HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
The Honeywell Vision Pro IAQ thermostat is blank. Only 5
The Honeywell Vision Pro IAQ thermostat is blank. Only 5 blank boxes at the bottom of the screen … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
Honeywell visionpro 8000 is blank except for 4 boxes on LCD
honeywell visionpro 8000 is blank except for 4 boxes on LCD panel which usually show home/fan/system/menu. No worded in those 4 boxes. Just boxes themselves. Thermostat is Not battery operated. Checke… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I have a Honeywell thermostat that's screen was totally
I have a Honeywell thermostat that's screen was totally blank when I arrived home. I replace the battery Witt a new one. I went downstairs where the Bryant HVAC unit is located. I saw nothing that eve… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,867 satisfied customers
I have a honeywell th9421c1004 that turned up the heat on
I have a honeywell th9421c1004 that turned up the heat on its own to 75 degrees and then just stopped working. It has only 3 wires labeled 123 on the mounting plate and Data - R - C on the thermostat … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 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
13,867 satisfied customers
Just got home and saw screen on Honeywell thermostat is
Hi there. Just got home and saw screen on Honeywell thermostat is blank. I changed batteries but still no screen. Fan on system is running. Any ideas? … read more
Webb-Guy
Webb-Guy
Maitenance Supervisor
Associate Degree
3,697 satisfied customers
Honeywell thermostat. It started beeping loud about 11 pm,
Honeywell thermostat. It started beeping loud about 11 pm, Removed face and changed batteries; no results. Please help.… read more
HVAC Guru
HVAC Guru
HVAC TECH
19,186 satisfied customers
Hi there! My Honeywell thermostat display went blank a couple
Hi there! My Honeywell thermostat display went blank a couple weeks ago. I put in some new batteries (well, they were new to the thermostat, but not 100% new), and it started working again. It just we… read more
HVAC Guru
HVAC Guru
HVAC TECH
19,186 satisfied customers
We have the Vision PRO TH8000 Series from Honeywell. Our heat
We have the Vision PRO TH8000 Series from Honeywell. Our heat is not working downstairs and when I turn it on it initially says Heat on, then switches to Aux heat and no heat is coming on.… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
My lennox thermostat looses power and turns off. Do I need
My lennox thermostat looses power and turns off. Do I need to change a bettery? It is hard wired.… read more
joeydelia
joeydelia
HVAC-R Tech supermarket refrigeration
182 satisfied customers
I have a WR thermostat model number 1F80-361. The temp began
I have a WR thermostat model number 1F80-361. The temp began reading 25-30 fahrenheit in a 65-70 environment, so I changed the batteries despite no low-battery icon. Now it reads 97 (feels about 68). … read more
Heath
Heath
Vocational, Technical or Trade Scho
1,027 satisfied customers
Where Can I get installation instructions for a TOTALINE programmable
Where Can I get installation instructions for a TOTALINE programmable thermostat P374-1100 EZ? Is there a battery inside? The display screen is blank.… read more
Rick
Rick
Supervisor
24,889 satisfied customers
WE just changed the batteries in our Honeywell thermostat because
WE just changed the batteries in our Honeywell thermostat because the screen was blank. With the new batteries, the unit is running again, but the screen is still blank.… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
We have a 3611 thermostat which is now showing a blank screen.
We have a 3611 thermostat which is now showing a blank screen. we've tried circuit breakers, and they're fine. Are there batteries in this unit that need to be changed? I can't find them if they are. … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,867 satisfied customers
Got home from a movie and the thermostat display was blank.
Got home from a movie and the thermostat display was blank. I checked the circuit beakers in our main panel and all appear to be on. I put batteries in the thermostat (apparently none were ver install… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I am replacing a Honeywell 3611 programable thermostat for
I am replacing a Honeywell 3611 programable thermostat for a heat pump, because the display went blank and heat not coming on. I am replacing it with a Honeywell RTH7600 programmable thermostat. When … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
Hello, My Honeywell thermostat just went out. The display
Hello, My Honeywell thermostat just went out. The display is blank, there is no error message. I have checked the circuit breaker. Is there anything else I should check?… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,867 satisfied customers
I have a Honeywell Chronotherm IV Plus thermostat and the displays
I have a Honeywell Chronotherm IV Plus thermostat and the displays is completely blank. I had an AC technician come out yesterday and the unit and the thermostat was working fine. It has been cutting … read more
Francis
Francis
shop owner
Bachelor's Degree
1,974 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