HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

Thermostat will not light or function even after changing

Customer Question
batteries....
Thermostat will not light or function even after changing batteries.
Submitted: 2 years ago.Category: HVAC
Ask Your Own HVAC Question
Answered in 55 minutes by:
6/11/2015
HVAC Technician: Tim H., HVAC Professional replied 2 years ago
Tim H.
Tim H., HVAC Professional
Category: HVAC
Satisfied Customers: 3,971
Experience: Experienced in all aspects of HVAC, both residential and commercial.
Verified
Hi, I'm Tim and I'm an HVAC expert here to help answer your question(s). Please provide all the information I ask for since I'm not onsite. At the end of our dialog you will be asked to rate my service, but please wait until then and all your question(s) have been answered satisfactorily. Thanks for your business!
Do you have 24 volts AC as measured from the red wire on R to any other wire up at the stat?
Ask Your Own HVAC Question
Customer reply replied 2 years ago
I do not understand your reply. I do not know where the red wire is and do not have equipment to measure volts. We have a typical airconditioning/heating system.
HVAC Technician: Tim H., HVAC Professional replied 2 years ago
I would need to know if there is 24 volts up at the thermostat wires. This will quickly help me determine if it's a bad thermostat or some other issue.
Other things to check:
Is the switch at the furnace turned on?
Blower door on securely?
Furnace circuit breaker tripped?
Ask Your Own HVAC Question
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6,938
6,938 Satisfied Customers
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial

Phil is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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

6,938 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

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

953 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

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 >

Related HVAC Questions
Heating system working but is making a buzzing type sound
Heating system working but is making a buzzing type sound every minute or so. It sort sounds like it's trying to start but it's already running. You can hear the sound at the electrical panel inside o… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have an electric heating system with a heat pump, and a
I have an electric heating system with a heat pump, and a Totaline thermostat model P274-1200. I received a NEST Pro thermostat that I would like to install. I want to make sure I have the wiring corr… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a waterfurnace geothermal heating system. I need
I have a waterfurnace geothermal heating system. I need someone in the Minneapolis area to come to my house and check the fluid temp and pressure. It runs a lot in cold weather and my house feels cold… read more
Phil
Phil
Mechanical Engineer
6,938 satisfied customers
I have an issue with my heating system and cant deteremine
I have an issue with my heating system and cant deteremine where the problem is. I have replaced both taco power heads and now my basic thermostat and still does not have heat when the tstat calls for… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Honeywell AC/Heat system [new]. I set the
Hello, I have a Honeywell AC/Heat system [new]. I set the temperature at 70 but the room temperature does not seem to move towards that target. Room temperate stays at 56. what to do? … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
My heating system will run about three min. then shut off.
my heating system will run about three min. then shut off. why … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Turned off circuit breaker while furnace running ... turned
turned off circuit breaker while furnace running ... turned on circuit breaker ... furnace did not come back on ... got message system malfunction outside sensor error on carrier infinity 96. read you… read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
387 satisfied customers
I have a York heating system the power board has an red led
I have a York heating system the power board has an red led flashing 3x … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
Within a day of turning on our home heating system for the
Within a day of turning on our home heating system for the cold weather months, I noticed dark streaks beginning to appear down the front of our kitchen cabinets and also dark black spots that looked … read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
387 satisfied customers
MY STOVE HAS C01 DISPLAYED I TURNED OFF CIRCUIT BREAKER AND
MY STOVE HAS C01 DISPLAYED I TURNED OFF CIRCUIT BREAKER AND IT RESET FOR A TIME THEN DISPLAY CAME BACK UP … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have a Heil CA5536VKD2, circuit breaker trips when it
i have a Heil CA5536VKD2, circuit breaker trips when it turns on compressor runs for like a second then trips bad compressor? … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I turned the circuit breaker off to my AC to replace a
I turned the circuit breaker off to my AC to replace a thermostat with a NEST thermostat. When finished, I turned the CB back on. No power. I put the old thermostat back on and still no power at therm… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
Will a weak capacitor trip the circuit breaker. Today only
well I can tell you I took off a fan motor that had 3 wires and replaced it with one with 4 wires… read more
Phil
Phil
Mechanical Engineer
6,938 satisfied customers
I woke up this morning to a tripped furnace circuit breaker,
I woke up this morning to a tripped furnace circuit breaker, I reset it and went up to the furnace and also noticed a burning smell and a humming noise.… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
My HVAC is not working. The AC circuit breaker trips as soon
my HVAC is not working. The AC circuit breaker trips as soon as the, I guess, the outside unit try to start … read more
WCohn
WCohn
Journeyman Plumber
Journeyman License
1,349 satisfied customers
The circuit breaker keeps shutting off when the Rheem
The circuit breaker keeps shutting off when the Rheem furnance/air conditioner tries to come on. What is our problem? We just had a new capacitor put in about two weeks ago. … read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
200 satisfied customers
What size amp circuit breakers needed for lennox heat pump
what size amp circuit breakers needed for lennox heat pump 14hpx-036-230-21 and Lennox air handler cby25uh-036-230-10? … read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
7,891 satisfied customers
Circuit breaker cutting off no ac or ac will not run,
circuit breaker cutting off no ac or ac will not run … read more
HvacmanSean
HvacmanSean
Owner
HVAC
229 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.

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