How to Troubleshoot & Replace Samsung AP4201894 / DC47-00016A Dryer Thermostat

Ordered the Thermal Fuse and Dryer Thermistor. Then found a Youtube video explaining how to take the samsung dryer apart. This included removing the actual drum. The parts were located in front left corner (by the lint trap). It was vary easy to replace and saved us a ton of money. 

The dryer panel would turn on like normal. You could hear the relay make contact when you push the start button but the motor would not run. Found both the Dryer Thermistor and Thermal Fuse to be bad. The thermal fuse is simple to check if you have a voltmeter that checks continuity. Even if you don't think the Thermistor is bad, I would recommend replacing it. It's an inexpensive part. I also cleaned out the entire dryer and vent from lint. These parts usually go bad due to overheating from lack of air circulation. It took a total of 10 minutes to take the top lid and back access panel off, then another 5 to remove and test the parts. Replacing parts and putting it all together took about 20 minutes. Total job time of 50 minutes (cleaning vent and dryer included) and saved a lot of money by not having a technician come out. 

Yes. Since I was replacing the heating element I decided to replace the fuses and thermostat. I ordered and installed the parts I purchased from Appliance Parts Pros and the dryer works great. 

When starting my dryer the motor would power up and rotoe the drum and blower. Afetr about 20-30 seconds the igniter would come on then the gas valve would open and I would get heat for about 6 or 7 seconds then it would shut off. I know the burner is suppoed to cycle on and off but once the burner shut off it would not come bqack on unless I shut the dryer off and then back on. I checked for continuity on the thermistor, the thermal fuse and the high temp sensor. All three of them appeared to be ok. I ordered a new thermal fuse and high temp sensor thinking that one of them may be intermittent. Not sure which one fixed the problem but the dryer is functioning normally again. 

Initially I had a bad heating element. I changed the element and then I found the dryer was heating on the air fluff setting. I changed out the thermostats and therm fuse, and found I had a stuck shut contact on the control board. Changed it out and it runs great now. 

Replaced Thermistor, Thermal Fuse, and Moisture sensor. Followed the videos. Very easy to do. Not sure which part was broken, but I'm just glad it works fine now. Instead of having someone come out and paying hundreds of dollars, it took me an hour and $50. thanks APP! 

Replace thermostat. Replaced all sensors just to update all components in the dryer. 

Replaced the following parts but did not fix the problem: -Thermister -Thermal fuse -Radiant sensor -Ignitor -Therm The problem was the Centrifugal switch. Took the switch apart and use fine grid sand paper to clean the contacts. Put it back and working. 

Staff very helpful ,,,,,,, while I did find a broken heater. Cleaning the dryer with compressed air fixed the issue. Moisture Sensor Dryer Thermistor do not like a covering of Dust no electrical likes a layer of dust when its trying to sense. This condition was hard to find anything on internet which is why I'm commenting. Slow count down was due to Dual Dryer Elements and one was broken. The NO count down was due to covering of Dust all over all Sensors. Yes I bought 2 new sensors while dryer disassembled and consider down time the additional $20 well spent 

I took the front of the dryer off, pulled out the tumbler and checked the checked the thermistor on the dryer vent. It had a thick layer of lint on it. So I cleaned it up and the entire dry vent including the blower wheel, then closed it back up. Well it did not work. So I ordered a new thermistor and a new thermal fuse (thermistat 1), as it sits right next to it might as well replace it too since I'm already there. They are known to go bad, so for the price just replace it and knock them both out just in case. After replacing, dryer turned on like normal. Instant fix. Watch the video on how to take the dryer apart, its real easy. Just remember how the belt goes on. Its easy, took a little longer at first cause I cleaned out the entire dryer vent while I was there.