HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I have a rheem air handler RHSL_HM3617CU that is blowing the
i have a rheem air handler RHSL_HM3617CU that is blowing the 5amp fuse on the handler board. This is after a tech came out and replaced the 3amp with a 5 … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,037 satisfied customers
3 amp fuse blowing on air handler board....narrowed it down
3 amp fuse blowing on air handler board....narrowed it down to red wire out to heat pump.... red wire traces directly over to defrost board...I see a little discoloration on two resistors on the board… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,020 satisfied customers
Problem with Lennox model HP-26-036-7P heat pump. 24 volt
Problem with Lennox model HP-26-036-7P heat pump. 24 volt control transformer breaker trips when unit calls for heat or cooling. … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,037 satisfied customers
I have a Lennox hp26-030-7p unit will not run when
I have a Lennox hp26-030-7p unit will not run when thermostat energized. Replaced dual run capacitor with correct update Lennox replacement. Not getting 24v to low voltage side of contactor, not getti… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,037 satisfied customers
I am trying to fix my Trane CZH03611CA...Affinity Series.
I am trying to fix my Trane CZH03611CA...Affinity Series. The compressor and fan will not come on. Checked AC Conductor.. have 240V coming in and no voltage coming out to compressor and fan. Checked f… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,037 satisfied customers
I have a carrier FE4 system that has a 3 amp fuse on the
I have a carrier FE4 system that has a blown 3 amp fuse on the control board, the infinity control thermostat won't come on… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,037 satisfied customers
I switched from a Venstar thermostat to a Hunter 44665.
Hi, I switched from a Venstar thermostat to a Hunter 44665. Here's how the wires were connected to the Venstar:Brown - "C" Blue - "G" Yellow - "Y1" Grey - "W1/O/B" Red - "R"I tried connecting it this … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,940 satisfied customers
I have a Lennox heat pump w/ electrical aux/emergency heat,
Hi there, I have a Lennox heat pump w/ electrical aux/emergency heat, approx. 6-7 years old (can get exact model # ***** I get home). I installed a Nest thermostat the same as the old one (R, C, G, Y,… read more
Appliance Guru
Appliance Guru
18,838 satisfied customers
My Lennox CBX27UH unit was off when we got home today. Was
My Lennox CBX27UH unit was off when we got home today. Was working fine earlier in the day. It is about a yr old. Use a Honeywell wi-fi register on the wall to control temp. Breakers are all fine to i… read more
jHVAC
jHVAC
102 satisfied customers
Matthew... trying to replace an old Lennox mercury thermostat y1
Hi Matthew... trying to replace an old Lennox mercury thermostat y1 = yellow g = green o = orange r = red c = blue w1 = white jumper from w1 to e trying to install an rthl3550d white = aux g = green o… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
I have a Lennox 21j7101 tstat. I am replacing with a Pro1
I have a Lennox 21j7101 tstat. I am replacing with a Pro1 IAQ T715. Need wiring directions… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,940 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
1,024 satisfied customers
I am trying to figure out issue with Carrier unit. The 5 amp
I am trying to figure out issue with Carrier unit. The 5 amp fuse is blown in HK61EA006 airhandler unit. I removed wiring to outside unit and it stopped blowing the fuse. I current have heat in emerge… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,791 satisfied customers
I have a carrier 3.5 ton unit. M-38YXA042. this morning we
I have a carrier 3.5 ton unit. M-38YXA042. this morning we had no heat. Thermostat was blank. Found the 5A fuse on the cntrl bd blown. replaced fuse. Thermostat come up. Emerg heat works. Normal mode … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,037 satisfied customers
Lennox ac system fuse blows when system starts. Why?
I have Lennox ac system and the fuse #3 amp in blue wire keeps blowing. If jumped system would start and function fine. Now even a 5 amp fuse blows when system starts. Model #CB29M-41-2P AIR HANDLER.… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,369 satisfied customers
I have a trane air handler and woke up this morning to find
I have a trane air handler and woke up this morning to find the house was cold. So I looked at the thermostat and it was blank. Then I checked all the brakers they were good. So I removed the blower m… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
Im working on a 3 zone heat pump lennox split system. I am
I'm working on a 3 zone heat pump lennox split system. I am getting 24v constant power to the "Y1" terminal on the equipment side of the zone board. Even when all 3 zone's stop calling for heat. the "… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
everytime i turn on 4tee air handler it blows 5a fuse. im using
everytime i turn on 4tee air handler it blows 5a fuse. im using a honeywell hz432 zone damer control. the termials in the air handler are bk, r, o, g, y1, y2, d, b, w1,w2,w3. when i disconnected the c… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,940 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