Jump to content


Use this Search Box to Find Appliance Repair Help Now
Need help finding your model number?
365-day return policy on all parts purchased here, even electrical parts that have been installed!


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Welcome to Appliantology.org, the Web's Premiere Appliance Repair Resource!

The world-famous Samurai Appliance Repair Forums


You can post a question and get repair help for FREE! Click here to get started.


Already a member of the Appliantology Academy? Just sign in with your username and password in the upper right-hand corner of the screen.

 


Photo

Kenmore Gas Dryer 11087581110 Heating Issue


  • Please log in to reply
29 replies to this topic

#1 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 23 December 2012 - 10:43 PM

Greetings,

 

This is about my Kenmore gas dryer, model number 1108751110. The problem is that the gas flame only lasts for about 8 minutes, then abruptly shuts off. It won't reignite again for about an hour. The igniter works fine, the problem appears to be that the gas is just shut off after about 8 minutes, and will not relight until after the dryer has been turned off for about an hour.

 

The research I was able to do suggested that the coils were bad, so I ordered new ones and replaced them, but the problem is unchanged; it starts on the first try and heats for about 8 minutes, and then the gas shuts off. The dryer continues to run and sounds like it's working fine, but when I open the lower front panel, I can see that the flame has gone out.

 

I'm really hoping this is something relatively easy to diagnose and repair. I do have tools and skills, just no knowledge when it comes to gas dryers.

 

Thank you for your time.

 

 

Take care,
          ~Chris


Use the Appliantology Parts Search Box to Find What You Need!
Enter your model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

#2 RegUS_PatOff

RegUS_PatOff

    Sensei

  • Academy Instructor
  • PipPipPipPipPip
  • 33,588 posts
  • Location: USA
  • Flavorite Brew:Chief NTSC Black & White

Posted 23 December 2012 - 11:15 PM

... the gas flame only lasts for about 8 minutes, then abruptly shuts off. It won't reignite again for about an hour.

... The igniter works fine,

 

1) try an empty load with the Vent disconnected

2) When the Flame should re-light, is the Ignitor glowing ?


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#3 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 23 December 2012 - 11:43 PM

I have tried it with the vent disconnected, and it made no difference. 

 

After the flame goes out, I haven't noticed the igniter trying to relight it, but I haven't watched it that long after it goes out. What I do is open the door to stop everything, close it, and hit the start button. The igniter lights up for 8 to 10 seconds, and then goes out, with no flame. After the machine has been off for about an hour, it will relight, and the same cycle happens all over again.



#4 RegUS_PatOff

RegUS_PatOff

    Sensei

  • Academy Instructor
  • PipPipPipPipPip
  • 33,588 posts
  • Location: USA
  • Flavorite Brew:Chief NTSC Black & White

Posted 23 December 2012 - 11:52 PM

... and this Dryer has worked OK up till now at this location ?

 

sounds like it may be a bad Flame Sensor (thermal switch)

http://www.repaircli...sp?R=154&N=2681


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#5 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 23 December 2012 - 11:58 PM

I've had this dryer since it was new, probably more than 20 years. About ten years ago I replaced the rollers and belt, and everything was great. Over the past year, it seems like it's been taking a little longer to dry the clothes, so I cleaned out the vent. This current problem started a few months ago. I was drying a load, and after an hour the clothes were cold and wet. I restarted it and could feel it getting warm, but after an hour the clothes were still damp, and there were no signs of any heat. That's when I removed the lower front panel and watched what happened, and it's been that way ever since.

 

How do I test the flame sensor?



#6 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 24 December 2012 - 12:04 AM

I just watched the video, and have a question; would it be easier to monitor the power to the coils and see if it goes off when the flame goes out?



#7 RegUS_PatOff

RegUS_PatOff

    Sensei

  • Academy Instructor
  • PipPipPipPipPip
  • 33,588 posts
  • Location: USA
  • Flavorite Brew:Chief NTSC Black & White

Posted 24 December 2012 - 12:10 AM

there's (3) sections of the Coils...

Main

Assist

Hold

It would be tricky to monitor all of them...

Is there a Gas smell when it doesn't re-light ?

View the Ignitor to see how long it's OFF when the Flame goes out...


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#8 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 24 December 2012 - 12:15 AM

There has been no gas smell at all.

 

Tomorrow I will check the igniter as you suggested, and check the sensor for continuity, although I'm sure it will read good when I first test it. Perhaps the trick will be to test it as soon as possible after the flame cuts off. 

 

Regardless, I will post my findings tomorrow. Thank you so much for your time!

 

 

Take care,
          ~Chris


#9 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 24 December 2012 - 08:05 PM

Okay, here's my update:

 

I tested the flame sensor and the igniter for continuity and both were good. I started the dryer and it ran fine for 7 minutes, at which point the flame went out. I had a voltage sensor next to the two wires that come from the back and supply power to the coils, igniter and flame sensor, which lit up when I started the dryer and went out at the same time the flame went away. I let the dryer continue to run with no flame for 5 minutes, and the igniter never tried to relight it during that time. I then shut the dryer off and went to test the sensor and igniter for continuity again, but it took me about ten minutes, and by then both tested good.

 

I then restarted the dryer, and it worked just fine, but the flame only lasted for 4 minutes this time. I shut the dryer off and again tested the sensor for continuity. As I had my leads attached, it went from open to closed. I did it all one more time, and this time the flame only lasted for two minutes, and the sensor was open for a few minutes, and then closed again.

