HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
5 ton split, R410a, new evap, new outdoor unit, new line
Bryant 5 ton split, R410a, new evap, new outdoor unit, new line set. system evacuated and charged to factory specs. suction pressure at 95 psi, discharge pressure at 300 psi. sub cooling measures 21 d… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
Replaced stuck 410a compressor, weighed in exact charge and
Replaced stuck 410a compressor, weighed in exact charge and did not have any suction pressure, changed txv but I only get 90 psi suction with with a 50 degree suction line and a 27 degree evap I have … read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
Working on a horizontal cooler. 134a. 2years old Cannot
Working on a horizontal cooler. 134a. 2years old Cannot get temp below 42' Evap clean Condenser clean Condenser fans work (direction of flow ok) Air temp coming out of condenser 24-28' Installed new c… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
York 7-ton heat pump. Was freezing up whole indoor coil (runs
York 7-ton heat pump. Was freezing up whole indoor coil (runs in cooling only). Changed filters, pressure drop across coil was only 0.2". Had low suction (r-22) around 15F. Added gas did not bring suc… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
i have a 20 hg reading on the suction line and 110psi on the
i have a 20 hg reading on the suction line and 110psi on the discharge line. I suspect a blockage before the evap Is there any way to clear this without hacking up the lines? This is for a Fridgeaire … read more
Appliance Guru
Appliance Guru
18,977 satisfied customers
I installed a rheem 2 ton ac in the 2nd floor of my house.
I installed a rheem 2 ton ac in the 2nd floor of my house. My neighbor did the brazing and added refrigerant for me. He has done commercial refrigeration for 15yrs. My problem is that the evaporator i… read more
Richard
Richard
Technical Manager
Vocational, Technical or Trade Scho
1,514 satisfied customers
I am working on a roof top unit which has low suction pressures
I am working on a roof top unit which has low suction pressures on both compressors. changed blower speed from 3600cfm to 4000 cfm . #2 comp goes out on low evap temp. pressures are 50/180for #1comp 4… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
I have a Nordyne / Grandaire Condensor Model # XXXXX
I have a Nordyne / Grandaire Condensor Model # XXXXX The problem I'm having is when servicing the unit with freon, the HIGH side will go as high as 400 psi, while the LOW side will get to 70-80 psi, (… read more
Richard
Richard
Technical Manager
Vocational, Technical or Trade Scho
1,514 satisfied customers
Was working on a 3 1/2 ton heat pump, when I got there the
Was working on a 3 1/2 ton heat pump, when I got there the coil was froze up. No sign of airflow restriction, coils were clean and also cleaned them even more. SO I assumed low on charge, added a litt… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
Trane Rooftop Heat Pump Package Unit, 8 years old, 7.5 tons.
Trane Rooftop Heat Pump Package Unit, 8 years old, 7.5 tons. Replaced compressor which was a burnout. Ran R-11 thru refrigeration system, placed acid scavenger in system. Ran nitrogen thru refrigerati… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
I just installed a Goodman GSX130421 3.5 Ton R410 Condensing
I just installed a Goodman GSX130421 3.5 Ton R410 Condensing Unit along with a Goodman CAPF3642C6 3.5 Ton Evap. The evap came with a #78 Oriface , the Cond. unit came with a #76 oriface along with ins… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
Beverage Air model DP93 Charge was weighed in at 9.5 oz per
Beverage Air model DP93: Charge was weighed in at 9.5 oz per nameplate after leak repair, dryer replacement, pressure test and micron evac. System appeared quite undercharged and became effective afte… read more
Tom
Tom
HVAC Technician
Vocational, Technical or Trade Scho
770 satisfied customers
I just installed a rheem rapm-36jez with a rhpn-hm3624jc, the
I just installed a rheem rapm-36jez with a rhpn-hm3624jc, the indoor unit sat 3 feet lower then the outdoor unit. it has a 33 foot line set 3/4, 5/16 . I added 4.5 oz of 410 to adjust for the lenth of… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
have one year old goodman 4ton scroll compressor, not cooling,
have one year old goodman 3ton scroll compressor, not cooling, low side psi 150, high psi about 100psi, when installed believe was a burnout and no additional filters were added or lines flushed, but … read more
Richard
Richard
Technical Manager
Vocational, Technical or Trade Scho
1,514 satisfied customers
I work in a 149 apt. facility that have the condensers on the
I work in a 149 apt. facility that have the condensers on the roof and the evaporators in the apts. Its a 4 story building and all the units are a 1.5 ton. My boss has shown me how to charge the syste… read more
ComfortZone
ComfortZone
Associate Degree
515 satisfied customers
greetings, Im having problems diagnosing a payne package
greetings, I'm having problems diagnosing a payne package unit. M#PA3ZNA036000AA Brand new scroll comp. Suction pressure way too high at 95 psig. Discharge pressure ok at 210 psig. 87 deg ambient. 25 … read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 satisfied customers
i installed a 2.5 ton heat pump then relize i got a 3 ton
i installed a 2.5 ton heat pump then relize i got a 3 ton air handler and when charging i relized that the heat pump builds a head presure of 400 psi should i chage the orfice or what causes this prob… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
I have a 4 ton Carrier Heat pump I have been working on. The
I have a 4 ton Carrier Heat pump I have been working on. The intial problem was a leak in the coil. I repaired the leak also replaced the Defrost timer board and the sensor. Evacuated system, weighed … read more
hvacmrfixit
hvacmrfixit
disabled
Vocational, Technical or Trade Scho
118 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