Question about Kenmore Dryers

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The dryer runs, but gets no heat.

The ignitor and everything around it checks out okay. Could the problem be in the timer and what is the wiring diagram for that area?

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Hello Friend, Your problem is very simple to fix. You're dryer needs a thermal fuse and or gas valve coils, both are very simple and affordable to replace. To replace the thermal fuse just remove back cover of dryer and look down where the air blows out. Now, just to the left where all the wires are you will see a white plastic part with two wires plugged into it. This part is called a thermal fuse. Just remove these wires and replace the thermal fuse. Now, if this don't solve the problem you will need a gas valve coil kit. To replace coils just remove front of dryer body and look below drum you will see the gas valve. The valve coils are located on top of valve (two little round black cylinders). It's simple, just remove the two screws from the little metal bracket that holds them down, unplug the wires from them and just lift them straight up off of the valve. Take notice that one has 3 wires and one has 2 wires. Just replace with new coils and plug wires back in and re-fasten metal bracket. Your dryer will run like new. Happy to help, Tim.

Posted on Jun 24, 2009

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I have a whirlpool LGR8648pwo. Runs not heat and timer doesnt move. I found a 4 prong sensor in the back of the unit. 2 prongs have continuity and the other 2 dont. Is that bad.


If no heat at all i suspect this part HERE. This is the fuse. It kills power to the gas assembly if junk gets into the filter housing and cause an overheat condition. On electric models this same fuse kills the whole dryer. On gas models it just kills the gas. If that is good the next thing to check is the flame detection sensor mounted out side of the burner chamber. It's job is to power up the ignitor. If it is open no power can get to the ignitor. If it is good then the next thing to check is the ignitor. If the ignitor is good AND you are getting power from that control klixon you mentioned with the 4 wires on it AND you can get a little heat at first but then none at all them coils need to be replaced. Here is my home video:



If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Dec 09, 2012 | Whirlpool LGR8648 Gas Dryer

1 Answer

Dryer does not heat up model mdg508daww tested ignitor,radiant flame sensor,thermal fuse and tried limit fuse and cycling fuse checked blower wheel and made sure there was no air flow restrictions and...


Hello,

A few other things that could make the dryer not heat are,

Heat selector switch on the control panel

Timer

Motor


A quick question though...i see where ya tested the ignitor but what i would like to know is does it glow or not

To test the heat selector switch ya need to use a multimeter set to measure ohms of resistiance and test the following to have Zero ohms resistiance when set to high heat setting

Red wire to blue wire terminal (wire must be removed)
Red wire to yellow wire temninal

The heat circuit on the timer is
Yellow wire terminal on the timer to the red wire terminal...on that too the wires need to be removed off of the timer

On the motor the heat circuit on the motor switch is the yellow/black wire to the black wire to determine if its good the igniter can be checked for POWER (120 volts) since the motor only sends power to the ignitor when the dryer is running because itsa built in safety feature that will prevent the dryer from heating when not running


Good luck,
GENE

Oct 03, 2011 | Dryers

1 Answer

Kenmore 500 series gas dryer has no heat and no glow. Thermostat fuse has continuity. Replaced ignitor and coils. bypassed flame sensor and still have the same problem.


Hello,

Having checked or replaced what you have thus far here a few things still to check

Cycling thermostat in blower housing,in addition to thermal fuse it must have continuty to be good

Timer check wiring diagram in control panel and check for continuty that are supposed to be closed when set to a normal heat cycle

Motor switch heat circuit check again with wiring diagram and see which wires on motor switch must be closed when running so dryer will heat.This a built curcuit asurring the dryer will never heat when motor is off

If your model has it check heat relay in control panel for continuty on heating circuit for relay(not the circuit that closes relay)

as far as power to the ignitor the hot side comes from timer to and through the thermal fuse and cycling t-stat, to ignitor.the neutral comes from neutral wire on cord to and through motor when motor is running and motor switch is closed

so on ignotor plug check hot wire to ground(not neutral) if has 120 vac to it timer/t. fuse/ cycling t-stat and flame switch are all good and its the motor switch is the problem.The motor switch can not replaced seperatly and must replace entire motor

Gene

Aug 09, 2011 | Kenmore Dryers

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

Drum turns ..no heat..timer is not counting down..dryer will run endlessly with no heat


Your entire problem is that you have no heat. You will have to figure out why there is no heat , it could be ignitor or sensor or a bad thermostat. Alter you get the heat problem solved the timer will run normal.Nine times out of ten the ignitor is bad. Hope this helped you.

Apr 29, 2011 | Kenmore 74212 Gas Dryer

1 Answer

Kenmore series 90 electric dryer will not heat. Have replaced thermostat-thermal cutoff and thermal fuse. tried bypassing all by connecting wires with electric tape to test with no results - There are no...


Okay Element should read around 38 OHMS if okay providing the voltage is at the element then it should heat, if no volts then check stat , cut outs and timer, in that order

Feb 22, 2011 | Dryers

1 Answer

GE gas dryer, no heat, new ignitor


Hi!! make sure that you have 120 volts going to the glow ignitor.the gas valve will not turn on the gas if the ignitoe wont glow..if it glows the check yout coil boosters they are round and are located by the gas valve.then if not you have a bad timer.they are usually round and are black..good luck..

Jan 03, 2009 | Dryers

1 Answer

Running but not heating up to dry


Does the Ignitor heat up? If not, the timer might not be telling the gas system to start.

If the ignitor is heating up, and there is no gas, it may be a wiring problem or a gas valve problem. Need more information to solve.

Next step if ignitor is working, is to check to see if voltage is being sent to the gas valve.

Oct 28, 2007 | Frigidaire GLGQ642A Gas Dryer

2 Answers

Dryer won heat timer dosen't avance


huntman, the model posted shows as a gas dryer. In the lower left side there is a square plastic peep hole. Take a putty knife and pull it off. Set the dryer to high heat and take a look in the hole. Does the ignitor glow? If it doesn't you either have a bad thermal fuse or a bad ignitor. Start with the thermal fuse. You will have to remove the back panel to get at it. I will attach a photo. You can ohm it out, or just jump the wires temp. to see if the ignitor glows. If theral fuse is good and the ignitor does glow, you probabley have a bad set of coils. These sit on the gas valve are easy to replace. The timer won't advance without the heat. Check this out first...Catriver..post back.

Mar 15, 2007 | Roper RGS7745PQ Dryer

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