 

I was surprised at how quickly it would work again, because before it took an hour of off time before it would reignite. This time it seemed to work again after only a few minutes, but the length of time it would remain lit grew shorter and shorter with each try.



#10 kdog

kdog

    RoughShod

  • Appliantology Fellow
  • PipPipPipPipPip
  • 7,465 posts
  • Location: Canada
  • Flavorite Brew:Dickens Cider

Posted 24 December 2012 - 11:13 PM

Okay, here's my update:

 

 I had a voltage sensor next to the two wires that come from the back and supply power to the coils, igniter and flame sensor, which lit up when I started the dryer and went out at the same time the flame went away. 

 

This would indicate a thermostat is opening (high limit ?) as the exhaust temp rises - if you run the dryer empty, that temp increases quite fast.  You say you ran it with vent disconnected, is there a good flow of air from the back ?  Any way you can measure the exhaust temp while it runs ?


Help us keep the lights on: buy appliance parts here ==> http://repairclinic.com

For service manuals and lots of other goodies, become an Apprentice ==> Apprenticeship

#11 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 25 December 2012 - 12:19 AM

This would indicate a thermostat is opening (high limit ?) as the exhaust temp rises - if you run the dryer empty, that temp increases quite fast.  You say you ran it with vent disconnected, is there a good flow of air from the back ?  Any way you can measure the exhaust temp while it runs ?

 

There was good flow from the back, and yes, I can get an approximate temp of the exiting air. I'll be back in about 15 minutes...



#12 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 25 December 2012 - 12:39 AM

Okay, this time it ran (empty) for 6.5 minutes before the flame shut off, and the exhaust temps were as follows:

 

At startup: 59.4º F

After 2 minutes: 104.2º F

After 4 minutes: 119.5º F

After 5 minutes: 136.4º F

After 6 minutes: 148.6º F

When it shut off after 6.5 minutes: 147.6º F

 

This time, however, I did hear a noise when it shut off that sounded like a very light tap of a metal trash can with a wooden stick.



#13 kdog

kdog

    RoughShod

  • Appliantology Fellow
  • PipPipPipPipPip
  • 7,465 posts
  • Location: Canada
  • Flavorite Brew:Dickens Cider

Posted 25 December 2012 - 03:37 AM

That is the thermostat cycling that you hear - the above description sounds like a proper function so far - continue running until burner reignites etc and watch temp output. Running unit without a load is sometimes not a fair test but see what happens.


Help us keep the lights on: buy appliance parts here ==> http://repairclinic.com

For service manuals and lots of other goodies, become an Apprentice ==> Apprenticeship

#14 jb8103

jb8103

    Senpai

  • Chief Appliantologist
  • PipPipPipPip
  • 534 posts
  • Location: USA
  • Flavorite Brew:Ginger ale

Posted 25 December 2012 - 07:27 AM

I hope I'm not just adding noise here, but I recently had an elderly Rheem furnace with a mysterious short-cycle problem. Long story short, we opened the draft shutters all the way, and it cleared up.

 

I dunno, might be relevant here.


First, do no harm.

#15 telefunkenu47

telefunkenu47

    Kohai

  • Sublime Master of Appliantology
  • PipPipPip
  • 405 posts
  • Location: USA

Posted 25 December 2012 - 12:07 PM

I would replace the operating stat and then check it. if the power to the gas valve in being interrupted by the stat and then not coming back for the relight, it can only be the stat, which is by the way, over ten years old. Am I right?


Even root canal is easy...if you're a dentist...

#16 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 25 December 2012 - 01:22 PM

Good morning Gentlemen, Merry Christmas!

 

I'm at a bit of a loss for words today because now it appears to be working properly. This morning I started it up and it worked fine for 6.5 minutes, and then the flame went off. I left it running, and about 5 minutes later I saw the igniter start to glow, and the flame restarted. 

 

I am going to try and do a load of laundry this afternoon and will report on my findings. I hope I didn't waste everyone's time.

 

Thanks again



#17 RegUS_PatOff

RegUS_PatOff

    Sensei

  • Academy Instructor
  • PipPipPipPipPip
  • 33,588 posts
  • Location: USA
  • Flavorite Brew:Chief NTSC Black & White

Posted 25 December 2012 - 01:29 PM

if you monitor the Vent output temperatures,

The Flame should normally cycle ON/OFF somewhere between about 135F and 160F

It would take longer between "cycles" when running with actual wet clothes.


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#18 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 25 December 2012 - 03:52 PM

Thanks for the info! I just finished washing a load of clothes, and am about to try drying them. I have a FLUKE 65 infrared thermometer.



#19 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 25 December 2012 - 04:36 PM

Well, here's one more update. With a load of wet clothes, the dryer has been running for 20 minutes so far with the flame on, and the exhaust temp hasn't exceeded 117º F, and in fact seems to be averaging around 110º F. So far, so good. I will check on it in a few minutes, and give another update when it's finished. 

 

Thanks again for everyones help, I really do appreciate it!

 

 

Take care,
          ~Chris


#20 PKRWUD

PKRWUD

    Ikkō-ikki

  • Grasshoppah
  • PipPip
  • 29 posts
  • Location: USA

Posted 25 December 2012 - 04:50 PM

Also, one more footnote; today I tested the old coils that I replaced for continuity, and there was none with either coil. I don't know if that means anything, but I thought I would mention it.






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Use the Appliantology Parts Finder to Get What You Need!
Enter a model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

Your Sometimes-Lucid Host:
Samurai Appliance Repair Man
"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly,
spilling my steaming entrails onto your floor."


The Appliance Guru | Master Samurai Tech

Real Time Analytics