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Same problem continued: Got lower panel off, both coils OK, igniter works,flame blue, but flame shuts off after ~ 3-4 minutes. Does keeping lower panel off affect this?

What is causing flame to shut off prematurely? Does burner assy. cycle on and off during normal operation, or stay on?

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  • Jerry Smith Mar 30, 2015

    Can you give me brand name and full model. I don't need serial #

  • Jay Wartell Mar 30, 2015

    Jerry Smith: Kenmore Elite 27" Model 110.74972300 I tested resistance of the coils and I get 500 to 600 ohms on each. If I apply AC to them to see if they activate the gas valves, should I hear the sound of the gas valves engaging?

  • Jay Wartell Mar 30, 2015

    After I cleaned the considerable lint inside the dryer(10 yrs old), now I can't get the flame to come on. Suggestions?

  • Jay Wartell Mar 30, 2015

    Update: I was getting AC from the heater control, but no flame turn on. I applied AC directly to the two terminal coil, worked OK. AC to the o/s terminals of 3 Trml coil (W,Blk) only buzzing no click, AC to gnd & middle trmnl(W, Blu) nothing, got continuity from igniter, and flame switch. Shouldn't igniter still light up on start if gas valves don't open, or do they depend on gas valves opening?

  • Jerry Smith Mar 30, 2015

    Igniter should come on regardless of gas valve coils. On top of blower housing should be ceramic looking thin device with 2 wires to it. Check with wires unplugged. Should be contiuity thriugh it. Its a safety fuse. Next to it should be on of the temp controls. Should also have Continuity. Look good at igniter for possible cracks. The black part is brittle and will break easily.

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  • Dryers Master
  • 473 Answers

Burner assembly will cycle on and off. There are temp controls that cause the on/ off cycle so the clothes don't get too hot or catch fire. It will cycle off faster when empty than with a normal load.

Posted on Mar 30, 2015

  • 4 more comments 
  • Jay Wartell Mar 30, 2015

    Jerry Smith: Thanks for answering. Still have same situation described. Are the "coils" really solenoids that supply power to the igniter? H.E. Dev commented that the "coils" could be bad with "cracks" in the windings so on-off cycling can't be performed. Do I understand this right?

  • Jerry Smith Mar 30, 2015

    The coils actually open the gas valve and let the gas come in to the igniter. I rare cases they could act up like in your situation. They are a fine wire wound to make the coil. You couls also have one of the main temp controls that has become too sensitive to heat and turning off to quickly. Temp controls are disk shaped items about the size of a quarter with usually 2 wires attached.

  • Jay Wartell Mar 30, 2015

    Jerry Smith,

  • Jay Wartell Mar 30, 2015

    Thanks for response. Where do I look for the temp controls that are disk shaped and have leads attached?

  • Jorge Rendon
    Jorge Rendon Mar 30, 2015

    I beg to differ as u said coils are ok? how did u test them? only for continuity? when it comes to the coils just getting a reading of ohms is not enough. You have to actually measure the amount or level of resistance or OHMS Im thinking bout 12000 ohms if u get less u will have what ur getting , the flame will continue to go off and on as the current is not staying consistant from the coils.

  • Jay Wartell Mar 31, 2015

    Jhonny Rendon: Thanks for chiming in. I applied AC to the coils separately, 2 terminal coil seemed OK, 3 terminal coil buzzed, I assume bad. After cleaning inside of dryer of 11 yrs of lint, dirt etc. the flame didn't go on at all. I checked out continuity of ignitor, radiant sensor switch, and what looks like a Tstat on the burner tube side next to rt. side cab. panel( kind of opposite the radiation sensor ). Part isn't identified in my Kenmore parts diagram. Anyone know what this is and part no.?

