HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

I have a Carrier Air Handler - Model FV4A (Assembly Booklet

Customer Question
325987-701) Paired with a 38YXA...
I have a Carrier Air Handler - Model FV4A (Assembly Booklet 325987-701) Paired with a 38YXA Deluxe 13 SEER Split System Heat Pump with Puron. We are experiencing High kWh usage this year! Our house is a one level-house w 1500 square feet. We are experiencing a large jump in kWh usage this year as opposed to last year. We've fixed several major air leaks to no avail! One situation was a fireplace double flue duct that had the outside pipe pulled apart when we had our flat roof fixed with a sloped roof for drainage. The roofers pulled the outside pipe apart - we had about a 5" separation in the stack. Now fixed.
Question - the air handler - to my recollection - used to run at a higher speed when it got cranked up. Could the fan run at a slower speed if someone sabotaged our air handler after we kicked them out because they claimed they couldn't do our floor-level return ducts. Stuff changed about then. Don't know what they could have done - Could they just moved a wire over to another terminal or do something else that would make the AC run slower. I got to thinking that they might have even pulled one of the 3-phase wires - That's where they hooked into the system! Left - just taped the wires up. ???????
Could the fan even run on 2 phases. I know it's a DC motor - but the question is - could somebody have disconnected part of the 220 3-phase power just for spite? We're just not getting the thru-put that we used to get. Could be it's hotter this year. Dunno. Sorry for such a long question - but we're stumped. Walt
Submitted: 2 years ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 40 minutes by:
9/4/2015
HVAC Technician: Phil, Mechanical Engineer replied 2 years ago
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 8,824
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial
Verified

Hello,

Tell me if the copper refrigerant lines were ever cut, and if because of that or for some other reason, the system was recharged with refrigerant.

If it was, it is likely that few too many ounces of refrigerant were put in the system, that allow the system to provide heating and cooling, but can increase your electric bill 30 to 50%.

That will be our best starting point... Let me know about that, we can go from there.

Ask Your Own HVAC Question
Customer reply replied 2 years ago
OK - how can I tell if the refrigerant line has been cut? Is there any evidence that I should be looking for to answer this - either positive or negative? Not sure where to look and what I should see as evidence to alert me to the possibility of that situation. I've had the condenser swaped out several years ago - I imagine the refigerant line is connected to that - I remember the tech soldering something after that fix. However, he was working out of the company that installed the unit.But since then, we've had a contract with a suspect AC company that had a very poor reputation - doing our service (found out later they had a very bad rep.). I can't imagine a tech doing that - we've never had the whole system recharged to my knowledge - on rare occasions - I had to pay for additional refrigerant. (I'm not sure it was Puron though). Let me know what I should look for and where. Thanks. Walt
HVAC Technician: Phil, Mechanical Engineer replied 2 years ago

Hello again, you will not be able to tell by looking, you would know by your personal observations only...

So far it sounds like someone may have mixed the wrong type of refrigerant in, or added too much refrigerant. To diagnose that you need a set of refrigeration service gauges, that is something beyond most home owner capabilities.

If you can tell me which direction you are from the center of the nearest city, I can look for any well rated outfits in your area and give you a short list of them.

We can go from there without a time limit.

Ask Your Own HVAC Question
Customer reply replied 2 years ago
I am not satified where this dialog is going for the resolution of the problem with my air conditioner. I see no resolution possible with this interface. I'm sorry. Please - accept my initial payment of $5. I am unsubscribing to this conversation at this point. Walt
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 8,824
8,824 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

8,824 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
My Carrier Furnace goes on but will not stay on,the red
My Carrier Furnace goes on but will not stay on,the red blinking code is 3blinks and pause,3 … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a replacement condenser from Goodman, the original
i have a replacement condenser from Goodman, the original was a variable speed and they have since discontinued it and as a warranty replacement they sent me a different condenser and the wiring is to… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
Condenser not running checked all breakers and thermostat
condenser not running checked all breakers and thermostat settings … read more
Webb-Guy
Webb-Guy
tech.
73 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
8,824 satisfied customers
Question for you regarding wiring a carrier infinity with a
Question for you regarding wiring a carrier infinity with a Honeywell lyric. I have a gas furnace and an AC condenser. Today the terminal with the abcd wires connected in the furnace has 2 sets of wir… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Trying to identify thermostat wires from an old Carrier
Trying to identify thermostat wires from an old Carrier Comfort Zone to review options for upgrading the thermostat. … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
We have a Carrier A/C with Carrier TP-PRH01 thermostat. Set
We have a Carrier A/C with Carrier TP-PRH01 thermostat. Set on hold, auto, cooling.75 dgr. A/C will run for a while and go dark.Cooling stops. eventually it will light up and cooling will begin and wi… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
Condensate pump for a-c in split system ran continuously and
Condensate pump for a-c in split system ran continuously and now Lennox furnace Model GS18Q314E-100-5 will not come on. … read more
Phil
Phil
Mechanical Engineer
8,824 satisfied customers
Just bought a Nest, but it's incompatible with my Carrier
Hi Hi. Just bought a Nest, but it's incompatible with my Carrier Infinity system. what to do? Rewire? Or find a different thermostat? If so, which one? … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
Moved into our new home and they added an AC condenser. In
Moved into our new home and they added an AC condenser. In the mechanical room there is a bundle of three wires that are not hooked up to the main board of the furnace. The bundle goes to the AC conde… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I HAVE A CARRIER HVAC WITH A SYSTXCCUIDO1B THERMOSTAT THATH
I HAVE A CARRIER HVAC WITH A SYSTXCCUIDO1B THERMOSTAT THATH NEEDS TO BE REPLACED. DO YOU RECOMMEMD A ONLINE PART. … read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
Is there a battery on my carrier infinity thermostat? The
Is there a battery on my carrier infinity thermostat? … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 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
I'm gathering information on wall hung non-condensing
Hi. I'm gathering information on wall hung non-condensing boilers. I am the president of my Brooklyn co-op. We have 8 units in our building and each unit has it's own wall hung (Baxi) non condensing b… read more
Phil
Phil
Mechanical Engineer
8,824 satisfied customers
My Carrier is 4 years old. My problem is the condensate
Hi my name is Dave. My Carrier is 4 years old. My problem is the condensate drain is stopped up. … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Carrier condenser Model#: 38HDC060321. Relay opens after
Carrier condenser Model#: 38HDC060321. Relay opens after about 1 minute of running. I've replaced the capacitor (usually burns out about every two years) and the main fuses (1 blew, replaced both). Go… read more
Phil
Phil
Mechanical Engineer
8,824 satisfied customers
I have a carrier furnace (1990') with a Heil Condenser. The
I have a carrier furnace (1990') with a Heil Condenser. The furnace blower doesn't shut off and the thermostat appears to be inoperative meaning the controls don't seem to have any effect on the syste… read more
Phil
Phil
Mechanical Engineer
8,824 satisfied customers
I have a Carrier Condenser Model 38CK036320 I need to know
I have a Carrier Condenser Model 38CK036320 I need to know how to connect the new type S1-DP130024 Contasctopr… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 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