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Dryer running but not heating.

The dryer runs, but will not heat. The starting coil heats up and glows red, but gas will not come out of the gas valve.

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  • Dryers Master
  • 9,472 Answers

If the igniter glows but does not light, you will need to replace the "gas coils" on the machine. Here is the coil kit to order.
Here is a video to walk you thru the repair process.

Posted on Nov 07, 2012

6 Suggested Answers

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Posted on Jan 02, 2017

catriver
  • 878 Answers

SOURCE: Gas dryer not heating up

Flash, did you check the thermal fuse in the back? On a gas dryer the drum will still turn if it's blown. check out the picture and post back.

Posted on Mar 29, 2007

VOTIT
  • 2071 Answers

SOURCE: Gas Dryer quit heating today

Just click below;

If your dryer doesn't heat, check these:

Igniter
Gas valve coils
Thermal fuse

Hope it may help you;

Regards;
VOTIT

Posted on Jan 28, 2009

  • 77 Answers

SOURCE: maytag gas dryer, no heat, ignitor wont glow

The machine will check all safety features first. check the overlimit by the burner. It may have a reset. If not, turn power off and check continuity (ohms). Good luck.

Posted on Apr 18, 2009

localwonder
  • 6784 Answers

SOURCE: alg331raw gas dryer. Runs but no heat. Worked

Check the following to address this issue


1. Gas valve coils
Igniter glows, then shuts off without igniting gas - the problem is probably with defective coils (black, located on top of the gas valve). It is recommended to replace all coils (usually two or three) if found defective.

Note: Sometimes the whole gas valve may be defective, thus not letting the gas out. However, this problem is not common.

2. Thermal fuse
Most dryers have a thermal fuse, which burns out when the dryer overheats, in which case the dryer will either not run at all or stop heating. The fuse is usually located on the vent duct, inside the dryer. A blown fuse will show no continuity when measured with a meter. Before replacing the fuse, make sure the blower wheel is not broken or clogged, and there is nothing blocking the venting.

Note: It is recommended by most dryer manufacturers to replace a hi-limit thermostat when replacing a thermal fuse.

3. Igniter
Igniter may burn out or break. Replace the igniter if found defective.

Note: Igniters are very fragile and break easily. It is recommended to handle the igniter only touching the ceramic part of it (usually white in color).

4. Flame sensor (or radiant heat sensor)
Replace the sensor (located near the igniter) if found defective.

Posted on Jun 04, 2009

  • 97 Answers

SOURCE: Kenmore 80 Series gas dryer starts with heat but very short time

Hello Friend, Your problem is very simple to fix. You're dryer needs 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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1 Answer

My Maytag gas dryer, Model No, LDG7500AAW will run but not heat. The igniter glows red, but the gas will not flow. What might be wrong?


Replace the 2 burner coils ,if the igniter keeps cycling trying to start the flame. If it doesn't replace the flame sensor mounted on the side of the burner tube.

Nov 06, 2012 | Dryers

Tip

Whirlpool or Kenmore Dryer Does Not Heat


Electric

First , check the circuit breaker to make sure they are on . Be sure to UNPLUG the dryer , while checking with an ohm meter . When checking WITH power , BEST to have another person available in case of emergency . I do know of 1 person killed while working on his dryer .
A dryer operating on 240 volts , sends 120 volts to the timer and 120 volts to the motor . In between these two , are the thermal cut-off , and the element ( this is the basic operation parts ) . The 120 volts from the motor , goes directly to the element if selected for heat . The timer circuit , sends the other 120 volts , thru the operating thermostats , then thermal fuse , then thermal cut-off , then high-limit thermostat , then to the element . Usually , not ALL the time , the thermal fuse ( number 1 ) is the problem . The heating element ( number 2 ) is usually the problem , if the thermal fuse is good .
If the thermostats , element , and thermal fuse check good with an ohm meter , remove 1 wire from the element and check with a meter , which side is NOT getting 120 volts . Trace the wire which will either go to the timer ( occasionally ) or to the motor ( extremely rare ) .

Gas

On a gas dryer , for no heat , or , heats for a short time then runs but no heat afterwords until cooled down , first check that the electronic igniter , glows red . If it does NOT glow red , then check power to the burner ( 2 wires ) . If no power , then the thermal fuse is bad . (On electric dryers , the thermal fuse keeps the dryer from starting . On gas dryers , it keeps the dryer from heating . The thermal fuse , is a 1" long , or oval , white piece , with 2 wires going to it ) . Also if it does not glow red , the igniter itself could be bad . Again , check with an ohm meter . If the igniter glows red and clicks off , but no gas , the sensor could be bad . This sensor , is mounted to the side of the burner box , and when the igniter gets hot enough to ignite the gas , the sensor opens , sending power to the coils , which open dispensing the gas to heat the dryer . To check the sensor , with the drum removed , start the dryer , and after the igniter gets red , pull one of the wires OFF the sensor , and the gas should ignite . Do this very carefully , as electricity WILL be in the wire pulled off . If the dryer heats for a short time then stops heating , the problem will be the burner coils . These coils will get warm from the electricity going thru them , and will " open " ( short ) internally , until they cool down . Then heat again for a short time , then open , until cooled .
Most of the time , either the thermal fuse ( 1 ) or the coils are bad ( 2 ) or the igniter is bad ( 3 ) .

........A thermal fuse is a white 1" long torpedo looking piece , or , a white oval shaped piece , with 2 wires going to it .

