Question about Dryers

1 Answer

My kenmore 90 series gas dryer takes 2+ hrs to dry a normal load of clothes. Cleared vent and observed flame cycling - appeared normal except that the temperature (taken with meat thermometer stuck in the vent just below the lint filter) would only go up to 100F before cutting off flame. Basically, it will cycle off and on between 80 & 100F.

Posted by on

  • 3 more comments 
  • jhanak1 Jan 02, 2011

    There are four wires (2 red, 2 purple) connected to the switch. Which, do I connect together?


  • jhanak1 Jan 02, 2011

    which wires together - there are 4; 2 red, 2 purple

    Model 110.70902990

  • jhanak1 Jan 04, 2011

    Put a clip jumper on the reds and yep the fire stayed on... Went to Sears and picked up a thermostat part #3387134 for $26.38. Two screws and four slip-on wire connections and done! Dried a big load of jeans in one cycle. Thanks!!

  • jhanak1 Jan 04, 2011

    Great service, I didn't burn up or buy any extra parts... now that's a first! Thanks for the step by step directions. I will recommend this service to my friends and coworkers.

  • jhanak1 Jan 04, 2011

    Thanks for the step by step instructions - worked without any problems. Replaced the thermostat in less than 15 minutes. Part #3387134 / $26.38 from Sears.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,554 Answers

What causes the dryer heating to cycle off and on is the cycling thermostat. Therefore, the cycling thermostat is malfunctioning if the dryer doesn't cycle off and on in the right temperature. Verify this by bypassing the cycling thermostat located on the blower housing alongside with the thermal fuse.
My kenmore 90 series gas - jahn27_62.jpg

Make sure power is disconnected then disconnect the cycling thermostat wires and connect them together. Insulate the connection properly then reconnect power and start the dryer. If the dryer continues to heat up and seems to overheat, the cycling thermostat is indeed malfunctioning and needs to be replaced. Do not run the dryer fro long with the cycling thermostat bypassed or else you will end blowing up the thermal fuse, thermal cut-off, and/or the high-limit thermostat.

Indicate the exact model number of the dryer should you need further assistance. You don't have to accept or rate this solution in order to post comments or information. But accepting a solution will not stop you from communicating with the expert. You can still communicate with the expert as long as you need assistance regarding the issue stated herein.

Posted on Jan 01, 2011

  • Jahn27
    Jahn27 Jan 02, 2011

    My apologies for the delayed response.

    The purple wires are for the cycling thermostat's internal bias heater while the red ones are for the contacts. Connect the red ones.



1 Suggested Answer

  • 2 Answers

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

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Kenmore Elite HE3 not heating up when vent connected

check outside of house for any obstructions to the outlet. make sure the vent is clean

Jan 02, 2013 | Dryers

1 Answer

Have a Kenmore 90 series gas dryer model 110. 72922188 that won't come up to heat and dry the clothes...Popped the front, cleaned all the lint areas, checked the cycle knobs for proper setting, tub/ motor...

aslong as the ignitor is glowing red then a click frome the flame switch and lights the burner tube and continues to repeat this over then dryer is ok ...... take venting off back of dryer and do a test load .... that will solve if it's a venting problem... if dryer dryes clothes with venting off back of dryer then it is a venting problem ..... from vent tube to out side exhaust... if dryer dosent dry clothes with vent off then u need to replace the gas coils black cylinders on top of gas valve... cost around $30.00 and very easy to installl 2 phillips screws in bracket cap on top of the coils slide off and replace one at a time there is a large coil and small coil and they both come in same kit and need to go back in the same spot they came off in ....part numbers..# 306106 306105 or recheck your model number off dryer data plate and order off

Jan 28, 2011 | Kenmore Dryers

1 Answer

I have a Kenmore 90 Series gas dryer. It takes 4 90minute cycles to dry clothes. I have cleared the exhaust and still dosent work. It does get hot, but the flame goes off and on off and on. I'd like to...

The first thing to do is to make sure the vent is "cleaned". This means that it is verified cleared either by sight, looking through to outside if it's a short vent or having a vent cleaning brush sent from one end to the other. It can also be obstructed thus allowing air out but not the proper volume. One way to isolate is to run the vent from the back of the dryer to the window, run a load, and see if problem persists. If it's fine than your vent is ok. Other things are the gas valve coils. There are two black coils that sit on the valve and they open sometimes. They should measure from 1k to 2.5k. If those are good, you could have a kink in the gas line or a bad thermostat.

Oct 24, 2010 | Kenmore Dryers

1 Answer

I have a kenmore 70 series gas dryer. the dryer works pretty normal except the clothes take a little while longer to dry and they all smell badly of natural gas. i opened it up and and i can see the...

Check the vent hose for kinks . Also check the exhaust at the outside to make sure it has good air flow to the outside . A dryer either heats or not . Due to it heats , the only possible problem is vent hose blockage .

Sep 23, 2010 | Kenmore Dryers

2 Answers

Dryer doesn't dry (flame cuts out)

279834 is the part number for the 2 coils ( kit ) which mount on the burner . Only 2 screws hold the coil retainer . One coil is opening ( shorting ) after it gets warm . Replaceing both will solve the problem . Easily replaceable .

May 29, 2010 | Maytag Neptune MDG5500AW Gas Dryer

1 Answer

Kenmore dryer 90 series, heats a little, but doesn't get hot and takes 3 to 4 1/2 hrs to dry a med. size load.

Check vent path from lint filter all the way to the exhaust vent to make sure it is clear. If the dryer has a wet/dry sensor it could be malfunctioning. Try a manual cycle to see if the problem occurs then.

Jul 18, 2009 | Dryers

1 Answer

Clothes smell like gas


A gas leak can cause a fire in your home. Although, we have always used a gas dryer, and the clothes do have a fresher smell to them than an electric dryer. Any gas which may be in the area would be consumed when the gas flame was burning as normally the pilot remains lit throughout the drying cycle.

Jan 24, 2009 | Kenmore 43142 Front Load Washer

1 Answer

Dryer heats up but does not dry clothes

first take the venting off the back of the dryer and dry a load if dryes normal replace venting if takes a long time to dry have a repair man clean the dryer

Jun 12, 2008 | Kenmore 74602 Gas Dryer

1 Answer

Very long drying time

ck vent system if vent not oper it can cause flame roll out and shut off unit also ckd flame sensor on side of burner

Jun 01, 2008 | Kenmore 73952 Gas Dryer

1 Answer

Dryer won't dry

  1. thermostate 2 the gas valve cylanoids the 2 black things on top gas valve can be bad will heat then stop heating 4 awhile thay drop out dont open valve watch your valve listen 4 it if comes on run heat goes off dont come back on 4 awhile 3 5 min bad valve cylonoids

Dec 29, 2007 | Kenmore 64952 Electric Dryer

Not finding what you are looking for?
Dryers Logo

Related Topics:

95 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dryers Experts


Level 3 Expert

79851 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Brad Brown

Level 3 Expert

17155 Answers

Are you a Dryer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides