HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
A Rheem performance tankless water heater was installed and
a Rheem performance tankless water heater was installed and the water does not get very hot, breaker is working was checked water come out just over warm not hot turned up temp. still not hot … read more
Mike R.
Mike R.
3,018 satisfied customers
I'm getting an error code c8 13 on my Raheem tankless. The
I'm getting an error code c8 13 on my Raheem tankless. The air filter is clean, there are no obstructions in the vent, and I even went as far as to remove the burner and clean that as well. It runs fo… read more
Rick
Rick
Supervisor
24,965 satisfied customers
Our Paloma natural gas tankless water heater is flashing a
Our Paloma natural gas tankless water heater is flashing a C7 and 75 error codes intermittently. Sometimes they can be reset and the system works OK. Seems to happen more in the morning than evening f… read more
Webb-Guy
Webb-Guy
Maitenance Supervisor
Associate Degree
3,720 satisfied customers
I have been recommended to replace my power vent W/H with a
I have been recommended to replace my power vent W/H with a Rheem 43VP50E2 or Rheem PDV-50. This is a residential application, 5BR/5BA home with 6 people residing in the home. We have two sets of wash… read more
R.G.
R.G.
318 satisfied customers
We have no hot water. My wife noticed a C7 code. I shut down
We have no hot water. My wife noticed a C7 code. I shut down the unit by unpluging the cord. I waited 5 minutes and I now have a 76 code. The code is on for a few seconds then temp indicates 120 and u… read more
hvacexpertjoe
hvacexpertjoe
Electronics Technician
Vocational, Technical or Trade Scho
183 satisfied customers
I have a Rheem Tankless Hot Water system with a Pronto Main
I have a Rheem Tankless Hot Water system with a Pronto Main Remote Control UMC117...It keeps kicking off and shows an error code of C7...what's wrong and how do I fix it. The only change in the system… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
I have a Rheem Pronto tankless hot water heater Model No. RTG-74PVP-1.
I have a Rheem Pronto tankless hot water heater Model No. RTG-74PVP-1. It will come on and work for 30 seconds or so and then flash C7 76 or C8 76 0n the remote. what does this mean and what do i do t… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,884 satisfied customers
I have an ecosence PTG-74PVP-2 tankless water heater.I get
I have an ecosence PTG-74PVP-2 tankless water heater. I get errer code c7 - 13 on the remote. The internal red LED on the circuit board blinks 6 times I think it is a sensor but not sure. Any help wou… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
9,997 satisfied customers
Gentlemen, I have a Paloma Tankless Water Heater that wont
Gentlemen, I have a Paloma Tankless Water Heater that won't remain on to heat water. There is an error code "C8" that is alternately flashed with the current water temperature. Is there anything that … read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
2,038 satisfied customers
I have a Richmond tankless water heater Model # RMTG-74PVN-1.
I have a Richmond tankless water heater Model # XXXXX It was installed the summer of 2007. has operated proplem free until last week when it stopped working and flashing C7 on the remote. Can you advi… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
On an outdoor tankless natural gas water heater - model RTG-53XN,
On an outdoor tankless natural gas water heater - model RTG-53XN, what does the error code C7 with the number 76 mean? After trying to restart the heater following the service manual, within a few sec… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
What should I do when I get an error message C7 on my Paloma
What should I do when I get an error message C7 on my Paloma Tankless water heater (5.3 series)?… read more
Expert
Expert
Hello I have a Paloma tankless heater model RTG-53PVN in
Hello I have a Paloma tankless heater model RTG-53PVN in service since a 8 month . It quit producing hot water . I do not have a remote control with it . the unit comes on for a couple seconds when I … read more
Rick Ridley
Rick Ridley
UK Heating Engineer
30 years on the tools
871 satisfied customers
I have a Paloma tankless hot water heater -- Model PTG 74XP Yesterday,
I have a Paloma tankless hot water heater -- Model PTG 74XP Yesterday, the controller started flashing an error code -- C7 Turning off the power, waiting a few minutes, then turning the power back on … read more
Jason  Hvac
Jason Hvac
Hvac Tec
Vocational, Technical or Trade Scho
120 satisfied customers
I do not have a book to tell me codes and my tank keeps shuting
I do not have a book to tell me codes and my tank keeps shuting off and the reading is C7 46 and C4 76. What does this mean? Thanks… read more
Heath Moyer
Heath Moyer
1,033 satisfied customers
we have a rtg53xn rheem 5.3 gal outdoor tankless water heater.
we have a rtg53xn rheem 5.3 gal outdoor tankless water heater. The temperature drops from 102 degrees down to 76 degrees and displays a C7 code. How do we fix it?… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
9,997 satisfied customers
Rheem Pronto tankless water heater RTG 53 XN shows code C7,
Rheem Pronto tankless water heater RTG 53 XN shows code C7, C8 and 76 temperature. Restart and runs hot for a couple of minutes and then goes off and shows code. What is the problem?… read more
Jason  Hvac
Jason Hvac
Hvac Tec
Vocational, Technical or Trade Scho
120 satisfied customers
I have a Rheem remote thermostat USC1-117 on my Rheem tankless
I have a Rheem remote thermostat USC1-117 on my Rheem tankless water heater. We are having freezing temperatures in the Houston area and every time I turn on my hot water the thermostat and the heater… read more
Jason  Hvac
Jason Hvac
Hvac Tec
Vocational, Technical or Trade Scho
120 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

9,997 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