Results 1 to 8 of 8

Thread: Gas Kenmore dryer 110.78942892 no heat

  1. #1
    Join Date
    Apr 2008
    Location
    San Diego
    Posts
    13

    Default Gas Kenmore dryer 110.78942892 no heat

    Model Number: 110.78942892
    Brand: Sears Kenmore
    Age: 6-10 years

    This is probably similar to questions already asked and answered, but I don't know what model numbers are similar to mine. I can't find any references to my exact model number, but I can lookup parts on repairclinic.com just fine.

    I have a gas Kenmore model 110.78942892 and everything seems to work fine except there is no heat. This was a sudden change from one day to the next, not a gradual change.

    Are there any similar manuals available with diagnostics covering this model? Looking at the parts list there are several obvious things which could potentially cause this (igniter, gas valve solenoid, venting, etc), but I am not sure how to test the components and in what order.

    Thanks,

    Paul

  2. #2
    Join Date
    Aug 2004
    Location
    McMullen Valley, Arizona
    Posts
    67,191

    Default

    Hi Paul,

    The most common part to go out in gas dryers is the gas coils.

    Here's a help link that explains what to test, and a guide to access the gas coils:
    http://www.applianceaid.com/gas_dryer.html#noheat

    Having a volt/ohm meter is a must for testing.

    Here's the gas coil kit for your model:
    Whirlpool 279834 Dryer Gas Valve Coil Kit - AppliancePartsPros.com


    Jake
    Appliance Repair School 1987-1988
    Star Appliance Tech. 2 yrs. 1988-1990
    Wards Appliance Tech. 11 yrs. 1990-2001
    Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
    Jake's Appliance Repair Nov. 2005-present

    Look-Up & Order Parts

  3. #3
    Join Date
    Apr 2008
    Location
    San Diego
    Posts
    13

    Default Failing the first test.

    Jake,

    Thanks for the reply. I am failing the very first test, which is to check that I have 110 at the first connector in the very front of the unit that leads first to the coils.

    Unfortunately, that step is assumed to pass, and there are no further diagnostics for that! I assume that is a problem with a timer or controller board?

    My next dumb question is where to find instructions for cracking the controller assembly. I can pop the top of the dryer off and pivot it backwards, but it is not obvious how the head comes apart. There were some screws through a sheet metal piece on the back, but removing them didn't seem to loosen anything. The head itself is screwed onto the dryer top with the screw heads inside the head, so obviously it was mounted before the head was closed up.

    Thanks,

    Paul

  4. #4
    Join Date
    Aug 2004
    Location
    McMullen Valley, Arizona
    Posts
    67,191

    Default

    Hi Paul,

    #59 here:
    Click image for larger version. 

Name:	P8090225-00003.jpg 
Views:	1 
Size:	131.6 KB 
ID:	15935
    is your thermal fuse, its white and it mounts on your blower wheel housing.

    Here's the thermal fuse for your model:
    Whirlpool 3390719 Thermal Fuse (disposable, One Time Fuse) - AppliancePartsPros.com


    If your not getting 110 volts to the first connector, then its possible the thermal fuse is blown, you can jump it just to test for 110 volts, or ohm it for continuity with the dryer unplugged.

    where to find instructions for cracking the controller assembly.
    You mean getting into your console assembly on top of your dryer?
    Read #20 here:
    http://www.applianceaid.com/whirlpool-dryers.html

    Jake
    Appliance Repair School 1987-1988
    Star Appliance Tech. 2 yrs. 1988-1990
    Wards Appliance Tech. 11 yrs. 1990-2001
    Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
    Jake's Appliance Repair Nov. 2005-present

    Look-Up & Order Parts

  5. #5
    Join Date
    Apr 2008
    Location
    San Diego
    Posts
    13

    Unhappy

    Jake,

    Thanks! The thermal fuse is indeed open, so I will replace that as the first step.

    When I took off the duct/enclosure that the lint trap slides into to reach the thermal fuse, I was amazed at how much lint and sand was in there. It was at least half constricted, so it was good that I had to open that up.

    Also, in the light of day (instead of late at night) I was able to get into the head. That turned out to be a good thing to do as well, because of course that is where the stuck the schematics and diagnostic sheets. They came with a nice diagram that showed how the head goes together. That was not entirely helpful at that point, since it was already open!

  6. #6
    Join Date
    Aug 2004
    Location
    McMullen Valley, Arizona
    Posts
    67,191

    Default

    Excellent, good job finding the thermal fuse was open Paul.

    Keep us updated when you finish.

    Jake
    Appliance Repair School 1987-1988
    Star Appliance Tech. 2 yrs. 1988-1990
    Wards Appliance Tech. 11 yrs. 1990-2001
    Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
    Jake's Appliance Repair Nov. 2005-present

    Look-Up & Order Parts

  7. #7
    Join Date
    Apr 2008
    Location
    San Diego
    Posts
    13

    Default Success!

    Jake,

    The thermal fuse arrived today from AppliancePartsPros. Less than five minutes to swap it out, and the dryer is good as new!

    Thanks for the good advice. This site is a great resource.

    Paul

  8. #8
    Join Date
    Aug 2004
    Location
    McMullen Valley, Arizona
    Posts
    67,191

    Default

    Excellent Paul, good job fixing it.

    Jake
    Appliance Repair School 1987-1988
    Star Appliance Tech. 2 yrs. 1988-1990
    Wards Appliance Tech. 11 yrs. 1990-2001
    Sears Appliance Tech. 4 yrs. 2001-Oct. 2005
    Jake's Appliance Repair Nov. 2005-present

    Look-Up & Order Parts

Similar Threads

  1. Replies: 6
    Last Post: November 6th, 2013, 04:08 AM
  2. FIXED: Kenmore Dryer Even Heat II stops randomly - Even Heat II
    By BobPot in forum Sears Kenmore
    Replies: 16
    Last Post: November 24th, 2012, 09:46 PM
  3. Flame cuts out ont Gas Kenmore 110.78942892
    By SD Paul in forum Sears Kenmore
    Replies: 1
    Last Post: February 15th, 2009, 01:45 PM
  4. Replies: 3
    Last Post: November 10th, 2007, 09:16 PM
  5. Kenmore Gas Dryer Low Heat
    By Rickw51 in forum Sears Kenmore
    Replies: 1
    Last Post: April 4th, 2006, 06:19 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
If you feel that you have benefited from this site, and would like to show your appreciation, you can throw a buck or two in the Appliance Blog Tip Jar - Thank you!
Facebook Page: ApplianceBlog Twitter: ApplianceBlog Google+ YouTube: ApplianceBlog