HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

No power at Rh detected. I don't know what to do.I see that…

Customer Question
No power at Rh...

No power at Rh detected. I don't know what to do.I see that happened before.

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

I saw this few minutes ago but it smth wrong from yesterday.It was cold and the temperatures showing 24?

Contractor's Assistant: Do you plan on doing the work yourself?

I don't have a choice,my husband is going to be here in 1.5 hrs. We moved to this house recently.

Contractor's Assistant: Anything else we should know to help you best?

I can try to do it myself if it's possibly to fix it easily.

Submitted: 6 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 1 hour by:
3/23/2018
HVAC Technician: Phil, Mechanical Engineer replied 6 months ago
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 9,880
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial
Verified

Hello, if your thermostat issued that notice, "no power at Rh detected" there is most likely a blown 3 amp fuse in the furnace/air handlers printed circuit board. If that is the case, there is a cause for such a blown fuse that will need to be located and corrected.

.

If you rate this answer positively I will be able to continue with coaching and repair guidance without any time limits,

.

Its time to rate my input for the day, that gets me paid, locate the "finish and rate your expert" link near the top of the page and click on it. I will appreciate that very much.

I am in every day from 9 am to 11 pm west coast USA time to do any follow up, including coaching and repair advice as needed.

Ask Your Own HVAC Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a hvac technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 9,880
9,880 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

9,880 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 >

Related HVAC Questions
We have foam insulation. Just replaced geothermal with heat
We have foam insulation. Just replaced geothermal with heat pump. Thermostat says 66 degrees and it is in the room right by the thermostat. However, nowhere does it feel that cool even in the room tha… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
I have a carrier a/c that is blowing air but not cold i neglected
i have a carrier a/c that is blowing air but not cold i neglected to change the filter and looking for a way to cold air blowing again… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My old tappan furnace is not working properly 1.5 minutes hot
My old tappan furnace is not working properly 1.5 minutes hot air 5 minutes cold air blowing non stop but the room tem. is not good.… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Hi please help. We have recently moved into a new house with
Hi please help. We have recently moved into a new house with a Vaiilant ecotec plus 837 but weren't given any instruction or guide. The pressure guage seemed to be getting lower (but still on the grey… read more
Plumbers_Mate
Plumbers_Mate
General Manager
Vocational, Technical or Trade Scho
3 satisfied customers
I live in the Central Florida area and I have a Carrier Heat
I live in the Central Florida area and I have a Carrier Heat Pump system. We recently entered into a time of year when the thermostat will not turn the system on as frequently as it normally does in t… read more
Richard
Richard
District Technical Manager
Vocational, Technical or Trade Scho
1,416 satisfied customers
I have a five year old Trane XR13 that is blowing warm air
I have a five year old Trane XR13 that is blowing warm air instead of cold air. It was working all day and we recently have it serviced. We turned it completely off tonight to put in a new air filter … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
My thermostate stopped working sometime today or tonight. Its
My thermostate stopped working sometime today or tonight. It's a Honeywell thermostat whose only id I can figure is "Cass 2 LR1620" 30 v max. and what looks like it might be a coded date or some other… read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
2,010 satisfied customers
We moved into a house near Victoria, BC with electric baseboard
We moved into a house near Victoria, BC with electric baseboard heat in mid-October 2010. In mid-December we had a Carrier Infinity system installed: a 25HPA524A310 Air Conditioner, a FE4ANF002 Fan Co… read more
Will
Will
President
Vocational, Technical or Trade Scho
131 satisfied customers
Hi, I have a simple comfort 2000 thermostat installed in
Hi, I have a simple comfort 2000 thermostat installed in the house and just recently things started going awry. Although the thermostat is set to auto, the fan continuously blows even without any heat… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have a Heil DX 1400 air conditioner and the unit turns on
I have a Heil DX 1400 air conditioner and the unit turns on almost every 10 minutes. It is a brand new unit installed this year and my first electric bill was through the roof because the air conditio… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
596 satisfied customers
My 1st floor A/C unit (I have a 4 ton for the 1st floor and
My 1st floor A/C unit (I have a 4 ton for the 1st floor and a 3.5 ton for the 2nd floor) stops blowing cool air in the evening. I turn it off for a while (say 30 minutes) and then it blows cool again.… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
9,880 satisfied customers
We installed a new RTH2300B thermostat in place of an old White
We installed a new RTH2300B thermostat in place of an old White Rodgers 1F56W-444. The old thermostat had an RC and RH wire and the new one doesn't. it states in the new manual that if you have an rc … read more
Tom
Tom
HVAC Technician
Vocational, Technical or Trade Scho
770 satisfied customers
I have a Vokera linea 24 combi boiler approx 7 years old.
"I have a Vokera linea 24 combi boiler approx 7 years old. Over the past few days i have had hot water problems. The hot water come hot, gets to its temp then the flames cuts out & the water goes cold… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
Well, its Christmas Eve and cold in the house and I went to
Well, it's Christmas Eve and cold in the house and I went to turn up the heat. We have a Robert Shaw thermostat, 300 series and the screen is blank. Just moved in a few months ago, so first winter her… read more
Tom
Tom
HVAC Technician
Vocational, Technical or Trade Scho
770 satisfied customers
I Have a 5 wirw thermostat and has been replace for a digital
I Have a 5 wirw thermostat and has been replace for a digital thermostat bur the cooling is not working. everyting is working the unit that I have is a one unit located in thr roof (york unit)the old … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I have a Carrier geothermal system that not heating the air.
I have a Carrier geothermal system that not heating the air. Our water is hot, but the air from the vents is cold.… read more
Patrick
Patrick
Bachelor's Degree
1,269 satisfied customers
we have a Carrier gas furnace weathermaker 9200.. we finally
we have a Carrier gas furnace weathermaker 9200.. we finally needed to turn the heat on last night....except no heat... a few weeks ago we turned off the airconditioner and winter covered the unit out… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
We recently moved our Carrier Thermostat from one wall to another,
We recently moved our Carrier Thermostat from one wall to another, it worked fine after the move until a couple of days ago. The temperature in the house is up to 78. When I hit AUTO (for the cool) th… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 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