Question about Dryers

1 Answer

Won't Heat -Maytag Gas Dryer Model MD-4 Intellidryer

It's not heating up - could be cycling thermo, druer temp switch or radiant sensor? In using my ohm meter do I need the elecrticity on to check the continuity? Which one should I check first?
I've got access to the switches and just need experienced advice before proceeding. Thanks

Posted by on

  • Anonymous Feb 21, 2008

    My 4 year old Maytag Duet dryer won't heat up. Takes at least 5 cycles of air drying to get one load dried.



    Damp in Illinois

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 3 Answers

Once I paid my gas bill--mine started working normally again.

Posted on Feb 02, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

No dryer heat


If the coils are bad the unit will light with flame for 4 - 8 times then all of a sudden the ignitor will glow, kick off with no gas coming threw valve. it sounds like the high limit thermostat is short cycling the flame. This is the thermostat that sits on top of the burner chamber. remove 1 screw from the thermostat and blend it upwards away from the heat. Then plug unit back in and test to see if the flame stays on longer. Click here to see maytag dryer no heat posts. Contact me anytime here. Hope this helps..

May 20, 2013 | Maytag Neptune MDG6700A Gas Dryer

1 Answer

I have a gas dryer, model MDG7657AWW that will not stay heated. Every time I put it on, the flame comes on for about 21 seconds & then shuts off. I replaced the igniter, hi limit thermostat, cycling t


On a gas dryer the heat normally only comes on for 30 seconds or until the drum temp reaches 160f at which time the flame is shut down by the cycling thermostat. The drum temp then starts to drop. When the drum temp reaches 105f then another blast of heat is issued for 30 more seconds.That is how they work. Put it all back together and trow a load in there.
themobilian_3090.jpg

Oct 28, 2011 | Dryers

1 Answer

Propain gass dyer. runs but very little heat. replaced gas valve coils and no change. Now I believe I have to check limit switches, but not sure how to test..What about the RADIANT SENSOR? NEED...


Hi.

More than limit switches if burner is turning on but heating is poor you should check cycling themostat and then blower motor, lint filter and parts comprised in blower assembly.

When the problem is the high limit, there is no heat at all.
When the problem is radiant sensor, there is no heat at all.

Poor heating means either: defective cycling thermostat; clogged air ducts; defective blower system, problem with timer or temperature selector.

If the heating turns off in the middle of the cycle check also door switch.

Here Cycling thermostat:


10_22_2011_10_57_23_am.gif

The cycling thermostat is located in the blower assembly. Here removal instructions. Disconnect power first:

10_22_2011_11_00_07_am.gif

The thermostat can be tested using a multimeter. Set the multimeter on impedance (Ohms). Good thermostat will read about Ohms at room and will read open (infinity) at 150F.

Once in there also check the thermal fuse and check blower assembly. Remove lint and make sure blower is working. Thermal fuse is tested reading impedance across its two contacts. Remove fuse from circuit and touch with multimeter probes fuse's contacts (same for thermostat). If fuse is good it will read zero Ohms or very little impedance. a bad fuse reads infinity.

Check also the exhaust. Make sure there is no blockage.

Operations are illustrated from page 72 of service manual: Here the service manual.


10_22_2011_11_09_36_am.gif

About the flame sensor, that is a part that rarely fails. If the dryer ignites the radiant sensor is not responsible for the fault.
The radiant sensor is mounted in parallel with the coil.



When temperature is reached the sensor opens up allowing power to burner valve (valve 2). Testing the flame sensor like a thermostat is difficult because it opens up at high temp. I read volts while operating. I suggest users carrying only maintenance that can be performed with power off.

10_22_2011_11_18_01_am.gif

If the burner shuts down at random more than the sensor check the door switch. Run a cycle with door switch contacts jumped.

Start checking cycling thermostat and air ducts, those are problems that usually cause low heating.

Regards.

