Maytag Neptune MDG300aww Gas Dryer Heats On and Off

not sure but sounds like something wrong with ur sensor? as soon as clothes are placed in the moister is sensed by sensor but trips it?

SOUNDS LIKE A BAD MOISTER SENSOR

if it heats for the first 15 to 30 minutes and then no heat you have bad gas coils,when the coils are starting to fail they will work like normal until they heat up and then they fail,they will work again when they cool down and then fail again when heated up.unplug the dryer and remove the two phillips screws that hold the door on and remove the door.also remove the two screws opposite the door screws and grab the right and left part of the frame and pull it forwards to remove it.you'll see the gas valve and the two coils are on top of it.just remove the two phillips screws,remove the cover and change out the coils,do them one at a time because they are different,one has three prongs and the other has two.while you have the dryer open vac it out,if you have a shop vac you can blow the lint from the back to the front and vac it out,also blow off the motor,alot of lint gets stuck in the motor.clean out the duct that the lint filter slides into and if you have a long vent line,remove it from the back of the dryer and blow it out with a leaf blower,you have an open flame in there and i've seen them catch fire,also if you do this once a year you'll never have any problems with the dryer and your clothes will dry on time,let me know how you make out and good luck.

Hi,
Believe it or not your ignitor is going bad...

If you have a gas dryer.
The most common problem with a gas and no heat is the ignitor going bad...

Here is a tip that I wrote about that problem...

Gas Dryer not Working Gas Dryer Not Heating
http://www.fixya.com/support/r4398592-gas_dryer_not_working_gas_dryer_not

If your dryer is electric..
There could be a number of different problems...
Check out this tip that I wrote about this problem...

Dryer Troubleshooting Electric Dryer won t Heat
http://www.fixya.com/support/r3866345-dryer_troubleshooting_electric_dryer_won

heatman101

usually the coils on the gas valve are going out

check the exhaust tube for obstructions

how do i set this dryer to dry my clothes??? what is the right setting?? should i use the time dry setting or the more dry/less dry setting?? Clothes never dry???????????????????????????????????????????????????????

your dryer has a safety feature that it will not run or heat when the door is opened. It is so no gas fumes are exhauseted into your home. Once the safety is engaged, It will not allow the dryer to restart for a short while. It should clear itself after only a few minutes. Hope this helps, good luck.

Q - My gas dryer will not heat, what could stop my dryer from heating?
A - Things that could stop a gas dryer from heating:
- glow bar igniter, thermal fuse ( not all models ), coils on the gas valve, gas valve, thermostats,motor heat switch, timer, selector switch, sensor.
A page for checking gas dryers is here.

Check in the hole where the screen goes for blockage. Many times debries falls in there when removing screen. It cant make it out of the vent so it builds up and clogs the vent.