Question about Maytag Atlantis MDG7400AW Gas Dryer

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Heat stops after five minutes

Series 80. Gas ignites and burns for five mins. The flames out and only cool air from the exhaust.

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  • 208 Answers

Probably needs a new thermocouple

Posted on Jun 21, 2009

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1 Answer

Burners not burning, pilot light is off. How do I start the pilot light?


There is no pilot on this unit. It is electronic ignition.

On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Mar 29, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Carrier furnace ,burner not staying on after 4th try shuts down completely.cleaned the flame sensor but noticed the 3rd and 4th burner has a delay in lighting by the time the 4th burner lights and hits the...


Remove them and scrub them with a wire brush.
On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remain solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Jan 10, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Hi i have a whirpool gas dryer that all works fine but after about five minutes the heat will stop and it will just blow cool air. I can stop it and restart and everything starts and works fine and after...


The gas valve coils are closing the valve or the flame sensor is defective. The coils are the most common problem.
There are 2 on top of the gas valve. Turn off the gas and power. Remove the front panel by opening the top lid and then remove the screws from inside the front panel in the top right and left corners.

Nov 09, 2009 | Whirlpool Dryers

2 Answers

The exhaust blower starts for about 15 seconds then shuts off. several minutes later, the same thing happens - over and over


goodman furnance the exhaust fan starts, igniter glows hot, all burners lite up & will burn for about a minute and shuts down . I think it senses the room blower does not start so it shuts down.

Oct 20, 2009 | Ruud UBHC Air Conditioner

1 Answer

Gas dryer heat is intermediate


does the igniter glow white or orange? if it is orange you need to replace it. has to be white hot to ignite. if the igniter is white it could be the coils not opening the gas valve all the time - an intermittent problem.

Oct 04, 2009 | Kenmore 73952 Gas Dryer

1 Answer

Gas go's on then shut off


Check the exhaust for good air flow.
Remove the rear exhaust vent and run the dryer.
If that corrects the problem repair the vent blockage.
If it does not correct the problem replace the gas valve coils.

Mar 12, 2009 | Whirlpool Dryers

1 Answer

Kenmore dryer 70 series flame ignites, but goes out after 5 mins


If it's gas, the coil valves get weak and are unable to hold themselves open when hot. First, check the exhaust vent. If it's clogged, it can't remove heat and it will shut off prematurely. Most likely the coil valves though.

Mar 03, 2009 | Kenmore 63942 Dryer

3 Answers

Intermitten Heat up


make sure that your vent is not plug up can you go outside your house and feel good air coming out the vent when the dryer is turn on if so the only other things it could be is the coils that sit on the ignotor assmebly or the high limit termistat is not working properly the coils are little black circle coils that sit in the ignitor assmly should have a metal braket across the top of them holding them in you can check resistance on these coils if you have an meter

Mar 22, 2008 | Kenmore 72802 Gas Dryer

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