HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

My stat is dead (reads any temp it feels like!) I want to…

Customer Question
My stat is dead...

My stat is dead (reads any temp it feels like!) I want to replace it with a newer smart stat. If I follow the rewire advice I just need to know I won't blow out my circuit board.

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

Several weeks and it's been 110 plus degrees

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

Yes. Ian a general contractor and am confident I can do the required work.

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

No, I just have concerns about damaging my furnace if I don't use the darn evolution stat.!

Contractor's Assistant: Did you check the furnace's filters?

N/A

Submitted: 9 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 4 minutes by:
9/7/2017
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 9 months ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,084
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

My name is Billy.

The letters in the thermostat should be relatively the same. Can you tell me what terminals are currently used in the old thermostat? And have you obtained new thermostat yet?

Billy

Ask Your Own HVAC Question
Customer reply replied 9 months ago
bought an new stat but returned it when I saw my wiring was A B C D not the usual RGYW
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 9 months ago

Understood.

In the furnace they are other terminals available. The wires would need to be changed inside the furnace...and possibly the ac depending on how it is wired into furnace. Can you access the furnace?

Ask Your Own HVAC Question
Customer reply replied 9 months ago
there are no other wires but the condenser wiring seems to be parallel to the stat wiring.? the stat wire is only using 4 wires.
Customer reply replied 9 months ago
I can access furnace but not to easily
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 9 months ago

Ok, The stat wire is using only 4 wires but how many are in the cable?

In the furnace we usually have a choice of wiring r,g,y,w,c......or abcd with a communicating thermostat

Some systems are dedicated and we dont have a choice.

However you can get a communicating Carrier thermostat that uses a,b,c,d and is wifi.

Just Google Carrier (or Bryant) wifi communicating thermostats. These will be a direct changeout with the a,b,c,d terminals.

Billy

Ask Your Own HVAC Question
Customer reply replied 9 months ago
I'll try but I'm still leary of harming my furnace circuit board. Should I be concerned?
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 9 months ago

Your board has a 3 amp fuse to protect low voltage shorts.

AND you turn power off when swapping thermostats. The only damage on an infinity unit would be blowing the 3 amp fuse next to the led light on the circuit board..

Ask Your Own HVAC Question
Customer reply replied 9 months ago
Thanks I'll try it.
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 9 months ago

Plus if you have issues just return here...once you rate service (5 star system) you have 30 days of follow up.

Billy

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 BillyHvac Your Own Question
BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,084
23,084 Satisfied Customers
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics

BillyHvac 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

1,019 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
Goodman model ARUF182416CA LEAKING WATER. condensation is
goodman model ARUF182416CA LEAKING WATER. condensation is being blown outside drain tray along the outside of the unit. Drain tray is not overflowing. … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
Trying to find floater switch on carrier 9200 to see if
Trying to find floater switch on carrier 9200 to see if tripped the thermostat from having no power … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,876 satisfied customers
Need to know how to check a condensate drain - appears to be
need to know how to check a condensate drain - appears to be clogged … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
My ac compressor works fine but the condenser fan will
Hello, my ac compressor works fine but the condenser fan will sometimes not start automatically, especially in the morning, evening or at night. The condenser fan starts fine during the day. When it d… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
The pan beneath the AC condenser has rusted and if the AC is
The pan beneath the AC condenser has rusted and if the AC is running, leaks into the ceiling beneath. This part of the AC is in the attic. Is the pan replaceable and how costly is this repair. … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Needing a replacement compressor for a carrier 38YRA024310,
Needing a replacement compressor for a carrier 38YRA024310 … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Our condensate drain in not working properly. It has been
Our condensate drain in not working properly. It has been cleaned out and is clear. There is a cleanout before the p-trap. It seems that when the cap is removed, the system drains properly. Any sugges… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My blower fan does not run. The condenser and condenser fan
My blower fan does not run. The condenser and condenser fan run fine but the air handler fan does not. The squirrel cage turns freely and makes weak attempts to turn but does not run so it seems there… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I am installing a new Goodman condensing unit, GSXC180481.
I am installing a new Goodman condensing unit, GSXC180481. All plumbing checks out ok. Have connected to carrier furnace and thermostat using 4-wires, Y1, Y2, C, and 26VAC. Trying to operate in legacy… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,019 satisfied customers
Carrier vs Rheem brand? Which one better? For carrier we got
Carrier vs Rheem brand? Which one better? For carrier we got 10 year warranty, 3 years labor and 5 year maintenance plan For rheem we got 10 year warranty, 2 year labor and 2 year maintennacr plan Any… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
What Carrier thermostat will replace a Carrier Thermidistat
What Carrier thermostat will replace a Carrier Thermidistat installed in 2000? I want an exact functional replacement. … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
What is size of clear tubing for condensation for Friedrich
What is size of clear tubing for condensation for Friedrich room air conditioner PH14B … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
How does the cover get removed on a Carrier Carrier
How does the cover get removed on a Carrier Carrier TSTATBBP2S01B thermostat so I can replace it with an Ecobee? … read more
hvacdave84
hvacdave84
53 satisfied customers
HVAC question I have a Carrier condenser unit that was
HVAC question I have a Carrier condenser unit that was running this morning when the heat was on in the house. The thermostat was set for heat? Model number 38TGO30300. I through the outside breaker b… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a carrier heat pump and my condenser unit continually
I have a carrier heat pump and my condenser unit continually runs even when the thermostat is turned off. can you help … read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
My high efficiency condensing furnace (Carrier) emits a
My high efficiency condensing furnace (Carrier) emits a terrible eye-stinging odor when heating. The furnace runs quiet and otherwise appears to be trouble free, however I see (and smell) a fresh (wet… read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have a Carrier 58SX gas fired condensing furnace that will
I have a Carrier 58SX gas fired condensing furnace that will not start. The pilot flame comes up upon the thermostat calling for heat but the flame is a bit lazy and it goes out after about 5-7 second… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a carrier condenser outside and the relay keeps on
I have a carrier condenser outside and the relay keeps on popping I want to know if I can bypass until I can get a new one … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 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