Question about Maytag Neptune MDG5500AW Gas Dryer

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My igniter comes on and sometimes it flames up and sometimes it does not. I cleaned the Radiant sensor lense too.

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The problem is the dryer coils have failed. They tend to fail as they heat up.These are inexpensive and easy to replace. There is a video at http://appliancehelponline.com/gdryertroublevideo.html that will walk you thru this. Different model but the procedure is the same. All parts come with installation instructions. If you need a diagram or illustration you can also get them there, just enter your model #.

Posted on Jun 02, 2010

Testimonial: "Thank you very much. I will replace the coils. I had almost decided that the coils were bad because they were getting so warm, actually hot that I could barely touch them. Thanks again."

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My York furnace sometimes doesn't completely ignite


A noisy inducer probably is headed for replacement.

The igniter can produce a healthy glow and still be defective. Mine had to be replaced with a new, improved one.

The thermocouple could be defective even though it seems to open the gas valve when it should.

The heat sensor in the bonnet could be defective. That controls main blower operation.

The heat exchanger could be cracked.

Jan 10, 2014 | Heating & Cooling

1 Answer

Kenmore Elite He3 gas dryer (110-92832100) not heating. Igniter glows red for a min or so, drum spins, hear a loud 'buzzing' noise....


The problem could be flame radiant sensor or in most cases the gas valve solenoid coils sitting on top of the gas valves. The radiant sensor must be aligned perfectly with the igniter. The radiant sensor contacts bypasses one of the gas valve solenoid coils and as the igniter heats up it makes the sensor contact trips unbypassing the coil and allowing the gas to flow and be ignited.

The problem is with the solenoid coils,
one with 2-prongs and the other has 3, if the radiant sensor is aligned with igniter and working perfectly but no gas is ignited. The buzzing sound is coming from the coils trying to operate the valves. Replacing both coils is the simple and only viable solution.

Jul 18, 2011 | Kenmore Elite HE4 Electric Dryer

1 Answer

I have a 7yo Kenmore Elite gas dryer w/no heat. I tested all the possible culprits with my ohmmeter. I found the ignitor was not glowing so I replaced it. Now it glows but I still have no heat


The glowing if the ignitor indicates that the circuitry is good but the flame/radiant sensor is bad and/or one or both of the gas valve solenoid coils are not working. The flame/radiant sensor bypasses one the solenoid coils then when power is applied to the ignition circuit, the first coil opens the first valve, the ignitor glows and the flame/radiant sensor gets heated. It's contacts then opens when heated enough to unbypass the second coil and allow the gas to flow and be ignited.

Make sure the flame/radiant sensor is properly in place and aligned with the ignitor to allow proper heat sensing. You may check the continuity between the sensor's contact terminals as the ignitor glows. At first, the terminals should read close (zero resistance) and then open (infinite resistance) after about 30 seconds or so. If this is not the case, the sensor is not working and must be replaced.

The solenoid coils, one with 2 prongs and the other has 3, sitting on top of the gas valves must be both replaced if the flame/radiant sensor turns out good. But before doing so, make sure to run a test with the dryer completely assembled because sometimes the gas do not ignite when the dryer's cabinet is open. This is to prevent unnecessary replacement of the coils.

Feel free to update us about the result and if you need further advice.

Jun 17, 2011 | Kenmore Dryers

1 Answer

Unit seems to ignite then cuts out, then blower comes on. Sometimes goes through that sequence and then no blower, does that 2-3 times then light on thermostat saying heater is on stays on but unit does...


If this has an igniter could be flame sensor. Flame sensor tells gas valve that flame is present or it will kick out. Flame sensor should be small rod connected to one wire, and it is on the flame somewhere sometimes opposite end from igniter If you do have sensor turn power off remove sensor and clean If white film on it. I usually clean it with dollar bill

Jan 21, 2011 | Heating & Cooling

1 Answer

The igniter wasnt igniting.. i changed it. it ignites and gets hot for a few seconds then goes out. may have put the thing back together wrong. help


The problem is either the flame sensor or dryer coils. First check the flame sensor also called the radiant heat sensor for continuity. If it has none replace it. If it does have continuity the dryer coils need replacing. They are easy to check and replace. Here are a few links that should help

Replacing the dryer coils

Flame sensor replacement

Troubleshooting a gas dryer

Oct 22, 2010 | Dryers

1 Answer

My drying is blow cold air intead of hot to dry the clothes . what can the problem be


Components:

Igniter: Line voltage brings the igniter temp to about 2200 degrees F in 30 seconds.
Radiant Sensor: Works like a thermostat, normally closed, opens when sensing the heat from the igniter or burner flame.
When cold the radiant sensor contacts are closed and circuit is completed to the igniter. When the igniter heats up, the radiant sensor senses the heat and the contacts open, breaking the circuit to the igniter.
Gas Valve: The gas valve is 2 valve gas valves in series. This is for added safety in case one of the valves fails to seat properly.
Valve 1 (the closest to the supply pipe) has a split coil solenoid (2 coils, 1 solenoid and armature). The upper is the holding coil and the lower is the booster coil. The power of both coils is required to lift the armature. Once the armature is up only the holding coil is required to keep it up.
The second valve has only one coil and is called the secondary coil.

Operation:

At the beginning of a cycle, the sensor contacts are closed, the igniter is cold and the both gas valves are closed.
(NOTE) The sensor contacts are wired in parallel with the secondary coil so current bypasses the secondary coil. As long as the sensor contacts are closed the valve can not be open unless the valve itself is at fault. However when gas pressure is first applied by turning on the gas ****, a small amount of gas may pass though the vent until the pressure regulator is balanced.
The booster coil and igniter are wired in parallel with each other and wired in series with the sensor and secondary combined. When the sensor contacts are closed full line voltage is available to both the igniter and the booster coil. When the sensor contacts are open current must flow though the secondary to get to the igniter and booster coil and a large voltage drop results across the secondary coil. Even though the parallel booster coil and igniter are still in the circuit they are ineffective due to the reduced voltage available to them.

Call for heat: Power is applied to the circuit.

Step 1: Radiant sensor contacts are closed, the holding coil, booster coil and igniter get full line voltage. The holding coil and booster have enough power to open valve 1 (first click)and the igniter begins to get hot and glow. At this time sine the sensor contacts are closed the secondary coil is bypassed so valve 2 remains closed to prevent gas from leaving the burner.
Step 2: The igniter is getting red hot and gas valve 1 is open. As the igniter gets hot its resistance decreases. At the same time the heat from the igniter causes the radiant sensor contacts to open.
Step 3: Valve 1 is now held open by the holding coil. The sensor contacts are open due to the heat from the igniter. The current paths in the circuit change.
With the sensor contacts open the secondary coil is no longer bypassed and is now in series with the parallel combination of the booster coil and igniter. Because of the low resistance of the hot igniter, most of the line voltage is dropped across the secondary coil. Only a small percentage is dropped across the booster coil and igniter. (Sometimes a small click as the booster drops out).
So the secondary coil now opens valve 2 (click 2) releasing gas across the still red hot igniter and the gas is ignited on contact. While the igniter will cool the tip is still in the flame which is enough to keep the resistance low. At the same time the heat from the burner will keep the radiant sensor contacts open.
It the flame goes out the sensor will cool and the contacts will open bypassing the secondary coil and valve 2 will close. When power is removed from the circuit both valves will close due to gas pressure and spring pressure of the armatures.

Feb 20, 2010 | Dryers

1 Answer

Maytag Neptune MDG5500AWW gas dryer ignites, then flame goes out


The 'radiant sensor/ needs to be replaced. This sensor tells the system that the flame is lit and everything is good. Go to repairclinic.com

http://www.repairclinic.com/SSPartDetail.aspx?s=t-mdg5500aww-%3d%3di2681&PartID=2681

Oct 02, 2009 | Maytag Neptune MDG5500AW Gas Dryer

1 Answer

Replaced igniter and thermal fuse and still no glow from igniter and no heat


could be that you have a bad radiant sensor. or timer? unplug the unit and check continuity across the radiant sensor, you should have continuity. the radiant sensor is attached to the left side of the flame tube. make sure you remove one of the terminals first from it to get a more accurate reading. if that is good you should have one more fuse inside of there it is usually small and round with 2 wires going to it and it is also usually attached to the flame tube. you should have continuity if not this would be your problem. let me know if you have any other questions.

Jun 10, 2009 | Kenmore 74602 Gas Dryer

1 Answer

Whirlpool Gas Dryer


Yes, that is most likely the problem. Once the glow bar igniter glows so hot, the switch opens & drops power to the igniter.(The radiant sensor has continuity while cold & open when a flame is present.) At the same time, by opening it redirects power to the valve coils allowing them to open & gas flow to the burner assembly. The dying glow of the igniter fires the gas. However, if your igniter glows, the radiant sensor is good. In this case, you'd need to replace the gas valve solenoids.

Aug 01, 2007 | Whirlpool LGR5644J Gas Dryer

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