HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Connect one-on-one with {0} who will answer your question

Related HVAC Questions
My t-stats batteries died this morning. I replaced them and
Hi. My t-stats batteries died this morning. I replaced them and the AC is working, however the fan won't shut off. There is no "Off" option for the fan on the t-stat. … read more
Tamar D
Tamar D
Mechanic II
Vocational, Technical or Trade School
4,217 satisfied customers
We just installed a mini split unit. Two 9,000 BTU and One
We just installed a mini split unit. Two 9,000 BTU and One 18,000 BTU, when you set a set point the unit will not shut off and the fan continues to run. Not sure on how the set points work, could you … read more
The-HVAC-Guy
The-HVAC-Guy
HVAC Technician
Vocational, Technical or Trade School
42 satisfied customers
My Lennox G40 works and heats good but the fan continues to
My Lennox G40 works and heats good but the fan continues to blow "cold air" after the flame goes out because it had reached temperature. And it (the fan) cannot be switched off without un[plugging the… read more
Gaztech1
Gaztech1
Technician
Vocational, Technical or Trade School
2,131 satisfied customers
I have Lennox CBS 18-51-3p electric furnace with a/c. In the
Hello. My name is***** have Lennox CBS 18-51-3p electric furnace with a/c. In the a/c mode the blower comes on for approximately 5 minutes the trips the fuse in the transformer. While it is running th… read more
Gaztech1
Gaztech1
Technician
Vocational, Technical or Trade School
2,131 satisfied customers
I have an Aube thermostat (TH146-P-2H1C) and a Lennox heat
I have an Aube thermostat (TH146-P-2H1C) and a Lennox heat pump and NG furnace, all installed in 2007. Lately, the fan runs mostly continuously (sometimes it will shut off but not with any regularity)… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,042 satisfied customers
I have a Lennox CB19-51-3P-TXV that is starting to lose its
I have a Lennox CB19-51-3P-TXV that is starting to lose its ability to cool the air. It cannot keep the temperature at or below our thermostat setting of 79 - any ideas are appreciated … read more
Phil
Phil
Consultant to Engrs, Govt & Contractors
Degree, Mech Engr Technology
12,010 satisfied customers
I have a Trane XE70 circa 1991. The burner lights but the
I have a Trane XE70 circa 1991. The burner lights but the blower does not start and the furnace shuts down. … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,486 satisfied customers
I have a chromalox HAF-320 electric furnace. 240V, 20kW. Trying to figure out what sequenc
I have a chromalox HAF-320 electric furnace. 240V, 20kW. Trying to figure out what sequencers are in it. I have 4 different part numbers -R4, they dont match what is in it. Installed left to right are… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,042 satisfied customers
i have a c16-28w-1ff lennox pulse furnace from around 1991.
i have a c16-28w-1ff lennox pulse furnace from around 1991. We just bought this house, and the hvac contractor says we are in danger because this is a faulty model that they 'never recalled but should… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,042 satisfied customers
having problem with ac heat works. the blower will run in the
having problem with ac heat works. the blower will run in the on position but shuts things down when switched over to auto. i have pulled the t-stat wire nutted the red and green together and fan runs… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
13,844 satisfied customers
I have a 1989 payne heater,fire will come on but sometimes
I have a 1989 payne heater,fire will come on but sometimes blower will not and unit will do nothing until its unpluged and pluged back in,tansformer overheating?,bad board or just bad blower fan relay… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
13,844 satisfied customers
lennox pulse 21q intermittent run. Checked Door switch, no
lennox pulse 21q intermittent run. Checked Door switch, no red light on the board, check all connections by backing off the screw and re tightening, gently tapped the relays located on the gas the act… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
13,844 satisfied customers
I have an E-11Q3-561-3P Lennox electric furnace. I was
I have an E-11Q3-561-3P Lennox electric furnace. I was told this summer when we went to use the A/C for the first time that the "sequencer" was out-- they flipped off the circuit breakers to the heati… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,042 satisfied customers
Dear Sir, I have a Goodman GMNTE120-5 furnace. The pilot
Dear Sir, I have a Goodman GMNTE120-5 furnace. The pilot fan keeps operating constantly even in off position of the thermostat. A/C worked fine in summer. I just shut off fire shut off switch when A/C… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,042 satisfied customers
ive got a Lennos G50UH furnace. THe fan speed is too high.
i've got a Lennos G50UH furnace. THe fan speed is too high. I seem tor ecall there is a junction box (five different settings) for hooking up different speeds for the fan. Does this make sense, and wh… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,042 satisfied customers
my lennox furnance induce fan will come on, flame will ignite
my lennox furnance induce fan will come on, flame will ignite and come on but, blower will not start. blower has been tested and it is good.… read more
BARRY
BARRY
owner
Associate Degree
56 satisfied customers
Hi, I have a Lennox CB 18-51 hot air furnace and want to install
Hi, I have a Lennox CB 18-51 hot air furnace and want to install a humidifier on it and power the humidifier at the same time the fan is running. But I cannot figure out where to get 110 vac power off… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,042 satisfied customers
I have a lennox furnace and I connected wires from my t-stat
I have a lennox furnace and I connected wires from my t-stat to the furnace. I ran a red wire to R from the t stat to the furnace, and a white wire to the W from the t stat to the furnace, and I ran a… read more
Rick or Nick in Texas
Rick or Nick in Texas
General Manager-Lead Tech
Own and run HVAC business 29yrs
44 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:

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.

Jerry

Jerry

Service Technician

576 satisfied customers

HVAC Technician. Hearth Products Specialty

A-1 Tech

A-1 Tech

Service Manager

526 satisfied customers

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

Thehvacguy

Thehvacguy

LIC HVAC,Plumber

426 satisfied customers

Certified HVAC Universal Technician,Lic plumbing contractor, 28 yrs exp

Drcool

Drcool

HVAC Technician

264 satisfied customers

i have been an A/C tech for the past 30 Years. working on window types, split type, and package

N4IEA

N4IEA

NATE Certified; HVAC Technician

227 satisfied customers

Retired, HVAC / Electrical Technician / Contractor 35-years Experience.

< 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