How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Phil Your Own Question

Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5485
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

I need some help with my Quietside QVM9 boiler, had 4 plumbers

Resolved Question:

I need some help with my Quietside QVM9 boiler, had 4 plumbers look at it and knowone can give me an answer on how to fix it, had the problem from the beginning, there wasw a jumper put off thr heating flow switch input signal (it was replaced with a new one) which will make it work, but in the winter time if you are gone and do not run the hot water at lease once or twice a day it does not heat the house, if you have the summer economy switch in the on position on the thermostat it takes a long time before hot water is available for showers
Submitted: 3 years ago.
Category: HVAC
Expert:  Phil replied 3 years ago.

Phil :

Hi,This is risky business in the blind, not responsible for damages on your end. Click 'accept' when satisfied.. or we can get another expet

Phil :

Back in a few minutes, there is a chance we can make a few adjusments that might work while you are on vacation at least,

Customer :

What do you mean by risky business, can the circuit board be checked some way to check to see if a port has a problem? Don't want to have to replace the unit!

Phil :

Hello again, the risk varies.. sometimes its minimal, sometimes what looks minimal risk can turn out badly, for instance a person leaves their electrical panels off while working on the equipment and a baby crawls in and contacts high voltage... the unforseen etc,

Phil :

You on target seeking to get the card checked.. industry stats on this show half of them that are replaced were good cards,, and thats by service people.

Phil :

Unfortunately these cards are used in so many different ways that test equipment cannot be built economically to test all cards and it appears that at price these cards sell for retail and what we know is very very low cost from China,,, that there can be more profit in selling parts, especially these cards, then the original boiler sale.

Customer :

What are the adjustments are you talking about? Where can you get the cards and do they just plug in?

Phil :

Quietside (made in Korea by Samsung) has had an extensive history of problems.. a lot of them have been replaced for ongoing problems.. if its over 5 years old, I would not spend any money fixing it... It its newer than 5 years find your warranty papers and contact the regional distributor about parts. and a resolution to the low flow problem when you are not using hot water. thats been a bug with them for years.

Phil :

Look into age issue for me, tell me what city you are nearest I will locate a dealer or distributor for you.

Phil :

The adjustment would involve putting a tiny circulating pump 1/20th HP) in the domestic hot water loop positioned so the flow switch is inbetween, the suction side of the pump connected to a hot water line at the farthest bathroom, and the pump discarge line into a T at the cold water inlet to boiler. with a watts flow balance valve 1/2" fittings with the smallest port size they have. set at 20% flow,

Phil :

If its not a newer model though I wouldnt bother, those things have bugs running out their ears.

Phil :

Let me know, we can go from there, Phil

Customer :

It was installed in 2003, have the problems been corrected with the newer models or do they still have other problems? Would buying a new one work, don't know if there is another boiler that would work with the parts that have been installed?

Phil :

Thats an older buggy model, the over all build quality is also an issue. My recommendation dont spend any money on it, replace it entirely. Buderus makes a good one (they have been in the heating business since 1730 .. but are mostly established in the EU)

Phil :

For the US I dont like any of the 'combi' units... they have very poor water temperature controls by US standards.

Phil :

A separate hot water heater works best for domestic hot water, and those are cheap. under $500 installed for an 80% efficient unit... or a heat pump water heater for high efficiency in a water heater. AO Smith, Rheem and Triangle are all good.. Some people even us those for heating if its a modest climate, it if its colder climate, heat pumps work well and are much cheaper to run than natural gas...choice of space heating strategy varies with each situation.

Phil :

McLain is the best in small boilers.

Phil :

Let me know if you need further elaboration, Phil

Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5485
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial
Phil and 3 other HVAC Specialists are ready to help you

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. Jimmy Bagley, IA
< Last | Next >
  • 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. Jimmy Bagley, 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!!!! Alex Los 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. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, 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. Esther Woodstock, 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. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • gotoman for ac

    HVAC Technician

    Satisfied Customers:

    4657
    51 years of experience install design and repair of all makes and models of AC
< Last | Next >
  • http://ww2.justanswer.com/uploads/SE/ServiceTechRus/2012-6-7_2119_056.64x64.JPG gotoman for ac's Avatar

    gotoman for ac

    HVAC Technician

    Satisfied Customers:

    4657
    51 years of experience install design and repair of all makes and models of AC
  • http://ww2.justanswer.com/uploads/AL/alumalite/2012-5-10_234018_shutterstock506249951forJA500.64x64.jpg Phil's Avatar

    Phil

    Mechanical Engineer

    Satisfied Customers:

    3888
    Retired HVAC/ Electrical & Boiler contractor. Industrial
  • http://ww2.justanswer.com/uploads/skibum0101/2008-12-16_015819_just_answer.jpg Rick Mather's Avatar

    Rick Mather

    HVAC Technician

    Satisfied Customers:

    3132
    35 years experience, HVAC
  • http://ww2.justanswer.com/uploads/RY/Rygis20/2011-5-7_3143_DSC5324.64x64.JPG Matthew's Avatar

    Matthew

    HVAC Technician

    Satisfied Customers:

    1994
    14 years experience in the HVAC field of service, installation, Manual J & D calculations
  • http://ww2.justanswer.com/uploads/KE/kentguidry/2011-9-26_214316_0059.64x64.jpg Kenton Guidry's Avatar

    Kenton Guidry

    HVAC Technician

    Satisfied Customers:

    962
    12 years install/service experience.
  • http://ww2.justanswer.com/uploads/solarman1947/2009-12-13_223915_phpkKBcXq_c2PM.jpg Rick Ridley's Avatar

    Rick Ridley

    UK Heating Engineer

    Satisfied Customers:

    871
    Retired But have had 30 years on the tools, Ex CORGI
  • http://ww2.justanswer.com/uploads/Ironheadfan/2009-12-18_222416_pump_005.jpg Tom's Avatar

    Tom

    HVAC Technician

    Satisfied Customers:

    770
    16+yrs HVAC/R service. Residential Commerical Industrial