HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

I have a Vaillant 831 which recently stop igniting the

Customer Question
Hello, I have a Vaillant...
Hello, I have a Vaillant 831 which recently stop igniting the spark sequence is taking place but it's still not igniting. Help please.
Submitted: 2 years ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Customer reply replied 2 years ago
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from yo. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Answered in 7 hours by:
6/6/2015
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
Andrew Smith
Andrew Smith, HVAC Technician
Category: HVAC
Satisfied Customers: 3,644
Experience: City & Guilds Plumbing and Heating Engineer
Verified
Hi my name is ***** ***** I will try and sort your problem in the shortest possible time.
Can you tell me how long from when the fan starts to when it locks out?
Ask Your Own HVAC Question
Customer reply replied 2 years ago
The fan runs for 5 minutes while the ignition sparks
Customer reply replied 2 years ago
The fan starts imedectly I switched the boiler and go to a lock out after 5 to 6 minutes
Customer reply replied 2 years ago
What do I have to do to get this working
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
Does it ramp up and down a couple of times before lock out?
Can you hear it trying light - like ticking?
Ask Your Own HVAC Question
Customer reply replied 2 years ago
Yes
Customer reply replied 2 years ago
I can see the spark
Customer reply replied 2 years ago
And it will try to light but gose out instantly
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
Does it light at all?
It sounds like it does not know it is lit even if it lights.
You may just need your electrodes cleaning to produce a hotter spark and let the PCB know it is lit.
You will get these cleaned as part of a boiler service (at least you should do)
Ask Your Own HVAC Question
Customer reply replied 2 years ago
I will try this and get back to you by Monday thanks
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
No problem - come back if you get stuck
Ask Your Own HVAC Question
Customer reply replied 2 years ago
Ok I will let you know by tomorrow
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
Ok, thanks
Ask Your Own HVAC Question
Customer reply replied 2 years ago
I have cleaned the spark electrode and the heat exchanger still not working is it anything to do with the daveter valve
Customer reply replied 2 years ago
I have cleaned the spark electrode and the heat exchanger still not working is it anything to do with the daveter valve
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
No, if the divertor valve was faulty it would not even try to spark.
With the cover off can you see if it actually lights at all?
Ask Your Own HVAC Question
Customer reply replied 2 years ago
No
Customer reply replied 2 years ago
Could it be the gas valve
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
It could be if the pilot is not lighting at all.
Have you tried using a match when the boiler is trying to light?
Ask Your Own HVAC Question
Customer reply replied 2 years ago
No how am going to do that when the heat exchanger is sealed and close
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
Ok, can you take the spark electrodes out and see if they spark when you try and restart.
Can you check the gas valve for voltage when trying to light?
Ask Your Own HVAC Question
Customer reply replied 2 years ago
Ok I will try this first thing in the morning when I am at the property tomorrow.
HVAC Technician: Andrew Smith, HVAC Technician replied 2 years ago
Let me know
Ask Your Own HVAC Question
Ask Andrew Smith Your Own Question
Andrew Smith
Andrew Smith
Andrew Smith, HVAC Technician
Category: HVAC
Satisfied Customers: 3,644
3,644 Satisfied Customers
Experience: City & Guilds Plumbing and Heating Engineer

Andrew Smith 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

6,730 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

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

953 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

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
Need a heat exchanger for model GIN 80bu-1000 14B-3A; ser. #
need a heat exchanger for model GIN 80bu-1000 14B-3A; ser. # 1607K 03798 … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a NTI- TRINITY Ti150 boiler that shuts down after
I have a NTI- TRINITY Ti150 boiler that shuts down after starting with an error 1 code? there is no power to circulation pump so boiler shuts down, for reaching max temp in heat exchanger. What do i n… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Vitodens 200 boiler used for floor heat only. The
I have a Vitodens 200 boiler used for floor heat only. The boiler will heat to boiler temp. of 28C then stop. it will do this for 5 cycles then go to fault code Eb … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Hydrotherm Boiler that needs a pressure switch
Second opinion] I have a Hydrotherm Boiler that needs a pressure switch BM8026. Model of Boiler is HI-165B. Can you help me … read more
Elliott Oxton
Elliott Oxton
NVQ Level 2
4 satisfied customers
I have a Hydrotherm Boiler that needs a pressure switch
I have a Hydrotherm Boiler that needs a pressure switch BM8026. Model of Boiler is HI-165B. Can you help me … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,730 satisfied customers
Burnham boiler will not start. It was way over filled. I
Burnham boiler will not start. It was way over filled. I have drained mostly clean water out. Site glass is two inches empty. Red light on black box comes on when I switch the unit on. Other units in … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,730 satisfied customers
Is it unsafe to have a cracked heat exchange on your
Is it unsafe to have a cracked heat exchange on your furnace? … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
We service a munchkin boiler at a residence and have been
We service a munchkin boiler at a residence and have been routinely cleaning the heat exchanger every three years. It has ssemed to be adequate but wondering if that is a good schedule? … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a Weil McLain 66-4 boiler. Which type of nozzle is
I have a Weil McLain 66-4 boiler. Which type of nozzle is the best for it? … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,730 satisfied customers
This is a boiler. The past 10 days. The Munchkin 80M boiler
the past 10 days. The Munchkin 80M boiler is a gas-fired boiler that was designed for residential homes. This boiler is rated at 92% efficiency and an Input Btu's of 27,000 to 80,000 Btu's. … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Brought a boiler from nome heating. Bought a boiler from
bought a boiler from mike west nome heating for eght thousand dollars need to insurance for my boiler … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I need a heat exchanger kit for a weil-mclain ultra 105, no
i need a heat exchanger kit for a weil-mclain ultra 105 … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,730 satisfied customers
How do I check heat exchanger for blockage. Today. Sounds
how do I check heat exchanger for blockage JA: I'll do all I can to help. How long have you been dealing with this? Customer: today JA: Do you plan on doing the work yourself? Customer: yes JA: Anythi… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
When were stainless steel heat exchangers required for
When were stainless steel heat exchangers required for residential usage and/or what HVAC company was the first to provide them. And are they as effective as touted.… read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
198 satisfied customers
Funky smell coming from heat exchanger outside...... repair
funky smell coming from heat exchanger outside...... repair guy said the gas not m ixing with the air properly..true? said probably just clogged … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Heat exchanger is a month old and heat stopped working.
Heat exchanger is a month old and heat stopped working. Three lights are blinking saying it is a limit or rollout switch … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,078 satisfied customers
I have a property with a Keeprite heat exchanger installed.
I have a property with a Keeprite heat exchanger installed. I believe the filter is clogged but I don't know where it's located. The model is PGF018K040E … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,730 satisfied customers
The condensation water leaks from heat exchanger near the
The condensation water leaks from heat exchanger near the filter and comes on the ground tray. There is no blockage of any sort. What needs to be done for auxiliary condensation tray if it is cracked.… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,078 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