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Gas dryer dries slow

Heats up initially for long enough to get hot inside then cools down, heats up again maybe once then will not again. Pilot comes on but main burner does not light on repeated cycles.
I have replaced the TCO and the radiant sensor. Ducts are clear.

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The coils on the gas valve are faulty. They will work occasionally when cold but will not after they become warm with use. Replace the coils and it will work again. Eric

Posted on Sep 12, 2009

Testimonial: "YUP, changed the coils it works great now. Thanks"

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1 Answer

Whirlpool dryer heating sporadically?


Remove the lower front panel and turn dryer on. The ignitor should glow bright orange first. After Ignitor glows brightly the next thing will be the flame lighting as the gas valve opens with a click. All this should happen within about a minute or so.

If flame comes on but goes off quickly It's likely one of the Gas valve coils is opening a break in the coil as the coil heats up. This coil will shrink when cool and be able to run again. The coils are purchased as a kit.

If ignitor goes off and no flame comes on the coil kit is likely needed because one coil is fully broken inside its case. If flame goes on but shuts off shortly the problem is as described above and the kit is needed.

There is a flame safety assembly on the can above the burner. If the airflow is poor. the flame tip may activate that safety and turn the flame off. Or the flame switch may be open and not allow the flame to come on at all.

The Flame switch can be tested for continuity with an ohmeter but the valves may ONLY show bad with power applied and can not be tested with a meter as they will test good.. Good Luck

Nov 18, 2015 | Whirlpool Dryer. Gas Dryer. 7.0 cu. ft. in...

1 Answer

Dryer Heats on low flame, No mater what setting its on...


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.

Mar 24, 2015 | Kenmore Dryers

1 Answer

Gas dryer heats up runs about 3-5 minutes then quits. Have cleaned all filters, exhaust and sensor with problem continuing


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.

GOD IS GOOD !!!!

Oct 12, 2014 | Bosch Nexxt 500 Plus Dryer

1 Answer

Samsung gas dryer


Nothing to worry about . The problem you had was there was air in the line. Here's how it works. The igniter heats up then the gas valve opens. You had air coming out so it did not light initially . The air was followed by the gas supply but at that point the igniter was already cooling down. When you tried a second time the gas line was purged of all air hence normal operation.
happy drying.
wayne

May 06, 2014 | Dryers

1 Answer

Ge gas dryer heats but doesnt dry


if the flame is lighting you have lint blocking the air flow either in the dryer or in the vent line,also if you have a flame for the first 10 to 20 minutes and then the flame doesn't light you have bad gas coils located on top of the gas valve,when the coils are bad they can work for the first 10 to 20 minutes until the coils get hot and then they fail and you'll see the ignitor glowing orange but no flame,bad gas coils.then when the coils cool down they can work again.hope this helps.you can try removing the vent line from the back of the dryer and see if the flame stays on,if lint is blocking the air from blowing out the flame won't stay lit long enough to dry the clothes.

Dec 01, 2013 | Kenmore 73952 Gas Dryer

2 Answers

I have Maytag dryer with Model No. LDG8424AAE. It


how long have you had dryer....have you ever had dryer cleaned out inside...it could be plugged up...chek airflow,disconnect vent line...feel if you have lot of air...or little....then it might be internal tstats problems.....check all this first.....good luck...

Apr 03, 2010 | Dryers

1 Answer

Gas dryer does not completely dry


Replace the glowbar ignitor and also the gas valve coils.

Aug 18, 2009 | Kenmore Dryers

1 Answer

Heats and runs, but not long enough to dry clothes; then would not turn on and run at all. maybe dryer ''thinks'' clothes are dry?


Hi, After the dryer shuts off, can you restart it right away or does it need to cool down before restarting? If it needs to cool down for a bit, the motor is going bad. If the dryer is running a full cycle but not completely dry, check your venting to the outside and make sure it is clean.
If this is a gas dryer, the coils on top the gas valve might be shutting down early and not reopening later in the heat cycle.
I hope this gives you some direction. Please let me knwo if I can assist you further on this problem

Vic

Jun 13, 2009 | Dryers

1 Answer

Gas dryer intermittently heats.


most likely solenoids after a few firings they tend to open up and not work again until after cool down replace both they usually come in a kit

Sep 14, 2008 | Dryers

1 Answer

Dryer runs-no heat


I had a problem once with a gas dryer that would come on, the pilot would glow and the flame would run on a shortend cycle. The coil that opens the gas valve had a short circuit that would only short out when it heated up. It would drive me crazy since it appeared to be working. The short cycle time the first time, and then maybe not at all once it was warm gave me mixed signals.

May 15, 2008 | Dryers

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