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Flame keeps going out after 5-10 seconds


Gas Dryer no heat: or shuts down soon after heating CHECK:

Thermal Fuse
If the air flow in the dryer is restricted, the temperature in the heating chamber can get hot enough to blow the thermal fuse. If the fuse blows, it cuts power to the coils that control the gas valve. The fuse is usually mounted to the exhaust duct just inside the back panel. You can check its continuity with an ohmmeter. If, after disconnecting the fuse, you get any reading other than 0 when you touch the leads of the meter to its terminals, it has blown. There's no way to restore it -- you'll have to install a replacement.

Igniter and Gas Valve Coils
TEST with a multi meter: The igniter is an electric conductor that works like the element in an electric heater, glowing hot enough to ignite gas when you turn on the dryer. This conductor can burn out, and when it does, it may glow, but it won't get hot enough to ignite the gas. At times it may give a reading of continuity yet fail mechanically and not get hot enough to ignite flame though it gets hot and glows and even may show Ohms or continuity ( close circuit) ?

Occasionally, the Gas safety valve and the electric coils that control the gas valve are defective -- they can wear out when the dryer gets old. When this happens, the igniter glows, but gas never enters the heating chamber or does not stay consistant.
Performing a continuity test on either part will help you determine whether or not you need to replace it. But the coils should also be tested for amount of resistance as well as Ohms. As they may be showing ohms yet not putting out enough resistance to keep proper gas pressure flowing. Most coils should show at least 1300 ohms ( GIVE OR TAKE 150 OHMS). Anything significantly less Thus u get an ignition but then it soon goes back out. The flame does not stay lit.

Air Flow and Heat
The motor that drives the tumbler also drives a fan that circulates air through the heating chamber and the tumbler and expels it through the vent. If the air can't circulate, perhaps because of lint blockage, the heating chamber overheats, which prompts the cycling thermostat to turn off the gas. The thermostat resets when the chamber cools, but the chamber heats up quickly and the thermostat again shuts off the gas. The result is that the temperature in the tumbler doesn't stay hot, and your clothes take longer to dry, if they get dry at all.

Warning
There's a big difference between a dryer that doesn't heat up at all and one that just doesn't get hot enough to dry your clothes. In the first instance, the problem is usually a defective part, and things should be back to normal after you replace it. In the second instance, the problem is caused by restricted air flow, and you need to clear the lint filter and vents and take steps to prevent lint build-up. If you don't, you'll use more energy for drying than you need and the dryer may continue to malfunction. Worse, you may have a dryer fire.

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Aug 18, 2014 | Dryers

1 Answer

Sg7800 maytag dryer stopped giving heat


Sounds like burner not igniting. On front of dryer in the lower right there should be a gas valve/burner access panel. Usually you just have to pry out at bottom of panel & swing out and up to remove. This gives you access to valve coils and igniter. With panel removed set timer for heated dry and start dryer, observing first the igniter which should glow bright orange-red, then after a couple seconds you should hear a "Click" which is gas valve opening and a blue flame ignites for heat. If no glow is seen after a few seconds or at least a minute, igniter is bad, if it does glow and no click is heard from the gas valve, the coils (electro magnets) on the valve are bad, or the "Flame present" sensor is bad. Chances are it's either the coils or igniter.Try this on all heat settings, if you get heat at only one setting it might be in timer contacts, but not common. Again you can repair/replace both the igniter (usually just plugs into a receptical) and the coils (2 donut looking objects on the gas valve, replace both.) Access door may be on back if not on front, but normally their on lower right of front.

Feb 13, 2011 | Dryers

1 Answer

The dryer has no heat when turned on.


Check your coils & igniter. Access door usually located in lower right front of dryer. Remove (pry up & out from bottom of panel, if no screws, exposing burner assembly. Set dryer for heated dry and start, you should see the igniter glow bright orange (give it at least a minute) followed by a CLICK sound,(again, a few seconds) this is the coils opening the gas valve, followed by a blue flame for heat. If no glow, replace igniter. If igniter glows bright and no click, replace the coils.

