HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Older dial themostat spears to have stopped working. I

Customer Question
Older dial themostat spears...

Older dial themostat spears to have stopped working. I turned off, adjusted and turned back on but it's not auto coming back on at higher temp. What should I try?

Contractor's Assistant: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?

Think the thermostat. I had furnace checked/raired last year. Thermostat was working until just now

Contractor's Assistant: Do you plan on doing the work yourself?

O was hoping for you to tell me some things to try before calling someone

Contractor's Assistant: Anything else we should know to help you best?

Just that its the older round thermo with switch for air/heat and numbers on top and bottom

Submitted: 7 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 4 minutes by:
12/27/2017
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 24,581
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Verified

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.

You can try connecting the heat wires/leads on the thermostat together. On a more modern thermostat these would be the leads connected to the R (RH) & W terminals. On an old T87 (sounds like what you're describing) I don't recall if there are R & W terminals. The wire colors are usually (not always) red & white.

Ask Your Own HVAC Question
Customer reply replied 7 months ago
I asked for a call but is it going through?
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

I don't see a call request, I'll post another offer. Accept it, give me your phone number and I'll call

Ask Your Own HVAC Question
Customer reply replied 7 months ago
Can you email me thru this U am getting frustrated and don't know about wires or th apart
Customer reply replied 7 months ago
It's not working..just email me
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

You have to remove the thermostat body from the back plate. First turn the thermostat switch on the back plate to OFF. Pull off the outer ring on the front of the thermostat. You'll see there are 3 slotted screws at approximately 2, 6 & 9 o'clock. Back those screws off and the thermostat body will release from the back plate.

Ask Your Own HVAC Question
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

The wires are connected to the back plate. Tell me what you see

Ask Your Own HVAC Question
Customer reply replied 7 months ago
I see 2 tiny screws need to find awful tiny screwdriver. Is that what you mean
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

There are 3 slotted (not the phillips screws) screw. Yes they are small

Ask Your Own HVAC Question
Customer reply replied 7 months ago
Just don't have small envy screwdriver for leverage needed. I'm putting faceplate ba c on. Let's r something wrong renovin g
HVAC Technician: Rick, HVAC Supervisor replied 7 months ago

I don't understand you last sentence

Ask Your Own HVAC Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a hvac technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 7,426
7,426 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

7,426 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 >

Related HVAC Questions
I have Luxaire forced air gas furnace. We had a nor'easter
Hi...I have Luxaire forced air gas furnace. We had a nor'easter yesterday and basement took on water. Some around the furnace. The furnace worked fine until later last night. When it was running is st… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
The blower on my Lennox "pulse" warm air gas fired furnace
The blower on my Lennox "pulse" warm air gas fired furnace won't shut off. I set the thermostat to "off" and the on/auto fan switch to "auto" … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I have an older Honeywell round thermostat (+/- 25 years
I have an older Honeywell round thermostat (+/- 25 years old) that will only go on if I set the dial at least 5 to 8 degrees higher than the room temperature. If I set it at 70 F. before going to bed … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I have a 28 year old Rheem horizontal attic gas hot air
I have a 28 year old Rheem horizontal attic gas hot air furnace. When the temps drop below freezing my heater will not work while the blower mode is set for auto on the thermos. How ever if I put the … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
We put in an outdoor wood furnance to heat our home with wood,
We put in an outdoor wood furnance to heat our home with wood, also have a heil 19 seer heat pump, model#HCH936GKA100, SERIAL#F122309897, we put a relay on unit to turn only fan on when wood furnance … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
My furnace is constantly cycling..... run for several minutes;
My furnace is constantly cycling..... run for several minutes; turn off; then within a few minutes hear pilot lite/furnace kick on. Changed filters; no help. Temp keeping up with thermostat. I am disa… read more
Tim H
Tim H
Lead building engineer
Vocational, Technical or Trade Scho
1,922 satisfied customers
hi, I installed a Honeywell rth2310b on my miller forced
hi, I installed a Honeywell rth2310b on my miller forced air furnace about 2 years ago. Most of the time it works fine, but on occasion I come home and the thermostat indicates that it has called for … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Hi. I have an Armstrong Natural Gas Furnace model# XXXXX
Hi. I have an Armstrong Natural Gas Furnace model# XXXXX A J27, serial #R78755. 1) Is there a muanual available? 2) This furnace cycles on/off about every 60 seconds. Any suggestions as to what would … read more
servtech50
servtech50
HVAC/R service tech
296 satisfied customers
I have a GMS9/GCS9 furnace LED is lit contnuously but the themostat
I have a GMS9/GCS9 furnace LED is lit contnuously but the themostat is working. Furnace was lighting for 5 sec and shutting down. I checked the air intake, pulled the covers to see if there was anythi… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I wish a bigger activation spread - instead of triggering furnace
I wish a bigger activation spread - instead of triggering furnace with one degree of spread, i want three degrees. For example, i want temperature at 55, but don't want trigger to happen until 54, and… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
596 satisfied customers
Im installing a new Honeywell TH8320U1008 thermostat that
I'm installing a new Honeywell TH8320U1008 thermostat that will run a Armstrong Air Concept 1000 heat pump. The old mercury switch thermostat had 7 wire connected to it. yellow to y green to g red to … read more
Richard
Richard
District Technical Manager
Vocational, Technical or Trade Scho
1,416 satisfied customers
I have a 2 zone heating/cooling system. Uses trol -a- temp
I have a 2 zone heating/cooling system. Uses trol -a- temp mini zone unit. 2 thermostats. Lennox Elite forced air. Approx. 13 years old. Chronotemp therm0. went bad. I purchased a Vision Pro 8321 unit… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
I have an older lennox furnace the blower fan will not stop
I have an older lennox furnace the blower fan will not stop running Only if I flip the circuit breaker The themostat is new the heat comes on and off to mantain temperature I just can not get the fan … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Hi. I am replacing an air conditioning system and I really
Hi. I am replacing an air conditioning system and I really like my round Honeywell thermostat with a moveable heat/air lever and fan/auto in the back of the unit and a temperature dial in the front. T… read more
HVAC_Doug
HVAC_Doug
Vocational, Technical or Trade Scho
I have a forced hot air, gas fired furnace controlled by an
I have a forced hot air, gas fired furnace controlled by an analog thermostat, like the one posted on your web-page. When I set the temperature above what the room is at expecting the heater to come o… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
I have a Rinnai RHFE-556WTA Wall Furnace. Using a separate
I have a Rinnai RHFE-556WTA Wall Furnace. Using a separate digital thermometer, the room temp is consistantly 6 degrees lower than the furnace set temp when the furnace is at rest at the set temp. Eco… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
I have an oil fired forced air furnace. On the side or the
I have an oil fired forced air furnace. On the side or the furnace is a Honeywell control that has a white knob on it that I can push to manually turn on the higher the speed of the 2 speed fan. When … read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
I run my forced air diesel furnace for long enough to heat
I run my forced air diesel furnace for long enough to heat my home and then turn the thermostat down. I have no fan switch. The fan will cycle on every 1-2 minutes and run for 10-15 seconds and then c… read more
Al
Al
Master Service Technician
Votec, College, Master Electrical S
24 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