HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
My hvac tech said I needed a new control board for my lennox
My hvac tech said I needed a new control board for my lennox g40uh-36a-070-06. The control board is a white rodgers sure light 50a65-121-06. I called a supply store and they sold me a 50a65-843. All t… read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
200 satisfied customers
I have a question on an amana furnace ads80703ana. At first
I have a question on an amana furnace ads80703ana. At first burners would turn on then shut off, retry cycle a couple more times and then would shut off and I would get 4 blinking light (open high lim… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Trane XE 70 lights for a few seconds and then turns off.
Trane XE 70 lights for a few seconds and then turns off. Turn furnace off and it tries again. Some times it works. Cleaned flame sensor, same thing. Installed new flame sensor same thing.… read more
Tim H
Tim H
Lead building engineer
Vocational, Technical or Trade Scho
1,922 satisfied customers
i have a erratic white rodgers amana furnace control board
i have a erratic white rodgers amana furnace control board model 50a65 289 02, can i purchase one of the upgraded boards as a replacement such as 50a65 475?… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,181 satisfied customers
We have a Lennox G27M3-75A-2 furnace. The gas valve is not
We have a Lennox G27M3-75A-2 furnace. The gas valve is not opening. The ignitor is working. We were able to "jump-start" the furnace and get gas to fire. We were instructed to purchase new control pan… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,181 satisfied customers
I have two Lennox 80UHG2-45A-3. I replaced both circuit boards
I have two Lennox 80UHG2-45A-3. I replaced both circuit boards this time last year during the winter the furnaces worked perfectly. Now that cold is back upon us I flipped the thermostat to heat and n… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
I have a white-rodgers universal 50A55-843 with diagnostic
I have a white-rodgers universal 50A55-843 with diagnostic indicator flash code 4 open high temp limit switch flashing....the furnace only blows cold air.. I bypassed the limit switch and the burners … read more
V12Tech
V12Tech
252 satisfied customers
Trane XE 90 blower runs constantly with a 5 flash code
I have a Trane XE 90 the blower stays on all the time with a 5 flash code the blower comes on with the thermostat wires removed.… read more
Tim H
Tim H
Lead building engineer
Vocational, Technical or Trade Scho
1,922 satisfied customers
I have a american standard freedom 80 furnace. the blower
I have a american standard freedom 80 furnace. the blower relay ahs burned out. my intell ignition is a 50A65-475, can't find this. is there an upgraded version of this board?… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,181 satisfied customers
Hi! Our Trane XR80 (TDD model) stopped working. Found the
Hi! Our Trane XR80 (TDD model) stopped working. Found the Igniter had "blown up" (there was a brown/yellow "blast pattern" on the sheet metal where it used to be - - the ceramic base for the igniter h… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I am a very handy guy when it comes to electrical wiring and
I am a very handy guy when it comes to electrical wiring and remodeling. I have a trane xr90 with a white-rodgers 50A65-475 control board that needs to be replaced. Is this something that is an easy "… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
Hi, I replaced the ignition control circuit board on my
Hi, I replaced the ignition control circuit board on my Rheem natural gas furnace model RGUC-07EAAER with a universal White Rodgers model 50e47-843 (thanks to your assistance on a previous conversatio… read more
Tim H
Tim H
Lead building engineer
Vocational, Technical or Trade Scho
1,922 satisfied customers
where is the the high temperature limit switch on a white rodgers
where is the the high temperature limit switch on a white rodgers model 50m56-843 universal integrated ignition module… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,181 satisfied customers
How do you reset a white rodgers 50E47-843. The power went
How do you reset a white rodgers 50E47-843. The power went out a few months ago and the furnace hasn't worked since. I looked at the box to see what Diag code (light red flashing) is in lockout mode..… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
THE RED LIGHT ON MY CONTROL BOARD IS FLASHING IN A SERIES OF
THE RED LIGHT ON MY CONTROL BOARD IS FLASHING IN A SERIES OF 3 INDICATING A STUCK PRESURE SWITCH. THE PRESURE SWITCH IS NOT STUCK; IS THE BOARD BAD. IT IS A WHITE RODGERS 50A50-241.… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
I have a gas furnace by Trane with a White Rodgers 50A50-473
I have a gas furnace by Trane with a White Rodgers 50A50-473 controler. The furnace does heat the filament ignitor but gas does not turn on. During the cycle prior to the gas turn on, the LED flashes … read more
Mike
Mike
Service Tech/ Installer
High School or GED
149 satisfied customers
I replaced my thermostat with a honeywell rth2300. It worked
I replaced my thermostat with a honeywell rth2300. It worked fine for a while, but this morning it stop working. The burners fire up and then shut down. NO heat. But when I manually jump the heating c… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
596 satisfied customers
I just bought a 24V transformer, particularly a Honeywell AT40,
I just bought a 24V transformer, particularly a Honeywell AT40, for an American Standard Freedom 78 furnace. The transformer blew after I changed the circuit board which is a White Rodgers Universal o… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,181 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

7,634 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

1,024 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.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x