HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
My fan is not running on the outside ac unit. I've changed
my fan is not running on the outside ac unit. I've changed the capacitor and the fan and it still is not running. What else could it be? … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 satisfied customers
My outside AC unit will not turn on. Neither the fan nor the
My outside AC unit will not turn on. Neither the fan nor the compressor turns on. It is a simple system. All there is is a compressor, a fan, a capacitor, and contactor. We replaced the capacitor, and… read more
Webb-Guy
Webb-Guy
Maitenance Supervisor
Associate Degree
3,733 satisfied customers
I have a Lennox HSXB15 unit that will not kick on, fan or
I have a Lennox HSXB15 unit that will not kick on, fan or compressor. I pulled the side panel off and can see that the red "Trip" light comes on after receiving the signal to turn on from the thermost… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I have a york model CZH03611B that the condesing unit shows
I have a york model CZH03611B that the condesing unit shows a flashing yellow trouble light. When I manually push in the contactor the compressor starts but the condensor fan does not turn on. How do … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 satisfied customers
I have a goodman package unit, 5 ton (gph1460h41ac). I have
I have a goodman package unit, 5 ton (gph1460h41ac). I have no 24v going to the contactor. If I manually engage the contactor the compressor and outside fan come on. The condenser fan runs once I call… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
I have a trane xe80 with a trane xe1000 ac compressor. On a
I have a trane xe80 with a trane xe1000 ac compressor. On a call to cool, the compressor doesn't start. inside blower runs fine. When you manually push in the contactor, the compressor kicks in fine a… read more
Expert
Expert
I removed the thermostat to paint, a TC-NHP01, and now the
I removed the thermostat to paint, a TC-NHP01, and now the circuit breaker trips when unit starts up. I have seven colored wires: orange, blue, black, brown, red, green, yellow and white. Currently, t… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I have a 5 Ton Rheem AC, installed just under 8 years ago.
I have a 5 Ton Rheem AC, installed just under 8 years ago. Recently, it appears the compressor doesn't always start when the system cycles. I notice there is no refrigerant flow and the air handler ju… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
Installed new Frigidaire HVAC in April, 2012. The outside
Installed new Frigidaire HVAC in April, 2012. The outside AC is a FSB4BD-KB series (42,000BTU) We have replaced the contactor three times (may run as long as 10 days) then the contactor cuts out and w… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,791 satisfied customers
Hi, I have a trane 2twb0030. The compressor has a flashing
Hi, I have a trane 2twb0030. The compressor has a flashing green light. It's has power but won't turn on. handler is working fine. Any suggestions ? Thanks.… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a split system air conditioning system. Its a Goodman,
I have a split system air conditioning system. It's a Goodman, model CK30-1T (installed in 1997). Hot air was blowing from the air handler, so I checked the condenser unit which is located on my roof.… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 satisfied customers
A/C system cooling fine until last night when condenser starting
A/C system cooling fine until last night when condenser starting sounding strange (excessive vibration then abnormal discharge sound) so I shut the AC off. Tried to start it later and there was hum co… read more
Appliance Guru
Appliance Guru
18,663 satisfied customers
Hello i am having a problem with a Mcquay spit unit. The
Hello i am having a problem with a Mcquay spit unit. The compressor is a CLJ18 and the interior unit is mwm020FkFAC. The a/c stop cooling, but the evaporator was working. I check the compressor that i… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
My 2 ton heil heat pump will run when I push in the relay but
My 2 ton heil heat pump will run when I push in the relay but only the compressor hums when turned on by thermostat...think it is thermostat or control board?… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,791 satisfied customers
HI, I have a tempstar model# NHP030AKA2. In 3/10, I replaced
HI, I have a tempstar model# XXXXX In 3/10, I replaced the capacitor and today I suspected that it was bad again. I replaced it with a new one again this morning but still have not seen the fan motor … read more
gotoman for ac
gotoman for ac
HVAC Technician
5,362 satisfied customers
My condensing unit will not run, found the condenser fan motor
My condensing unit will not run, found the condenser fan motor very hot, took it out hooked it up gave it a spin it started and kept running. Put it back in gave it the unit a start call the compresso… read more
Doug Scott
Doug Scott
Owner/Service Technician
Bachelor's Degree
42 satisfied customers
Have a roof-mounted unit of probably 2.5 tons installed in
Have a roof-mounted unit of probably 2.5 tons installed in 1994. About a year ago, unit started vibrating and it has progressed to where it is now felt in the walls of the kitchen,on the opposite side… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 satisfied customers
Ive got a Ruud Achiever 10 3 1/2 Tn unit. Compressor is not
I've got a Ruud Achiever 10 3 1/2 Tn unit. Compressor is not coming on in either heat or cool mode. I can manually push in the contactor and it will come on, but won't stay. When the thermostat is in … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 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

7,791 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