NOTE1 : The thermal fuse keeps an electric dryer from starting and keeps a gas dryer from heating .

NOTE2 : If your dryer heats but the clothes do not dry , then a venting problem is obvious , as a dryer either heats or doesn't heat . Pull the dryer out and disconnect the vent from the dryer . Dry a load of clothes and if/when they dry in the normal amount of time , this tells you either the vent hose is kinked , maybe pushed back too far , or , the outside vent is blocked , or , the vent in the wall is restricted to the outside .

Electric Dryers

NOTE3 : If your lint screen is on top of the dryer , the element , thermal fuse , and thermostats are behind the rear dryer panel ....If the lint screen is behind the dryer door , then the element , thermal fuse ( located behind the lint screen housing ( 2 screws ) , and thermostats , are located behind the lower front panel .

on Apr 17, 2010 | Dryers

1 Answer

The dryer runs but no heat. The igniter glows when you start the dryer for about 10-20 seconds then goes out but the gas never ignites. I have tried bypassing the high limit fuse in the vent and have...


Hi,

If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes it is still not working properly.



if you dryer is gas check out this gas no heat tip....



If you have an electric dryer, you can have many different things that can go wrong causing the dryer not to heat.



check out this electric no heat tip...


heatman101
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Sep 11, 2010 | Roper RGX4634KQ Gas Dryer

2 Answers

Amana NDG2335AW Gas Dryer runs but doesn't heat


Check the spark ignitor when firtst starting the dryer up. It should click within the first 15 seconds to light the pilot up

May 31, 2010 | Amana NDG2335AW Gas Dryer

1 Answer

Dryer runs but no heat


if the glow bar is lighting the next thing will be the gas valve there are two coils on top of the gas valve that have wires going to them replace both coils "they come as a kit"

Apr 09, 2010 | Amana LGA10 Dryer

1 Answer

Kenmore 80 series gas dryer has not heat


most of these dryers have a little plastic plug on the front, left side. pop that plug out and look inside after turning it on. you should see a red glow. if not, then your ignitor has broken. if you see a glow, then the problem is probably one of the two little coils on the gas valve. these coils will sense if there is something to light the gas [the red glow] and open the valve - if the coils are bad, they won't open the valve

Aug 17, 2009 | Kenmore Dryers

1 Answer

Maytag Gas Dryer doesn't heat up


The igniter is the part that ignites the gas in the Maytag gas dryer. Long time a go the dryers use to have a pilots. The pilots where on all the time, even when the dryer was not been use.

This wasted a lot of gas and a new design was needed. That is when the igniter or glow bar as is also known, came to be. A bad igniter could be the reason for your Maytag gas dryer not heating.




The radiant sensor is a small black box that attaches to the combustion funnel. The job of the radiant sensor is to allow the igniter to glow until it is real hot, then it shuts the igniter off and opens the gas valve to start the heating process. A bad radiant sensor could the the reason for your Maytag gas dryer not heating.




The gas valve has two coils or solenoids. These coils job is to open the gas chambers inside of the gas valve.

When one of the coils goes bad, the symptom is that the igniter glows, but the gas valve won't open to let the gas flow through the gas chamber to be ignited.

A bad set of coils could be the reason for your Maytag gas dryer not heating.




The hi-limit thermostat is located on top of the combustion funnel, and its job is to open the circuit to the gas valve if the airflow to the dryer is restricted for any reason.




The cycling thermostat is use to control the temperature inside of the dryer. It is factory preset at 155 degree, in other words it will open the circuit to the gas valve when the temperature reaches 155 degrees.

This thermostat is opening and closing all the time the dryer running. A bad cycling thermostat could be the reason for your Maytag gas dryer not heating.




The timer is the part that direct the electricity to the other parts in the dryer. This part works very hard and the contacts wear out and some times they burn out. If the timer contacts won't close, the dryer will not heat.




The motor switch is another safety device that only closes the heating circuit when the motor is running. When the motor is not running the circuit of the gas valve is open and the dryer will not heat. A bad motor switch could be the cause for your Maytag gas dryer not heating.

As you could see, there are a lot of parts inside of the dryer that have to be in good working condition for the dryer to produce heat.

May 27, 2009 | Maytag Dryers

1 Answer

Kenmore series 80 gas dryer will not heat up


Hi. this dryer has a set of coils that sit on top of the actual gas valve assembly. these coils activate the main and secondary gas valves and if the coil assembly is malfunctioning or, the wires and clips are corroded, the coils will not activate the gas valves to open and close. this malfunction will affect the heating process within this dryer unit.

I recommend inspecting the dryer coil assembly. use a mulitimeter to test for Resistance. you should get a reading of some type of current flow through the wires and, if this is the case, the coils are bad and they will need to be replaced.

This test is actually not needed. the non existing heat is a red flag on its own and, it greatly confirms a major failure within the coil assembly. replacing the coils will fix your dryer.

PLease rate and god bless:)


Apr 20, 2009 | Kenmore Dryers

1 Answer

No heat


Check the glow plug.
Take off the bottom front panel, push the start button and look for a red glow. This glow plug is about the size of your little finger and is hard to see when it's off but you will see a red glow if it's working. No glow, replace the glow plug.

If it glows for a few seconds then goes out then the solenoids on the gas valve should be checked with an OHM meter.

Dec 16, 2008 | Dryers

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