NED7200TW blown thermostat, does not tumble

SOURCE: dryer problem

Your problem may be associated with heavy accumulations of lint inside the dryer and/or ducting. If you have had a water leak recently, and the dryer ducting got wet, the lint could be sticking somewhere and forming a clog. A simple way you can determine if you have a clog somewhere is to disconnect the dryer vent hose from the dryer and start the dryer. The air leaving the dryer should be forceful and about 140 degrees (in other words...good and warm). If the air is weak and cool, you have a clog somehwere INTERNAL to the dryer. If the air is forceful and warm, check your ducting from the dryer to where it exits the house. A dryer needs proper air flow in order to dry properly. The fact that your dryer is getting very hot tells me that the heating element is heating up, but may in fact, be OVERHEATING. The dryer will not continue to run in this condition. Eventually the heating element or thermal fuse will blow. Take the time to perform these simple steps and post back with your results and/or comments. If it is not a simple clog, I can give you further advice on how to determine a cause of your problem.

NOTE: If you plan on cleaning the dryer interior, ensure you unplug the dryer from the power source. Live voltages of 220VAC are still present even with the dryer turned off.

SOURCE: My Amana Model NDG5800AWW dryer

if you are using the auto dry setting and the dryer is still running after 5 hours you either have a timer issue or a thermostat problem.

The timer is driven by a motor, if the timer motor is bad the timer wont time out.

in the auto dry cycle the thermostat has to cycle off and on which then sends power to the timer again advancing the timer.

set the timer in a timed dry cycle for say ten minutes, if the timer advances and turns off then you know the timer works. if it doesnt advance you have a timer motor issue,

if the problem is the auto cycle, you could replace the thermostat, about $20 american. however a clock timer would be cheaper.

Based on how old is your machine and do you want to stick a timer in it after already paying the service man is up to you.

A basic bath towel load should be dry in about 50 minutes, this varies on how good your seals are and how long a vent you are running, if the dryer vent was plugged you already have shortened the life of your heating element.

SOURCE: dryer louder than used to be, does it need service?

The belt may be worn and squealing because it is slipping.  When it warms up it stops slipping.  It will have to be replaced soon. A worn bearing on a support wheel could also cause intermittent noise.

SOURCE: my amana ned7200tw electric dryer turns on but

all there is is a belt that turns the drum,the belt goes on the motor pulley around the pulley and around the drum, check the motor pulley to see if it unattached from motor shaft or check the belt to see if it flipped over somehow,there is a smooth side and a ribbed side on the belt and you said the pulley is fine