Ruud Furnace Problem - HVAC - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC


Thread Tools Display Modes
Old 11-06-2010, 12:45 PM   #1
Join Date: Nov 2010
Posts: 1
Rewards Points: 10

Ruud furnace problem

I have Ruud gas furnace 75k btu that runs great without fresh air pipe connected but runs intermitently when the pipe is reattached..Pipe clear of blockages..<15 ' of pipes. Any idea what is happening


wayne z is offline   Reply With Quote
Old 11-06-2010, 01:03 PM   #2
Hvac Pro
yuri's Avatar
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 12,731
Rewards Points: 1,104

Ruud furnace problem

Pressure switch failing. Ventor fan slowing down. Need a manometer to check the draft thru the furnace and rating of the switch. May have an inlet screen where the pipe attaches to the furnace/burner box with debris in it slowing down the draft. Some Carriers and Lennox do.


"Cut it twice and it is still too short".
yuri is offline   Reply With Quote
Old 11-06-2010, 08:45 PM   #3
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Rewards Points: 1,000

Ruud furnace problem

Could also be recirculating the exhaust into the intake. Have seen that happen more then a few times due to someone cutting off the vents or placing something in front of them to block the view of the pipes.
Marty S. is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Payne furnace problem Laughingchi HVAC 26 05-24-2015 04:59 PM
Heil Furnace Burner Problem timothyr HVAC 79 02-12-2014 08:01 PM
Another Keeprite Electric furnace problem lrad Electrical 0 10-18-2010 01:24 PM
Ruud Furnace Problem patiofurniture HVAC 1 09-23-2009 08:14 PM
ruud furnace problem troubled1 HVAC 4 10-18-2006 05:14 PM

Top of Page | View New Posts