Feb 13, 2011 | Dryers

1 Answer

Frigidaire crown gas dryer runs fine but after about 10 minutes it turns itself off and i cant turn it back on for about an hour


From the description you give the most likely cause of this problem are bad gas coils or a bad gas valve.

You say you see the flames for 10 minutes before it stops heating but you don't mention if the igniter is continuing to glow. One thing we need to know is if the igniter continues to cycle on and off when the dryer stops heating.

There is a small square plug on the front panel you can remove to try and visually check if the igniter is glowing.

The problem won't be the thermal fuse or one of the thermostats. Once the fuse is open the dryer won't heat but it won't start to heat after 20 minutes.

After the dryer runs ten minutes and stops heating then check if the igniter is still cycling on and off. This is important because if the igniter is working then the thermostats and igniter are okay.

When the igniter glows at some point you might hear a click and the igniter would stop glowing. The click is from the flame sensor and after the click and the voltage is removed from the igniter at the same instant the voltage is applied to the gas coils and you should get a flame.

You might hear a hum, buzz or vibration from the coils when this happens. If the coils seem to react to the voltage but there is no flame then most likely the gas valve is bad. If the coils don't do anything then most likely the coils are the problem. The gas valve and gas coils can work for 10-15 minutes and then heat up and stop working till everything cools down.

One other thing I must tell you about the gas coils. Here is a link to the gas coils you will need. These are the new style that will last quite a bit longer the the older one. The coils are like the spark plugs in your car. The will need replacing in time due to wear. Below is a video to walk you thru the repair process.


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Jan 09, 2011 | Frigidaire GLGR642A Gas Dryer

1 Answer

N.Gas burners ignites, achieves a blue flame, the 'strength' of the flame seems to be big/strong/adequate, but then stops after a few minutes and dryer keeps spinning. Have removed and cleaned flex...


Hi, thanks for using fixya.com. I suspect your gas coils are intermittently faulty. This is a VERY common problem and is easily remedied by replacing the coils. They are available at http://aplusapplianceparts.com/searchquick-submit.sc?keywords=279834 and using coupon code 1050 will get you a discount on the part. They are accessed by removing the front panel and are easily replaced wiith limited tools and expertise.

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1 Answer

How do you relight the pilot on a kenmore 80 series gas dryer?


Their is no pilot light. The system uses a glowbarce9a48b.jpgOPERATION
The newer dryers use a silicone carbide ignitor for ignition. If the Fuse is ok482c508.jpg the gas assembly gets power from the control thermostatfa8083a.jpg. The flame sensor allows the ignitor to go cat go. The coils themselves10e9e78.jpg cannot open the gas because the ignitor is using a lot of power. When flame detectc5ddc7a.jpg gets warm enough then it shuts down the ignitor and power is redirected on the other side of the 3 prong coil. The ignitor is not finished. It now is hot enough to act as a path to the secondary coil which energizes and sends that raw gas to the 1800f screaming hot ignitor. Igniton occurs and keeps the ignitor hot. If ignition at this point were to fail the ignitor would cool down and shut off the power to the secondary coil. Clever ain't it? So what can go wrong? Worn out flame sensor takes longer to reset, ignitor open. Clogged vent012c9c0.jpg overheat fuse blown, bad thermostat, and faulty solenoids.If all is good it should continually shut on and off all during the cycle to regulate the heat

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1 Answer

My Rheem Ruud 25M01A water heater flame goes out before the thermostat is satisfied. The igniter goes into a ignition sequence from here on trying to get the flame to ignite for ever. If i turn the unit...


Check the air lines going to air pressure switch for cracks or splits. I know that will affect the gas valve but not sure if that is your problem.

May 07, 2010 | Heating & Cooling

1 Answer

Dryer tumbles continuously but does not dry. When


Check the following areas to combat this issue. the most common problem spot will be a blown Thermal fuse, but in your case, i would pay close attention to the gas valve coils.


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.

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1 Answer

Gas Dryer Problem


I would change both coils anyways,they can go bad after they heat up.

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