HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
Carrier programaable thermostat e2 code. 16 years. Just
just started voltage on the red and white wire is 13.6 … read more
Tamar D
Tamar D
Mechanic II
Vocational, Technical or Trade School
4,390 satisfied customers
I've installed a replacement HZ311 zone board to my HVAC
I've installed a replacement HZ311 zone board to my HVAC unit following the failure of the unit. Now I cannot get cooling or heating … read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,162 satisfied customers
My ac stopped working. Found no 24v and found a transformer
My ac stopped working. Found no 24v and found a blown transformer on the primary side, so replaced the transformer. Then I had power to the thermostat, good 24v, fan ran but no ac or heat. So I replac… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,162 satisfied customers
Background: tried to install ecobee3 thermostat --
Background: tried to install ecobee3 thermostat -- installation required PEK extender installation at Furnace Control board. Put inline for 4 wire leave from board. Something wrong and think either bl… read more
Wes
Wes
HVAC Technician
Associate Degree
172 satisfied customers
I have a new Rheem package unit. It seems to be losing the
I have a new Rheem package unit. It seems to be losing the 24v. My contactor is going In and out. I've checked the voltage and its dropping from 24v to 10 or 12 ,8 it jumps all around.… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,162 satisfied customers
GPH1448H41 goodman 4 ton heatpump package compressor/fan not
GPH1448H41 goodman 4 ton heatpump package compressor/fan not engaging, 240v at contactor input reading 120v on each leg of contactor output but 0v nothing, natta zip whenvoltage is read across the two… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,029 satisfied customers
Good day--I have a Lennox CB29M-41-2P Air handler with Aux
Good day--I have a Lennox CB29M-41-2P Air handler with Aux heat (Heat Pump system) and the condenser unit outside is a Lennox HP26-030-15P. It's controlled by a Honeywell T8411R thermostat. Last week,… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,029 satisfied customers
Bryant heat pump no apparent power to thermostat. Which wires
Bryant heat pump no apparent power to thermostat. Which wires should have voltage on t-stat wires ? Which is common ?… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,162 satisfied customers
Hi, I have an older (maybe 20 year old now) Rheem Criterion
Hi, I have an older (maybe 20 year old now) Rheem Criterion heat-cool unit, circuit drawing number 90-22886-01 rev 18, and has been working fine until the other day. When I got into the IIBC box and f… read more
R.G.
R.G.
318 satisfied customers
Installed new system today. Turned on power to unit LED light
Installed new system today. Turned on power to unit LED light came on then went off and will not come back on. I turned off power waited ten minutes turned power back on no red light. What happened th… read more
V12Tech
V12Tech
252 satisfied customers
I need a Modine Transformer for my PA150AB Heater Transformer
I need a Modine Transformer for my PA150AB Heater Transformer #5H70875B1 This tramsformer is obsolete can some one tell me where I can find an original replacement or an aftermarket transformer that w… read more
hvacexpertjoe
hvacexpertjoe
Electronics Technician
Vocational, Technical or Trade Scho
186 satisfied customers
My Lennox HS8 home air conditioner is dead. I have checked
My Lennox HS8 home air conditioner is dead. I have checked all breaker with no results. I have opened the outside box and see no loose wires or other breakers/fuses. What do I need to do next… read more
Rick Mather
Rick Mather
HVAC Tech
Vocational, Technical or Trade Scho
3,631 satisfied customers
what should the line voltage be on a 208v to 24v transformer.
what should the line voltage be on a 208v to 24v transformer. from line terminal to line terminal and line terminal to ground… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,488 satisfied customers
I have a Bryant heat pump/ fan coil model FB4. The 5 amp fuse
I have a Bryant heat pump/ fan coil model FB4. The 5 amp fuse on control board inside fan coil unit has blown a couple times in 2 months. Yesterday noticed t-stat blank again thinking it was another f… read more
Matthew
Matthew
Service tech
Bachelor's Degree
2,014 satisfied customers
I have a bryant air handler model fb4anf036. It has blown
I have a bryant air handler model fb4anf036. It has blown 5amp fuses a couple of times in last 3 months. Now thermostat is blank again however this time the fuse did not blow. I checked the voltage on… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,162 satisfied customers
Goodman GMH95 with Heat pump compressor outside. Single stage
Goodman GMH95 with Heat pump compressor outside. Single stage board works fine, second board that integrates the heat pump with the furnace, has intermittent readings on the low voltage terminals. Res… read more
Joseph
Joseph
HVAC Contractor
Vocational, Technical or Trade Scho
97 satisfied customers
i need to install a transformer to a furnace for operation
i need to install a transformer to a furnace for operation of the furnace and the air conditioner. I believe there are 6 wires that need to be connected on the transformer. Where exactly do i need to … read more
Drcool
Drcool
HVAC Technician
Bachelor's Degree
264 satisfied customers
Testing a step down transformer on a residential air handler
What is the proper way to test a step down transformer on a residential air handler? And what is the proper way to check a contactor coil on a residential condensing unit? (what reading should the met… read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 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:

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.

Jerry

Jerry

Service Technician

576 satisfied customers

HVAC Technician. Hearth Products Specialty

A-1 Tech

A-1 Tech

Service Manager

526 satisfied customers

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

Thehvacguy

Thehvacguy

LIC HVAC,Plumber

426 satisfied customers

Certified HVAC Universal Technician,Lic plumbing contractor, 28 yrs exp

Drcool

Drcool

HVAC Technician

264 satisfied customers

i have been an A/C tech for the past 30 Years. working on window types, split type, and package

N4IEA

N4IEA

NATE Certified; HVAC Technician

227 satisfied customers

Retired, HVAC / Electrical Technician / Contractor 35-years Experience.

< 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