HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
MY thermostat screen is blank and the unit is not working. I
MY thermostat screen is blank and the unit is not working. I changed the batteries. No difference. I do not have the manual booklet that came with the unit. Can you help me trouble shoot to find the p… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,015 satisfied customers
The fan works on my thermostat, but the screen is blank. I
The fan works on my White Rogers thermostat, but the screen is blank. I have changed the batteries, but wince the fan works, I doubt that is the problem. … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,008 satisfied customers
My screen suddenly went black we changed batteries and
My screen suddenly went black we changed batteries and checked circuit breakers no change not sure what to do next fairly new system just moved into this house… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
I know nothing about A/C and heating...but here goes. Our
I know nothing about A/C and heating...but here goes. Our thermostat just went dead. Screen is blank. It's Carrier TP PAC01 … read more
Scott
Scott
Self Employed HVAC Service Technician
Associate Degree
400 satisfied customers
My thermostat screen is blank. I changed the batteries and
My thermostat screen is blank. I changed the batteries and it's still blank. … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,368 satisfied customers
My batteries went dead and I replaced them with carbon zinc
My batteries went dead and I replaced them with carbon zinc AA not knowing I should have used alkaline AA batteries , I just changed over to alkaline and didn't switch the system to OFF then I switche… read more
Rick
Rick
Supervisor
25,251 satisfied customers
I'm house sitting so it's not my furnace. I left for awhile
I'm house sitting so it's not my furnace. I left for awhile and when I came home I noticed it was getting colder in here. I checked the Honeywell 5000 thermostat on the was and it is indeed getting co… read more
Webb-Guy
Webb-Guy
Maitenance Supervisor
Associate Degree
3,905 satisfied customers
My Carrier thermostat screen is blank. Nothing was running,
My Carrier thermostat screen is blank. Nothing was running, no heat. So I went to turn on /up the heat when I noticed the blank screen … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,015 satisfied customers
I have a Honeywell, RTH7600, RET97 programmable thermostat.
I have a Honeywell, RTH7600, RET97 programmable thermostat. No problem for 2 years. Had to change to new batteries and after changing to heat and temp, nothing happens. I hear the clicking for the hea… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
COOLING WASN'T WORKING. LOOKED AT THERMOSTAT, IT WAS BLANK,
COOLING WASN'T WORKING. LOOKED AT THERMOSTAT, IT WAS BLANK, NOTHING SHOWING. TOOK IT OFF THE WALL AND LOOKED AT THE BACK. THE 3 BATTERIES WERE CHORODED LIKE I HAVE NEVER SEEN BEFORE. CLEANED THE TERMI… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,938 satisfied customers
white-rodgers 1F89-211 blank screen no heat at first the the heat was working and there wa
white-rodgers 1F89-211 blank screen no heat at first the the heat was working and there was the backlight I just couldn't see the screen looked at the instruction it says if screen blank you can pop t… read more
Appliance Guru
Appliance Guru
18,836 satisfied customers
My thermostat screen went blank. I'm wondering that I need
My thermostat screen went blank. I'm wondering that I need to change the batteries? Correct?… read more
Appliance Guru
Appliance Guru
18,836 satisfied customers
I hit the up arrow to raise the temperature 1 degree and I
I hit the up arrow to raise the temperature 1 degree and I accidentally hit the box a little hard. the screen went dark and I don't know how to turn the themostat back on… read more
Appliance Guru
Appliance Guru
18,836 satisfied customers
My thermostat is flashing but cannot change programs or perform
My thermostat is flashing but cannot change programs or perform any touch function other than the current Hold at 74 cool and heat at 61. We changed the batteries and no response. It is a Honeywell Ch… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
10,083 satisfied customers
I have the RTH230B t-stat and just changed batteries. Im getting
I have the RTH230B t-stat and just changed batteries. I'm getting a blank display on the cooling setting and time (12:00) and temp on the heat setting. I'm trying to set the cooling but have a blank s… read more
Heath Moyer
Heath Moyer
1,056 satisfied customers
We have model #1F78 thermostat. Weve had our thermostat in
We have model #1F78 thermostat. We've had our thermostat in the off mode, today due to the weather we turned it to the heat mode. Nothing happened. We tried the program button, run button, hold button… read more
Heath Moyer
Heath Moyer
1,056 satisfied customers
When I raised the set temperature on my thermostat the screen
When I raised the set temperature on my thermostat the screen showed the temperature and Hold, then changed to Hold -AC. I followed manual instructions to change the batteries, but removing the screws… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
My power was out for some time yesterday and when it was restored
My power was out for some time yesterday and when it was restored my TH8000 thermostat has the light on continueously and all commands are showing so that the screen is full of stuff but none work. Th… read more
Heath Moyer
Heath Moyer
1,056 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

10,083 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