RV Ratings Go to Main Page RV mechanic on duty. Start at the home page.
RV Mechanic RV engine problems? RV mechanic help only a click away!

Duo therm 901

Home > Discussion Forum > Mechanic's Corner (general)

Email Author email Ray  Reply to Message reply to message  Post New Message post new message      search forums
hidden layer
All Postings that advertise items for sale will be deleted from the Discussion Forum. You may post sale items for free in the Classifieds section. Sign up now.
All Messages in ThreadAuthorDate
Duo therm 901 Ray 4-28-09  
Hi All
I have a duo 901 furnace, everything runs good now.. except now when it starts up, it pops and pops..something it has to ignite more then once.. making loud poping sounds which is gas going all the way outside before it lights.. any ideas? Ive tried adjusting the regulator, the air shutter.. anyone have this problem?
let me know
die hard trailer lover
Re: duo therm 901 Keith 4-28-09  
Hi Ray, Hate to be the bearer of bad news... this series Duo Therm are known for safety problems. You probably have a crack or hole in the burner chamber. Carbon Monoxide poisoning is possible. I advise you to junk this furnace and get a new one. Suburban SF series are probably the easiest swap. Some mod's required but less than an Atwood. Don't try to fix it, JUNK IT!! Seriously! Good luck!
Re: duo therm 901 William 4-28-09  
Ray - I agree with Keith - This gun-type furnace was exceptionally efficient but tough on the combustion chamber. You will probably find the stainless chamber feed at least partially melted. CO poisoning is pretty remote as the static pressure on the outside of the chamber is greater than the pressure on the inside. Only the 20,000 Btu units survived a decent service time. Try the Suburban and take all the kinks out of any flex ducting. William
Required fields in red
For more info about a field, place your mouse over the More Info icon.
Your Name:
Your Email:

Code is case-sensitive. Helps stop SPAM.

Useful Links
Recent RV mechanic and troubleshooting topics
  Looking for 21-24 ft. Chinook type B+ class
  Re need motorhomr
  97 discovery headlight switch wiring
  94 gmc k1500 4x4 transmission wont shift
  Owners manuel for 2900 series foretravel grand villa front gas engine
  1991 Pace Arrow Brake Pads
  Sewer system on a 1995 Terry fifth wheel (30 ft)
  Need owners manual 1997 royal international
  1986 american cobra 454
  2002 M & S 18' beaver tail tandem axle trailer
  2002 Intruder tandem axle 16' trailer
  Need a place live my husband and myself
  Firan LMC wiring Looking For Fuse Panel
  Owner and repair manuals

RV-Coach Online

Food Recipes & Blog

Homeschool Curriculum

Free Auto Insurance Quotes

Orange Beach/ Gulf Shores, AL Fishing

Print-friendly page
PRIVACY POLICY|TERMS & CONDITIONS| 1996 - 2014 RV-Coach Network - All Rights Reserved|Web Site by ITtelligent