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Whirlpool gas dryer blows cold air. took back panel off cleaned lint out. Took front cover off, turned dryer on gas igniter does not heat up, or glow model # lgr4634jq0

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  • Dryers Master
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Hi, If you are having problems with your gas dryer not heatingthe most common problem is that the ignitor goes bad. Even though it glowssometimes 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 differentthings that can go wrong causing the dryer not to heat. check out this electric no heat tip...

heatman101

Posted on Oct 09, 2010

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Posted on Jan 02, 2017

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Whirlpool Cabrio gas dryer does not heat. About every 1 minute it makes a low screeching sound for about 20 seconds. It spins fine but just cool air. I already removed the rear panel and completely...


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 22, 2015 | Whirlpool Dryers

1 Answer

Our Whirlpool Model LGR4634JQ0 will not heat up. I took the peep hole cover off and watched as I turned the gas dryer on (high heat). The chamber heats up and glows bright orange for maybe 15-20 seconds...


You're a good detective! Gas dryers have an ignition panel (what you saw glowing bright orange) that heats until it reaches a certain temperature. This temperature will cause the gas from the pilot to ignite and the dryer will run, staying at a constant temperature and thereby drying your clothes. It sounds as it your ignition panel needs to be replaced. It is a relatively simple process if you are comfortable making repairs. If you aren't, I suggest calling a repair professional. We did this a num ber of years ago. The repair service was reasonably priced and our dryer worked for another 6 years!
Good luck. If this works, please return to Fixya and rate my advice!

Jul 31, 2011 | Whirlpool LGR4634J Gas Dryer

1 Answer

Dryer doesnt blow hot air.


I find that quite often the ignitor is out of alignment or the glass window is covered with lint.
a gas dryer blows air through a burner assembly to heat the air. The burner assembly consists essentially of a gas valve, ignitor and a flame sensor. If any part of the burner assembly malfunctions, the result will be low or no heat and slow drying of the clothes.
There are two common styles of ignitors, glow ignitors and spark ignitors. The ignitor ignites the gas either by heating up and glowing, or by sparking. If the ignitor fails, the dryer will not heat.

The easiest way to check the ignitor is to observe it. Remove the small access panel in front, select a high temperature setting and start the dryer. Watch the burner assembly, shortly after starting the dryer the ignitor should begin to glow or spark. If you see it glow or spark, then the ignitor is working.

Aug 19, 2009 | Kenmore Dryers

1 Answer

No heat, blowing cold air


Hi, You will need to change the coils. They get weak later in cycle and will not open the valve.
Does the moise accur when the gas ignites in the first part of the dry cycle. It is possible the gas valve is starting to go bad but, it is not very common.
Here is how to change the coils:
UNPLUG the dryer. This model you need to remove the two screws under the lint screen. Now use a flat blade screw drive and insert it in the gap between the top and the front panel and pry the top up. Now locate and remove the screws on the inside of the front panel in upper corners. The front should lift off. You will see the two black coils on the gas valve. When you remove the three wire coil, make sure the sleeve inside it gets put back on the post the coils slides onto.
If I can assist you further, please let me know.

Thanks
Vic

Jul 10, 2009 | Whirlpool LGR5636L Gas Dryer

1 Answer

No heat


Should be a cover about the size of a quarter on the front lleft bottom...pop off with a small screwdriver and start dryer....look inside and see if the glow bar lights up...if glow bright orange, probably good, may need gas solenoids or ignitor

Jun 10, 2009 | Whirlpool LGB6300 Gas Dryer

1 Answer

No heat in dryer


If your dryer doesn't heat, check these:
Igniter Modern gas dryers use an electric igniter to ignite the gas from the gas valve. When it's working properly, the igniter glows bright orange. When it burns out, the dryer tumbles but there's no heat because the gas can't ignite. When the igniter burns out, you need to replace it. If the igniter is held by a tension bracket, you very well may need to replace the bracket too.

The igniter is inside the dryer housing, near the bottom front, usually in a cone-shaped metal tube (the force cone). It's about 2 inches long. It's mounted to the far end of the burner tube, and it has two wires attached to it--or to the tension bracket, if there is one.

Gas valve coils Watch the igniter. Does it glow bright orange, then shut off without igniting the gas? (When the gas ignites there's a large blue flame.) If so, there may be defective coils on the gas valve. Mounted on the top of modern gas valves, there are black electrical coils. The coils, when energized, open the gas valve. If one or more of the coils are defective, the valve doesn't open and the gas cannot ignite. Because it's often difficult to properly test the coils, it's usually best to replace both (all) of them at the same time.

Thermal fuse On many dryers, there's a thermal fuse (a heat-sensitive fuse that blows if the dryer overheats) mounted to the exhaust duct inside the back cover panel. The fuse is about an inch long. It's usually embedded in black resin and mounted in a white plastic housing.

If the fuse has blown, it has no continuity. When this happens, your dryer either just stops heating, or it doesn't work at all. Be sure to inspect the venting/heating system before replacing the fuse to put the dryer back into operation. (You can't re-set this type of fuse.)

May 11, 2009 | Dryers

6 Answers

Whirlpool Gold Ultimate Care II: No heat


didc, on a gas dryer, if the thermal fuse blows it will still rotate, but will not heat. Since this is a gas dryer, see if the ignitor is glowing. If it is, then you know the thermal fuse is good. If not, the thermal fuse may be blown or the ignitor itself and thus the reason for no heat. Catriver.7152136.jpg

Jan 01, 2008 | Whirlpool GGQ8831L Gas Dryer

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