HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

Our Honeywell thermostat was set to 72 degrees cool- and

Customer Question
when I went upstairs the...
Our Honeywell thermostat was set to 72 degrees cool- and when I went upstairs the heat was blowing and the temperature at the zone was reading 99. Any ideas how this could have happened?
Submitted: 1 year ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 18 minutes by:
5/18/2016
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,766
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified
Hello, My name is***** many zones are on this system? 1 system and more than one thermostat?
Ask Your Own HVAC Question
Customer reply replied 1 year ago
3 systems and 3 thermostats.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 1 year ago
thank you...this means 3 different systems ...thus no zone panel.This generally is a failure of the thermostat itself. Can you remove thermostat for a test? Take red wire from R yellow wire from Y and green wire from G and twist them all together NOTE if this is heat pump take O wire and combine also...tell me if the unit runs indoor and out.
Ask Your Own HVAC Question
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6,022
6,022 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

6,022 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
The red emergency on/off switch was accidentally turned off.
The red emergency on/off switch was accidentally turned off. After turning it back on, checking the breakers, and turning the thermostat off, then on and resetting it, I still have no heat. What else … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I changed my thermostat and then put the original back nd
I changed my thermostat and then put the original back nd not it will not light up at all … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,084 satisfied customers
I have 4 honeywell rlv4305 thermostats. they are all hot on
Hello, I have 4 honeywell rlv4305 thermostats. they are all hot on the top right corner. they are all in standby mode. Is this an issue, or are they hot, because they are not calling for heat right no… read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
198 satisfied customers
I recently had a bosch geothermal CE035 installed in my
i recently had a bosch geothermal CE035 installed in my home. i am wondering how do I change the setting to keep the auxiliary heat off longer ? … read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
198 satisfied customers
Thermostat keeps returning to 70 degrees even tho I cancel
Thermostat keeps returning to 70 degrees even tho I cancel present temp by pressing run and put a new lower temperature in and it still returns to apparently a programmed 70 which comes in during the … read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
198 satisfied customers
Furnace fan won't stop running after the heating cycle is done
My furnace fan won't stop running after the heating cycle is done. The only way to shut it down is to turn off the main power switch located near the furnace. I replaced the limit switch a while back … read more
Tim H
Tim H
Lead building engineer
Vocational, Technical or Trade Scho
1,922 satisfied customers
I have an TACO SR502 that controls 2 pumps one for zone1 for
Hello, I have an TACO SR502 that controls 2 pumps one for zone1 for Hot water loop and the other for zone2 for baseboard heat and I also have a new TACO ZVC406 that control one other pump that supply … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
My Carrier 98% efficient warm air heater does not reach
My Carrier 98% efficient warm air heater does not reach maximum fan speed in the heating mode. There is an dd - on "A" cooling coil (by Trans) added above the bonnet and the same fan turns fast enough… read more
travis webb
travis webb
tech.
2,153 satisfied customers
How do i reset the filter thingy on my thermostat?
how do i reset the filter thingy on my thermostat? … read more
travis webb
travis webb
tech.
2,153 satisfied customers
My Gibson furnace stopped working. Could you advise how I
My Gibson furnace stopped working. Could you advise how I can turn it back on? … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My 3am fuse blows up every time when I start heating my
My 3am fuse blows up every time when I start heating my house. … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have developed a continuous humming sound that I cannot
I have developed a continuous humming sound that I cannot figure out where it is coming from. It can be heard throughout the house but my neighbor who is attached on the bedroom wall does not hear it.… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
Honeywell Honeywell TH8320R1003 outdoor sensor reads -29F.
Honeywell Honeywell TH8320R1003 outdoor sensor reads -29F. Have 2 sensors both read the same. Sensor resistance is 109K … read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
198 satisfied customers
We have an old Auto Flo 244D unit with under duct mounting;
We have an old Auto Flo 244D unit with under duct mounting; it needs to be replaced and we are looking for the make /model with least changes to existing configuration. The area around furnace is tigh… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
My Hydrotherm HC-100B boiler is about 30 years, I don't know
my Hydrotherm HC-100B boiler is about 30 years, I don't know the last time the gasket Flange was change but it is leaking, I was told that by a heating company that its a 50/50 chance that if they bre… read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
346 satisfied customers
I have central AC sysyem - Spacepak airhandler, York
I have central AC sysyem - Spacepak airhandler, York affinity 3s outside unit and a Honeywell TH8100U1003 thermostat. The outdoor unit has been intermittently cooling but seemed to start working again… read more
Phil
Phil
Mechanical Engineer
6,022 satisfied customers
We have a York furnace. We have no heat. The fan is working
We have a York furnace. We have no heat. The fan is working but the burners will not fire. … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,084 satisfied customers
Lighting the pilot on my Rheem updraft is no problem but
Lighting the pilot on my Rheem updraft is no problem but after holding the button for a min. or 2 and releasing, the pilot goes out???? … read more
Rick the plumber
Rick the plumber
Owner
9,857 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