HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I have a takagi tankless water heater model t-d2u-in-n which
I have a takagi tankless water heater model t-d2u-in-n which is not functioning and displaying error code 991. I know that it is not an HVAC question but each time I inquire the advertisement refers m… read more
Mike R.
Mike R.
3,008 satisfied customers
Need help with a Bosch Aquastar tankless water heater. about
need help with a Bosch Aquastar tankless water heater. … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
We have a Noritz RC-7649 tankless water heater, installed about
We have a Noritz RC-7649 tankless water heater, installed about three and a half years ago. It has worked well until the last couple of days, when it started cutting out and flashing error code 14. I'… read more
bonzaco
bonzaco
466 satisfied customers
Have a rudd ph50-40f model. woke up to take a shower luke
Hi! Have a rudd ph50-40f model. woke up to take a shower luke warm water was I got. Went to check water heater, see pilot light on, even turned the water temp up a little to see if that would make dif… read more
Rick
Rick
HVAC Supervisor
25,131 satisfied customers
My Bosch tankless water heater will not light. The igniter
My Bosch tankless water heater will not light. The igniter sparks and then I hear a gurgling/percolating sound. I assume the sound is due to it attempting to put gas into the ignition chamber, ut ther… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
I have Bosch Aquastar Model GWH 1000P (tankless water heater).
I have Bosch Aquastar Model GWH 1000P (tankless water heater). It is about 7 years old and has worked flawlessly until now. When I lit the pilot, the pilot comes on but goes away as soon as I let the … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
What tankless NG water heaters can be used in a condo with
What tankless NG water heaters can be used in a condo with existing galvanized chimney.. Need to run one or two appliances at once...and cannot change the existing venting system chimney on standing t… read more
Charles
Charles
Owner
FCC Communication License
1,456 satisfied customers
my bosch tankless water heater will not light. no green light
my bosch tankless water heater will not light. no green light on the box, and no ignition click… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
hello, I just got a bosch 520 LP tankless water heater and
hello, I just got a bosch 520 LP tankless water heater and I am wondering if it would be suitable to use for an in slab radiant heat set up. the radiant is already installed and is 800 square feet, cl… read more
jason3kgt
jason3kgt
Technician/salesman
3 years at University
26 satisfied customers
We have no hot water. My wife noticed a C7 code. I shut down
We have no hot water. My wife noticed a C7 code. I shut down the unit by unpluging the cord. I waited 5 minutes and I now have a 76 code. The code is on for a few seconds then temp indicates 120 and u… read more
hvacexpertjoe
hvacexpertjoe
Electronics Technician
Vocational, Technical or Trade Scho
183 satisfied customers
I have been using the Bosch 2400 NG now for about three years,
I have been using the Bosch 2400 NG now for about three years, once before about a year ago the unit displayed EC code and would not work, we had our local HVAC guy out who wasn't knowledgable about t… read more
HotWired
HotWired
Industrial Electrician
Associate Degree
154 satisfied customers
I have a GWH 715 ES, new heat exchanger, now fuse is blowing
I have a Bosch Tankless Hot Water Heater GWH 715 ES, new heat exchanger, now fuse is blowing when power is turned on.… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
Im building a home in Lewisburg, West Virginia and looking
I'm building a home in Lewisburg, West Virginia and looking at putting in one of four systems for hot water: 1) standard hot water heater (gas or electric), 2) EcoSense Heat Pump, 3) point-of-use hot … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
Hi guys, I have a Bosch GWH 715 ES -- Propane ProTankless
Hi guys, I have a Bosch GWH 715 ES -- Propane ProTankless hot water heater. For the first month it worked fine -- I left the default temp setting at 122 degrees. I have recently changed the heat setti… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,875 satisfied customers
I have in floor heating in my basement(roughly 800sq ft) and
I have in floor heating in my basement(roughly 800sq ft) and garage(450sq ft)house was built in 2000, system is a hot water tank,looking to upgrade system, should I be looking at a tankless hot water … read more
Rick
Rick
HVAC Supervisor
25,131 satisfied customers
I Have a Weil-Mclain wtgo series 3 oil fired natural draft
I Have a Weil-Mclain wtgo series 3 oil fired natural draft water boiler (w/tankless water heater), the hydronic heating system is doing fine. My question is, How do I connect the boiler's mixed hot wa… read more
Rick
Rick
HVAC Supervisor
25,131 satisfied customers
I have a Bosch tankless water heater (model AQ250 SX NG).
I have a Bosch tankless water heater (model AQ250 SX NG). Every time the hot water is turned on the heater groans. I have had the heater installed for approximately 4 years now. But the noise started … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,875 satisfied customers
Ive had your whole house tankless water heater for a couple
I've had your whole house tankless water heater for a couple of years and I have developed a problem/fault I can't remember seeing before. Fault code EO is displayed on the LCD display. How can I corr… read more
electrifier
electrifier
Owner - Contractor
Bachelor's Degree
1,610 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

7,634 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 >

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