetime posts
My furnace also makes a thunking noise approx 10-15 minutes after it turns off. It almost sounds as if someone is hitting a piece of metal.

I'd be interested to know what you find out about your furnace. Maybe the same problem relates to mine.


Post a reply as Anonymous

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


type the code from the image


Post_new_button or Login_button

Painting your front door a striking color is risky, but it will really grab attention. Picking the right shade (and finish... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... For windows, doors, and mirrors that could use a little definition, the Naples Etched Glass Border adds a decorative flora... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon