Question about Dryers

1 Answer

I am trying to fix my Kenmore 90 series electric dryer which is no longer heating. I tested the high limit thermal fuse on the heater coil housing and it was blown, so I replaced both it and the thermostat along with remove the vast amount of dust that was found. After about one or two loads of laundry it is no longer heating again because the high-limit thermal fuse is blown again. I checked for continuity and everything else seems fine, and the heater coil is not grounding itself against the box either. One other variable in my problem is that when I removed the front panel the yellow w/ red stripe wire was disconnected which may just be from when I was popping the panel off. The schematic says this wire is for the moisture sensor. I plugged it back in when I replaced the fuse the first time.

Posted by on

  • 4 more comments 
  • g_murray9 Jun 16, 2009

    I checked if the heating coil was grounding against the inside of the housing, but I get no continuity between them so I'm guessing that is not the problem. Is there anywhere else I should be checking?

    Since it's the high-limit thermal fuse that is blown again I'm guessing the heating coil is remaining on while the thermostat should be cutting its power.

  • g_murray9 Jun 16, 2009

    When I took it apart the first time I vacuumed out all the ducting and the inside of the dryer which had quite a bit of lint in it. The high-limit thermal fuse burnt out after 3 loads, but the lint trap was full each time which makes me think I was getting pretty decent airflow. I'm in the process of taking it apart and cleaning/ checking for burnt wires etc.

  • g_murray9 Jun 19, 2009

    I cleaned it all out again, replaced the venting and it replaced the thermal fuse again. One thing I noticed is that the dryer was getting very hot, maybe too hot. I would set it to low heat and it would heat clothes in about 35 mins. Could this be a symptom of another problem, which is causing the thermal fuse to blow?

  • MIKE major May 11, 2010

    have you checked the vent chute for cloggs?-mike

  • break_2_fix May 11, 2010

    Check the air flow. If any path is clogged, the flow will not sufficiently cool the heating element. I came across this after a particularly wooly blanket that clogged a large portion of internal ducting. Be sure the you have disconnected power before exploring the vent path. If you can access the blower, that would be a prime place to look.

  • jdthefixer May 11, 2010

    Have you checked the heatinmg elements? If you keep blowing fuses, something is either overloaded or shorted.

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 97 Answers

Hello Friend, Your solution is simple. It sounds like your dryer is working properly, and your actual problem is a blockage somewhere in your 4 inch exhaust tubing. Check it and make sure it is not clogged up with excessive lint. Also if your tubing is clear you need to check your connection where it travels thru the wall etc. It would be a good idea to find the actual location where it exits to the ouside and check for good airflow. If you have poor or no airflow this is why your thermal fuse has blown out. Poor venting of dryer causes overheating and therefore blowes the thermal fuse. I Hope I have helped you, Tim.

Posted on Jun 24, 2009

Ad

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Kemnore 80 electric dryer: dryer spins, light works, heat does not work...used multitester on ohm setting to test for continuity on coil and thermal fuse...both seemed to be fine...back to square zero


Hello,

In addation to testing the element and thermalfuse what ya need to check is both of the thermostats that are on left side of teh housing where the heat element fits into,both of those should have zero ohms resistiance,also should check the cycling t-stat there where the thermal fuse (in the blower housing) be sure to not confuse the thermal fuse which is the blower housing with the thermal cutoff which is on the heater housing that and the high limit t-stat are the ones in the heater housing and are the most likely things making the dryer not heat.

If all above checks to be good, the timer, or the motor is whats wrong causing it to not heat.


GENE

Sep 20, 2011 | Kenmore 63942 Dryer

1 Answer

Dryer air is not getting hot. All other functions still work.