Ginko

Oct 21, 2011 | Maytag Neptune MDG5500AW Gas Dryer

1 Answer

I have a kenmore gas dryer, the drum turns but no heat, I replaced the radiant sensor and the control thermostat but still no heat?


here is a partial list of componets that could cause the dryer to not heat
Ignitor
control t-stat
high limit t-stat
gas valve coils
thermal cutoff
thermal fuse
flame sensor
electronic control/or timer depending on your exact model
cycling t-stat
motor

Jul 23, 2011 | Dryers

1 Answer

The igniter glows then turns off, no gas ignition


This sounds like the dryer coils have failed. They tend to fail as they heat up. Could also be the radiant heat sensor. Both are inexpensive and easy to replace. This link will walk you thru troubleshooting this it may be a different model but the process will be the same http://appliancehelponline.com/gdryertroublevideo.html

Jun 28, 2010 | Maytag Neptune MDG5500AW Gas Dryer

1 Answer

My gas maytag dryer has no heat


first check the thermal fuse for continuity in the dryer blower housing/vent,then check the high-limit and/or cycling thermostats and the radiant sensor(flame eye) on the burner tube of the unit,then check the ignitor in the burner tube housing and finally the boost and secondary gas valve solenoid coils on the gas valve body inside the unit near the front entry of burner tube

Apr 29, 2010 | Maytag Neptune MDG5500AW Gas Dryer

1 Answer

I have a maytag gas dryer model no# ldg7314aae.The dryer runs but there is no heat. the dryer vent was cleaned as well as the interior of lint and still no heat.I was wondering where to start as far as...


your thermal fuse near the dryer vent opening or blower housing inside the unit,this is a one-shot fuse when it burns out you can't reset it,you need to replace it,then the radiant sensor(senses the flame),high-limit and cycling thermostats located on the burner tube on the dryer,then the boost and secondary gas valve coils located on the units gas valve body near the gas inlet to the burner tube

Apr 27, 2010 | Dryers

1 Answer

Maytag Gas Dryer doesn't heat up


The igniter is the part that ignites the gas in the Maytag gas dryer. Long time a go the dryers use to have a pilots. The pilots where on all the time, even when the dryer was not been use.

This wasted a lot of gas and a new design was needed. That is when the igniter or glow bar as is also known, came to be. A bad igniter could be the reason for your Maytag gas dryer not heating.




The radiant sensor is a small black box that attaches to the combustion funnel. The job of the radiant sensor is to allow the igniter to glow until it is real hot, then it shuts the igniter off and opens the gas valve to start the heating process. A bad radiant sensor could the the reason for your Maytag gas dryer not heating.




The gas valve has two coils or solenoids. These coils job is to open the gas chambers inside of the gas valve.

When one of the coils goes bad, the symptom is that the igniter glows, but the gas valve won't open to let the gas flow through the gas chamber to be ignited.

A bad set of coils could be the reason for your Maytag gas dryer not heating.




The hi-limit thermostat is located on top of the combustion funnel, and its job is to open the circuit to the gas valve if the airflow to the dryer is restricted for any reason.




The cycling thermostat is use to control the temperature inside of the dryer. It is factory preset at 155 degree, in other words it will open the circuit to the gas valve when the temperature reaches 155 degrees.

This thermostat is opening and closing all the time the dryer running. A bad cycling thermostat could be the reason for your Maytag gas dryer not heating.




The timer is the part that direct the electricity to the other parts in the dryer. This part works very hard and the contacts wear out and some times they burn out. If the timer contacts won't close, the dryer will not heat.




The motor switch is another safety device that only closes the heating circuit when the motor is running. When the motor is not running the circuit of the gas valve is open and the dryer will not heat. A bad motor switch could be the cause for your Maytag gas dryer not heating.

As you could see, there are a lot of parts inside of the dryer that have to be in good working condition for the dryer to produce heat.

May 27, 2009 | Maytag Dryers

1 Answer

Maytag MDG5500 - heat goes off after several minutes


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.

Mar 07, 2009 | Maytag Neptune MDG5500AW Gas Dryer

2 Answers

Maytag dryer not heating


Many gas appliances have safety devices that all need to be functional or you will not be sucessfull in passing fuel to the burner assembly.
There are 2 or 3 electrically controled coils on the gas valve (electromagnetic), these lift a pin in the control and gas flows as requested, these can fail and are realatively inexpensive and easy to replace, $4-25 depending on how many and where purchased.
Other sensors are 2-limit thermostats, radiant sensor, heat sensors, motor temp sensor, humidity sensor, switches (door etc.) all must function in the system to allow correct performance, lastly control panel, also most problems involve cleanlyness of the entire system and all associted exhaust piping.
There are no appliances that are free from maintanance so all require inspections and regular cleanings.

Dec 28, 2008 | Maytag Neptune MDG5500AW Gas Dryer

Not finding what you are looking for?
Dryers Logo

Related Topics:

152 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dryers Experts

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Tim Whalen

Level 3 Expert

3056 Answers

Richard Roth
Richard Roth

Level 3 Expert

9472 Answers

Are you a Dryer Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...