HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Connect one-on-one with {0} who will answer your question

Related HVAC Questions
I have a Honey HZ311. a honeywell thermostat on first and
I have a Honey HZ311. a honeywell thermostat on first and second floor. Downstairs cools okay but upstairs does not cool … read more
Tamar D
Tamar D
HVAC Mechanic II / Service Tech
686 satisfied customers
The AC is not on. Thermostats appear to be working. Outdoor
The AC is not on. Thermostats appear to be working. Outdoor compressor is not spinning. I tried the furnace unit (raising the thermostat to 83F) and no heat either. … read more
Tamar D
Tamar D
HVAC Mechanic II / Service Tech
686 satisfied customers
We have an HZ311 system and an Ecobee thermostat on the main
Hi there, we have an HZ311 system and an Ecobee thermostat on the main floor. We have a Honeywell thermostat on the second floor but not getting air through the second floor vents as of yesterday. … read more
Tamar D
Tamar D
HVAC Mechanic II / Service Tech
686 satisfied customers
I have Honeywell HZ311 and trying to install Nest Learning
I have Honeywell HZ311 and trying to install Nest Learning Thermostat 3rd Gen. The upstairs installation went well. The old thermostat had 5 wires (Yellow, White, Green, Blue, and Red). The downstairs… read more
Brian B HVAC
Brian B HVAC
47 satisfied customers
My fan at downstair not working after a duct cleaning.
my fan at downstair not working after a duct cleaning … read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
551 satisfied customers
My Honeywell HZ311 zone controller is showing a,red light
My Honeywell HZ311 zone controller is showing a,red light for zone 3 and the AC is not working on the second and third floors. This is a new house in 2016 and everything has been fine until Sunday. Th… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
772 satisfied customers
I have a Lennox HVAC dual zone with a damper control board
I have a Lennox HVAC dual zone with a damper control board with 4 relays on it and 5 connections labeled stat1,stat2,damp1,damp2 and furnace. The original symptom was that when the upstairs thermostat… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
8,427 satisfied customers
Similar situacional to the above post. Connected available
http://www.justanswer.com/hvac/8rs02-i-m-trying-connect-nest-hz311-needs-common.htmlSimilar situacional to the above post. Connected available Common wire to two nests and from furnace terminal to C o… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,029 satisfied customers
I'm trying to get my hz311 system working. A week or 2 now.
Yes..I was following along one of the other tech assistant's messages, all the way to the control panel and another wire that I could possibly use..then the other guy said he didn't have a wire … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,148 satisfied customers
I am trying to attach a Nest to an HZ311 two zone system. My
I am trying to attach a Nest to an HZ311 two zone system. My original Honewell panel just had 3 wires going to it - red, green, and white, labeled 1, 2, and 3. Nest gives me an error saying that the R… read more
Appliance Guru
Appliance Guru
21,021 satisfied customers
My Trane XV95 AC system is dual zone and controlled by
My Trane XV95 AC system is dual zone and controlled by Honeywell HZ311 zone control board. Both electronic themostates are set to cool. Only the second zone is working. Zone 1 light is Red, Zone 2 lig… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,148 satisfied customers
I have a Lenox act with Honeywell HZ311 truezone; the
I have a Lenox act with Honeywell HZ311 truezone; the downstairs is zone 1 and the two smaller bedrooms upstairs are zone 2; the ac unit kept freezing up; the filters are all clean; freon levels and p… read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
551 satisfied customers
I am replacing the old Rodgers with a Honeywell RTH6500
I am replacing the old White Rodgers with a Honeywell RTH6500 Wi-Fi. The old one does not have a C wire. I connect the existing B wire to C terminal and the O wire to O/B and the rest of the wires as … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,148 satisfied customers
I have upstairs and downstairs w/ seperate thermostats. Upstairs
I have upstairs and downstairs w/ seperate thermostats. Upstairs works fine. Downstairs thermostat says its working but no air.… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
9,529 satisfied customers
I have a Lennox 80MGF4/5 100A-5 furnace and A/C unit installed
I have a Lennox 80MGF4/5 100A-5 furnace and A/C unit installed in my home, along with a Bryant Zone Perfect two-zone control unit that provides zone control for the upstairs and downstairs. The Bryant… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a Honeywell EMM-3U MiniZone Panel on a heat-pump system
I have a Honeywell EMM-3U MiniZone Panel on a heat-pump system with 2 active zones, downstairs (zone 1) and upstairs (zone 2), and nothing connected to zone 3. Whenever the downstairs (zone 1) thermos… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
8,427 satisfied customers
I have a two zone forced air heating system with air conditioning
I have a two zone forced air heating system with air conditioning in my house. The zones are upstairs and downstairs. The system is about 12 years old. I use Honeywell thermostats for both zones. Down… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
Open limit device error on my furnace with no heat upstairs
Have gas furnace with Honeywell MiniZone controller. No heat or flow is getting to upstairs. Red light is showing on controller for Zone 1 (upstairs) and system, green light for Zone 2 (downstairs). T… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 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

8,427 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

1,029 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.

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

A-1 Tech

A-1 Tech

Service Manager

526 satisfied customers

I have been in the HVAC business for over 40 years.

< 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