Dryer starts but wont stay on

The control relay is bad. Internal contacts are most likely welded together. Replace the relay.

Some dryers have a hi limit safety switch that is a one time fuse type switch . If the dryer gets too hot this switch opens and prevents the heating element from operating it is usually about 1/2" wide x 2" long plastic part with two wires attached to it.
You can test this part with a continuity tester. Unplug dryer, remove wires and test for continuity between the terminals. No continuity means the part needs to be replaced.
Hope this helps.
Bo

motor may need to be replace

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 outthis electric no heat tip...

heatman101

Hi,

If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes 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 different things that can go wrong causing the dryer not to heat.

check out this electric no heat tip...

heatman101

remove the back of dryer and remove the heating element from the heater box,check to see if the wires in the box are touching the heater box walls any where,this would make the element stay on all the time,also check the high temp thermostat on the left side bottom,this is the on off thermo for the heating element-mike

Go here this will help
http://www.applianceaid.com/repair-help.html

its got to be one of the heat sensers

it is the theromstats or heater element has gone the only way to tell is to meter them out u need an expert to do this

replace the element
click the link to get the replacement procedures
http://www.applianceaid.com/wp_element.html
thanks.