There are several things that can prevent a dryer from not heating.. Unplug Power Before checking.
Electric Models
1- Power- Your dryer runs on 220volts. 110 runs the entire dryer and 110 runs just the element. Your breaker may have half tripped. Check to see if you are getting the correct amount of power by using a ohm meter. Also check the power cord for burn marks on the plugin and the cord itself.
2- The thermal fuse can prevent this from heating. The thermal fuse is a sensor on the blower housing the measures the temperature of the air. There is a cycling thermistat near the thermal fuse. If the dryer temp gets over 190-220 degrees the thermal fuse will blow to cut power to the element to prevent fire. You can test this by using a continuity tester.
3- High limit and/or thermal cutoff. These are both sensors on the heating element housing. Thermal cutoff is at the top and the high limit is near the bottom above the heating element connectors. Test these with a continuity tester.
4- Heating element- Just below the high limit on the heater housing. Test for continuity.
5- Motor- The motor has to reach a certain rpm to activate a sinfrigrial switch inside the motor. If the rpm is not reached it will not allow current to go to the element.
6- Timer- Make sure you are trying this on timed dry. Sometimes people use air fluff and forget to change it back. The timer could also not be sending current to the heater.

Gas models
1- Electric ignitor- Inside the flame tunnel inside of dryer near where gas line hooks up. Usually if it glows than it is still good but check to see if it is sending and amp signal to the heat coils.
2- Heater coils are two valves that open up when the ignitor send signal saying the ignitor can ignite the gas. Heat coils will not open to send gas if it does not receive a signal from the ignotor. They look like two round disk with two wires running from ignitor.
3- Flame sensor- Change if you change the heater coils. The flame sensor could not be detecting the flame inside so it shuts down the ignitor.
4- Motor- See above
5- Timer See above

If you have any further questions or need further assistance please feel free to comment me back

Jul 28, 2011 | Kenmore 63942 Dryer

2 Answers

Dryer is running, but heat will not turn on


There are several things that can prevent a dryer from not heating.. Unplug Power Before checking.
Electric Models
1- Power- Your dryer runs on 220volts. 110 runs the entire dryer and 110 runs just the element. Your breaker may have half tripped. Check to see if you are getting the correct amount of power by using a ohm meter. Also check the power cord for burn marks on the plugin and the cord itself.
2- The thermal fuse can prevent this from heating. The thermal fuse is a sensor on the blower housing the measures the temperature of the air. There is a cycling thermistat near the thermal fuse. If the dryer temp gets over 190-220 degrees the thermal fuse will blow to cut power to the element to prevent fire. You can test this by using a continuity tester.
3- High limit and/or thermal cutoff. These are both sensors on the heating element housing. Thermal cutoff is at the top and the high limit is near the bottom above the heating element connectors. Test these with a continuity tester.
4- Heating element- Just below the high limit on the heater housing. Test for continuity.
5- Motor- The motor has to reach a certain rpm to activate a sinfrigrial switch inside the motor. If the rpm is not reached it will not allow current to go to the element.
6- Timer- Make sure you are trying this on timed dry. Sometimes people use air fluff and forget to change it back. The timer could also not be sending current to the heater.

Gas models
1- Electric ignitor- Inside the flame tunnel inside of dryer near where gas line hooks up. Usually if it glows than it is still good but check to see if it is sending and amp signal to the heat coils.
2- Heater coils are two valves that open up when the ignitor send signal saying the ignitor can ignite the gas. Heat coils will not open to send gas if it does not receive a signal from the ignotor. They look like two round disk with two wires running from ignitor.
3- Flame sensor- Change if you change the heater coils. The flame sensor could not be detecting the flame inside so it shuts down the ignitor.
4- Motor- See above
5- Timer See above

If you have any further questions or need further assistance please feel free to comment me back.

Jul 27, 2011 | Kenmore Dryers

1 Answer

Kenmore 70 series electric dryer wont heat up.I have already replaced the heater and the temp switch


You may want to check the Thermal cutt-off at the side top of the heat duct, or the Thermal fuse attatched to blower housing. There is also a High-Limit at the bottom of the heat duct.

Apr 12, 2011 | Kenmore Dryers

3 Answers

Where is the thermal fuse on a series 80 kenmore electric dryer. will this act as though the power is off? How can i test the fuse?


Yes, but there are several thermal limiters, they should reset when the unit cools, so likely that is not what is happening.... Forcefully turn the breaker FULLY off, and then back on, and test again...

The thermal limiters are located along the air flow path, typically downstream of your burner, the purpose is to prevent overheating and fire. These limiters stop the HEATING element and not the drum motor...

Feb 27, 2011 | Kenmore 63942 Dryer

2 Answers

Kenmore 90 Plus Series Gas Dryer that will not heat


It could be several other things thermal fuse, thermal cut out, hi limit thermostat, dryer coils, heat sensor,or igniter. All of these parts are inexpensive and easy to test and replace.There is a video at t http://appliancehelponline.com/gdryertroublevideo.html his will walk you thru the troubleshooting of these components. It may be a different model but the troubleshooting will be the same.You can also enter your model # for diagrams and illustrations. All parts come with installation instructions. Not all models are available. If you need help disassembling your machine there are videos of this also for most styles.

Jul 01, 2010 | Dryers

1 Answer

No heat


The thermal fuse is located on the blower housing while the thermal cut-off is located on the heater housing. If the dryer is electric, runs but doesn't heat, the thermal fuse is not the problem; otherwise the dryer will not run because the thermal fuse is wired in series with the motor and cuts power to the motor when it fails. The problem could the heating element, high-limit thermostat, thermal cut-off, or cycling thermostat. These components can be found in the blower housing and the heater housing depending on the model of the dryer. Specify the model number of the dryer for a more specific advice.

Apr 12, 2010 | Kenmore 63942 Dryer

3 Answers

My dryer will not start. i tried a new start switch, no change. the door switch is working. if the thermal fuse is shot will that stop the dryer from working or only stop the heater from working. the moter...


there is 2 thermal fuses on some models 1 for the heater and the other will keep the unit from coming on at all which is most likely your problem. Example on a series 90 kenmore there is a thermal fuse and high limit mounted right on the side of the heater element housing and another fuse and thermostat mounted on the blower housing. The fuse on the blower housing will kill dryer completely.

Jan 08, 2010 | Whirlpool Dryers

1 Answer

My kenmore 70 series dryer is not heating up. At first it just took longer and longer to dry, but now it isn't drying at all. This happened after the dryer was moved in order for the washing machine to be...


Not funny at all, I suspect. It sounds like the problem originated due to a faulty high limit thermostat or a partially burnt heating element. I would replace the thermal fuse and the high limit thermostat. These two components can be purchased as a set. Also check the heating element. It can be tested using a multimeter or ohmmeter. Check for continuity. A lack of continuity indicates a bad component. The thermal fuse is normally attached to or near the exhaust duct and the high limit thermostat is attached to the internal ductwork. The thermal fuse can be tested in the same manner. I will attach a photo of a high limit thermostat and thermal fuse for reference. Sorry for your trouble and I hope this helped. Best wishes.
b7624c4.jpg

Sep 01, 2009 | Kenmore Dryers

1 Answer

Kenmore 70 Series Dryer Model# 110.64742400


check the thermal fuse if it is blown also change the high limit thermal cut-off fuse www.repairclinic.com shows your parts. go there and enter model number. Also check the heat element. to get into it remove the lint filter and the two screws you'll see there then pry the top up at the front corners. And through the back you should find the heat element and blower housing and thermal fuse and high limit fuse and cycling thermostat.

Apr 06, 2009 | Kenmore 64742 Electric Dryer

Not finding what you are looking for?
Dryers Logo

Related Topics:

601 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dryers Experts

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

yadayada
yadayada

Level 3 Expert

76109 Answers

Brad Brown

Level 3 Expert

15633 Answers

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

Answer questions

Manuals & User Guides

Loading...