Question about Dayton Gas Furnace Heater

3 Answers

Pilot light won't stay lit

My ageing Vulcan Quasar 40 gas wall heater stopped working yesterday - the pilot light went out. When I try relighting it, it goes out as soon as I release the button.

I have tried turning power off at the mains, waiting 15 mins and starting the process again, but the pilot still won't stay lit. I have a wall mounted Dayton gas furnace model 3E475B. The unit has worked well for 18-years. The pilot has been frequently going out but would relight fine. The pilot will light normally but when I release the button it goes out. I replaced the thermocouple but the pilot still will not stay lit when I release the button, even when I hold it in for 2 minnutes before releasing it.

Looking for a little help. Thanks.

Posted by on

  • Anonymous Mar 11, 2014

    also it made the heater stop working some how

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 4,806 Answers

Hi
Have you checked to make sure it isn't a draught?

Posted on Dec 01, 2008

  • Lee Hodgson
    Lee Hodgson Dec 01, 2008

    The pilot light should stay lit once the thermocouple has warmed up, if its going straight out it could be defective safety valve.
    Personally I would have a Qualified gas service engineer to look at it, especially as it is ageing


    kind regards


×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Master:

    An expert who has achieved Level 3.

  • Master
  • 505 Answers

Everything is fine except the on-off swith. The entire switch can be replaced. Its a small part you will get in any repair shop and can be replaced easily.

Thanks

Posted on Dec 01, 2008

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,847 Answers

It is in all probability the thermocouple has gone bad..

Posted on Dec 01, 2008

  • Legin Varghese
    Legin Varghese Dec 01, 2008

    Just a bit of expansion on what the others have said. The thermocouple
    is a safety device that turns off the gas if there is no pilot light.
    If you look closely at the burning pilot light, there is a small metal
    tube that sits directly in the flame, with wires that lead back to the
    gas valve. The thermocouple generates a small amount of electrical
    current when heated by the flame. This current keeps the gas safety
    valve open. If the pilot light gets blown out, the current stops and
    the gas valve closes. When you light the pilot light, you hold down the
    over-ride button for about 30 seconds. This allows the gas to flow long
    enough to heat up the thermocouple and generate current and then you
    can release the over-ride button and gas will continue to flow. If the
    thermocouple is defective, then as soon as you release the over-ride
    button, since there is no electrical current, the gas will stop flowing
    and the pilot light will go out.



    This is a pretty common failure on water heaters and furnaces.
    Replacement of the thermocouple is fairly simple if you are the
    handyman type. If not, the thermocouple is a cheap part -- about $10
    bucks, but the service call may run you $100 or so. Before you call a
    serviceman, get all of the brand and model information from the
    information plate on the heater so he can bring the proper replacement
    part.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Pilot light of gas fireplace went out. Normally the pilot light is lit, and you turn on the fireplace with a light switch on the wall. Is it safe to relight the pilot with a match ?


if the stove or fireplace doesn't have electronic ignition then yes its looking for a pilot lite I used to have a old water heater that did this , turns out the problem was defective gas regulator making the pressures go up/down also was leaking outside that's what made it noticable

Dec 07, 2016 | Heating & Cooling

2 Answers

Wher is pilot light


Why will my pilot light on the gas water heater not stay lit for ...

diy.stackexchange.com/questions/.../why-will-my-pilot-light-on-the-gas-...
Jul 28, 2011 - The pilot light went out on my gas water heater. I followed the ... This could be from a valve not being all the way open. It could also be from a ...

How To Relight Your Pilot Light On Your Water Heater ...

? 7:54
https://www.youtube.com/watch?v=gqM7kMkkFAI
Apr 15, 2013 - Uploaded by TipsNNTricks
How To Relight Your Pilot Light On Your Water Heater. TipsNNTricks .... I answer the following questions in this video. How can I relight my pilot ...

How to Light a Water Heater (with Pictures) - wikiHow

www.wikihow.com/Light-a-Water-Heater

wikiHowJump to Questions and Answers - If the pilot light doesn't relight or goes out immediately after ... if you are unable to light the water heater after several attempts.

Jan 13, 2016 | Water Heaters

1 Answer

Pilot won't stay on


Burners don't have anything to do with the problem of pilot not lighting. Is the problem that flame will not 'stay' lit? Or you can't even get a flame to ignite? If former: possible bad pilot generator or bad gas valve. If latter, possible bad gas valve or no fuel to ignite.

Dec 23, 2012 | Hayward H Series Pool & Spa Heater 400k...

1 Answer

Vulcan Quasar wall furnace, pilot will lit and burner starts but goes out after a few minutes. sometimes pilot will relight but most often fails to light till unit cools down. Any suggestions?


You may need a new thermocouple if you have been able to light it before.It is located above the pilot lite and needs to get hot to keep the gas flowing.You can pick up a universal thermocouple a the local hard ware store.Shut the gas off,unscrew the coupling nut and remove the old one.Bend the the new one like the old one and replace.Try not to kink the new one.Good luck and thanks for choosing FixYa.com.

May 15, 2011 | Heating & Cooling

1 Answer

How to light the pilot light on a natural gas wall heater


SEt to pilot, Push knob, push pezio ignighter until pilot lights, hold for 30 seconds. if it stays lit turn to on, if it doesn't stay lit, you have a bad thermocouple

Mar 24, 2011 | Vulcan Heating & Cooling

1 Answer

Noisy pilot light Vulcan Quasar 40


Simply clean out the jet tube with a fine wire, the sound you hear is the gas blowing by the irregular edges, and swirling and not mixing and producing sound waves, (Bit like a flute) So, you need to clean the tube right out, and smooth off the end again, & sorta "Countersink", Flame the end too, at the end.use a very fine needle file, and make it look like new, that will sort your problem out. Then adjust so you have a good gas flow. Also check out it isn't blocked too.

Apr 30, 2010 | Cozy Enclosed Front Console Heater 20,000...

1 Answer

Need to turn on pilot light of Williams 3003622 serial # 400518D


Find the gas valve and turn it to pilot. (Or light) Use a long reach lighter. Light the lighter and press the knob in. Light the pilot and continue to hold the knob in for about 15 seconds. When you release it, the pilot should stay lit. If it doesn't, you need a new thermocouple. That's the small tube that the flame touches when the pilot's lit. They're inexpensive and usually not too hard to replace.

Jan 30, 2009 | Williams 3003622 Ceramic Wall Mounted...

2 Answers

Pilot light won't stay lit


Look for dust and lint. Look for them in places where gas should be freely flowing. I had a similar problem with an Empire Corcho wall-mounted propane ceramic catalyst heater. First it was the pilot light, then the #2 ceramic mantle. After horsing around with the gas lines and pressure regulators and trying to re-aim the pilot, it all turned out to be dust and lint in the gas passages. A little dust bunny in the brass pilot tube gave me a pilot light the shape and color of a banana. One puff of compressed air, and I got back my razor-sharp pilot. And some dust in the chimney of the #2 burner kept it burning blue/yellow and blistering paint off the upper surfaces of the heater. A bit of cleaning with a shop-vac put that right. "Passive" heaters are very much prone to this sort of problem because they rely on convection currents (i.e. LOW velocity) to get the job done. Convection currents are notorious dust collectors, as in COBWEB CITY.

Aug 23, 2008 | Heating & Cooling

3 Answers

Vulcan freeloader hot water heater


Could be moisture in the gas supply line - get your gas fitter to purge the line at the meter.

Jul 08, 2008 | Heating & Cooling

Not finding what you are looking for?
Dayton Gas Furnace Heater Logo

487 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dayton Heating & Cooling Experts

paulcarew

Level 3 Expert

2184 Answers

Mack Baxter

Level 3 Expert

381 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Are you a Dayton Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...