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 Honeywell thermostat has been periodically showing a
My Honeywell thermostat has been periodically showing a screen to set the time. 1. Why? 2. I don't want to set the time. 3. Will the heat continue to come on if the “set time” screen is showing? I liv… read more
Jerry
Jerry
Service Technician
High School or GED
575 satisfied customers
Thermostat would not hold temp when I hit the hold button.
Thermostat would not hold temp when I hit the hold button. Changed batteries and now there is nothing on the screen. … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,794 satisfied customers
Changed the batteries in my honeywell thermastat and now the
changed the batteries in my honeywell thermastat and now the whole thing is blank … read more
Phil
Phil
Consultant to Engrs, Govt & Contractors
Degree, Mech Engr Technology
11,520 satisfied customers
My thermostat display isn't working. Something specific to
my thermostat display isn't working JA: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat? Customer: something specific to the thermostat JA: Do you … read more
Rick
Rick
Supervisor
31,624 satisfied customers
Got a 97-4543 Honeywell....installed in 1992...ran like a
Got a 97-4543 Honeywell....installed in 1992...ran like a charm for 24 years....replaced batteries once a year as instructed...after last replacement, thing ran great but only for 60 days, then "LoBat… read more
Webb-Guy
Webb-Guy
Maitenance Supervisor
Associate Degree
7,814 satisfied customers
Carrier inffinity is starting to malfunction. Controller
Carrier inffinity is starting to malfunction. Controller turns completely off (non-responsive) and later will re-start itself. Also the blue LED for cooling is slowly pulsing. Trying to look up what t… read more
Webb-Guy
Webb-Guy
Maitenance Supervisor
Associate Degree
7,814 satisfied customers
I just noticed that my thermostat is showing a "set"
I just noticed that my thermostat is showing a "set" temperature of 70, and I have it pre-programmed to 73 at this time. I put in new batteries, and it is staying at this set temp of 70. I tried to re… read more
Jason Whatley
Jason Whatley
61 satisfied customers
Woke up this morning to a cold house. Found t-stat blinking
Woke up this morning to a cold house. Found t-stat blinking HOLD and the time was incorrect, so I reset time, oddly all my presets are still programmed in. Set to AUTO FAN and HEAT. Fan kicks on for e… read more
airheatman
airheatman
HVAC Technician
6 years college
13,818 satisfied customers
I just replaced batteries in my honeywell thermostat and now
I just replaced batteries in my honeywell thermostat and now the LCD won't turn on? We have two units and I took the cover off the functioning thermostat to see if I did something incorrectly. Now bot… read more
jHVAC
jHVAC
131 satisfied customers
My thermostat said "low battery" so I replaced the batteries
My thermostat said "low battery" so I replaced the batteries and is says the same thing. I cannot see the temperature due to the message on the screen. Do I need to reset something after replacing the… read more
airheatman
airheatman
HVAC Technician
6 years college
13,818 satisfied customers
Hi. I have a T8411R 1002 (2) thermostat whose screen just went
Hi. I have a T8411R 1002 (2) thermostat whose screen just went blank. I've tried removing it from the wall and replugging it a few times with no result. I've reset the circuit breakers that say ac and… read more
Appliance Guru
Appliance Guru
23,391 satisfied customers
icomfort touch thermostat. Screen went black for about 15 minutes,then
icomfort touch thermostat. Screen went black for about 15 minutes,then came back onand operated for about 8 hours. It went black again and seems to stay black. All breakers are set. Is this a battery … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,468 satisfied customers
Our thermostat suddenly lost its display and is not functioning.
Our thermostat suddenly lost it's display and is not functioning. Do these thermostats run on batteries? A sticker inside reads T8411R 1002 (2).… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
15,045 satisfied customers
Hello, my thermostat digital screen in blank and it is not
Hello, my thermostat digital screen in blank and it is not cooling. It must have power to it because I can turn on the fan by sliding it from auto to fan an it comes on… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,468 satisfied customers
I have a furnace with a fan control board, Honeywell ST9103A
I have a furnace with a fan control board, Honeywell ST9103A 1036. The closest replacement I can find is an ST9103A 1002 that looks almost identical. What is the significance of the numbers 1002 vs 10… read more
Matthew
Matthew
Service tech
Bachelor's Degree
2,014 satisfied customers
My batteries in the 1F97-71 programmable thermostat went dead
My batteries in the 1F97-71 programmable thermostat went dead and when I replaced them the screen did not show anything. I put it back on the wall and the back lighting does not come on when I push th… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,468 satisfied customers
A couple of days ago the temperature in my house started to
A couple of days ago the temperature in my house started to hold at 63 degrees when the thermostat is set at 70. I have tried changing the thermostat and it stays at 63. The furnace seems to cycle on … read more
Tom
Tom
Journeyman HVAC/R service tech
Vocational, Technical or Trade Scho
770 satisfied customers
I have a 4 floor condo with 4 zones. I I a Honeywell total
I have a 4 floor condo with 4 zones. I have a Honeywell total zone 4 control panel. The problem is that one of my digital thermostats went blank. The thermostat is a Honeywell T8000C 1002 2. There is … read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 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

575 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