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I have a RUUD Ultra furnace that i am having problems with.
I have a RUUD Ultra furnace that i am having problems with. It is 22 degrees outside and i am having issues with the pressure switches. I don't think my intake and exhaust vents are plugged. Is it possible that with it being this cold the switches just aren't responding the best? Especially since they are located in the furnace where the intake air is coming from outside? The switches to the touch are cold. … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
10,087 satisfied customers
Trane xr90 gas will not ignite unless firebox cover is
trane xr90 gas will not ignite unless firebox cover is completely removed.... furnace repair guy put in new gas valve but exact same thing happens. … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,390 satisfied customers
How do I choose an HVAC expert? L am beginning my gas
l am beginning my gas furnace installation, and am trying to figure out the heat side ducting. The old furnace had a square box (bonnet?) going into a 12" round duct, then into a square distribution box. The new furnace has a slightly larger rectangular outlet. On the old furnace, the transition from square to round was accomplished by a tapering adapter. Do I need to do the same tapered transition on the new furnace? Or can I just attach a rectangular box like the cold air return plenum, then attach the 12" round duct? Will this create too much turbulence if I don't use a tapered transition? … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
10,087 satisfied customers
Rick, I did as you recommended connecting the 2 wires
Hi Rick, I did as you recommended connecting the 2 wires together and it fired right up and starting heating. So far I have replaced the entire thermocouple and gas control valve and it lights up and … read more
Rick
Rick
Supervisor
28,705 satisfied customers
Here is the sisu. Here is the situation: Trane XR90 gas
Here is the situation: Trane XR90 gas furnace installed in 2010. Had trouble with it shutting off intermittently when it was running resulting in the three blinking lights. If we pulled the pvc intake tube out of its socket on the furnace once this happened, the unit would work without trouble. Called technician in after a year or so of this and tech spent several visits investigating the furnace. his solution was to cut the intake pipe off about 1 foot from the furnace so intake came from air in the basement; not outside. this has worked without trouble for several seasons. // We are now remodeling the basement and need to get the furnace pulling fresh air from outside instead of air from inside the basement to satisfy building permit inspectors. My contractor thinks the original trouble was that the intake piping had 4 90 degree turns in it making intake air intake problematic. I have the chance now to re-do the intake pipe on a different route to outside with just 2 45 degree angles. Would t his be a good solution that would have a good chance of fixing the issue? I assume thats since the tech spent so much time investigating the unit and the situation (and that his solution worked) that there are no internal issues with the unit causing the shut down. Thanks in advance for your reply. … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
8,427 satisfied customers
Came to this site searching for "American Standard Freedom
Customer: my name is Tim. Came to this site searching for "American Standard Freedom 90 3 flash code" … read more
BillyHvac
BillyHvac
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Gotoman,I live in an old town home that is multi level
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airheatman
airheatman
Heating & Air Conditioning Contractor
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my condo in Fraser CO (~8400 ft elevation) has a munchkin contender.
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Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
8,427 satisfied customers
How should the air intake and the exhaust outlet be configured
How should the air intake and the exhaust outlet be configured for a high efficiency furnace for cold weather operation?… read more
Phil
Phil
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Degree, Mech Engr Technology
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We recently moved into a 1500 sf single level home. The cold
We recently moved into a 1500 sf single level home. The cold air intake is located on the bottom of the wall as you enter the house. I want to put a entryway furniture piece in front of the cold air r… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,390 satisfied customers
Installing A pg9mab 100,000 btu 90+. on the combustion side,
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BillyHvac
BillyHvac
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A few months we purchased a Heil Furnace - END4X24C14A2. After
A few months we purchased a Heil Furnace - END4X24C14A2. After Hurricane Irene we had water in our basement. To play it safe, we had the original company come in & check the furnace to the tune of alm… read more
Rick
Rick
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My rheem classic 90 Model# XXXXX is not firing. the green
My rheem classic 90 Model# XXXXX is not firing. the green light is flassing one time every three second..cam u help… read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
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I have two furnaces in my house. they both seem to be running.
I have two furnaces in my house. they both seem to be running. The one in the garage I can see the three flames going but we are getting very little air (two closes vents) out of the floor vents. The … read more
Phil
Phil
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Degree, Mech Engr Technology
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I have a Concord model r2 ever time yoou change the temperture on thermostat. yo
I have a Concord model R2 evertime you change the temperture on thermostat. you have restart and it will work a couple then quit. New Nozzel, New Filters, Adjusted igniters and to me when it starts it… read more
GreenHeating
GreenHeating
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my central air blows hot air at the beginning of a cycle and
my central air blows hot air at the beginning of a cycle and rarely shuts of. It is not cooling the space right and my elect. bill has doubled... l have a 3 ton unit and 1200 or 1300 sq. ft. house....… read more
Mark Henley
Mark Henley
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53 year old home now very cold, Gas fired boiler, hot water
53 year old home now very cold, Gas fired boiler, hot water baseboard heat, replaced motor last week, must have bumped pump mount becaus it began dripping overnight to the tune of about 5 gal in 24 ho… read more
Mark Henley
Mark Henley
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We have a 3.5 ton a/c installed. What should the intake size
We have a 3.5 ton a/c installed. What should the intake size be. Our home is a 1500 square feet. It is currently a 14x32… read more
Rick Mather
Rick Mather
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Vocational, Technical or Trade Scho
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Meet the Experts:

Phil

Phil

Mechanical Engineer

8,427 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,029 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

A-1 Tech

A-1 Tech

Service Manager

526 satisfied customers

I have been in the HVAC business for over 40 years.

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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