How to Troubleshoot & Replace Samsung AP4201898 / DC47-00018A Dryer High Limit Thermostat

Got on your website and noticed a very informative video on heating elements and generally how often they need to be replaced and the probably causes of why my dryer would not heat up and dry the clothes. Very informative and an easy fix. Just needed a screwdriver with some general sense of how things are put together. Would've preferred faster shipping service of the new heating element that I bought from your company, but all in all, it was a great experience. 

I am thrilled with your company. The part showed up under 2 days and the repair video on Utube was perfect. I watched video as I was replacing thermostat and everything when like clock work. I will use your company for all my appliance repairs and tell all my friends and family to do the same. Thank you. 

First time replaced heating coil only. Stopped heating again after 2-3 days. Found thermal fuse on side of heater unit burned up. Replacement heater coil still good. This time replaced thermistor as well as thermostat and thermal fuse. So far so good. 

Replaced the heating element, Thermal Fuse and High Limit Thermostat. 

I removed the heating element assembly that consisted of the heating coils/element, a Thermostat and Thermal fuse. I put a multimeter on all 3 to check for continuity, this would tell me which part needed replaced. The coil/element was good, however the Thermostat was bad. In addition the Thermostat had signal continuity, but a low Ohms reading. I ordered both the Thermostat & Thermal fuse to replace. I ordered the Parts on a Friday and they arrived on the following Monday. Reassembled the dryer & runs fine. The complete heating assembly runs $150-$170. By identifying the correct parts to replace it only ran me $64 (and that included shipping). I will definitely becoming back to Appliance Parts Pros in the future. 

We decided to order all 4 replacement parts for our dryer and just replace them all. Glad we did works like brand new. 

Replaced the heating element, as most forums suggested, no help. Replaced the circuit board, thermostat and thermal fuse and it works great, pretty much the main components of the heating side, so it should be fine for a while. 

Replaced thermal sensor. 

I looked on You Tube for help. AppliancePartsPros was by far the most helpful with easy to understand repair videos. It looked, to me, to be a faulty thermostat or fuse. The best part of the entire fix was the help I got when I called Appliance Pros. They too thought I was correct but suggested I get the entire heater assembly just in case. I asked if I could return any thing I didn't use and they said "sure". Using their You Tube video, it was easy to get to the heater assembly. I replaced it, assembled the dryer and I was back in business. I was curious about the old heater assembly and took it apart. Sure enough the heating coil was separated. Had I not gotten the good the advice I would have had to order it and my wife would have been very upset, as it is, she has been extra special to me after I fixed it. 

As suggested by the site, the most likely culprit was a burnt out heating element. I did confirm that my circuit breakers were intact on the 240V line. But because I had to head out of town before I could fully debug, I ordered a heating element, fuse, and thermostat just in case, knowing that AppliancePartPros has their excellent return policy. When I returned home I opened the dryer and had the heater portion out within 10min. And sure enough, a digital multimeter quickly confirmed non-continuity in the element itself. It was a quick replacement, with the hardest part being flattening out the retainer tabs on the heating element terminals (and bending the new ones) -- you need a pretty thin set of needle nose pliers. Once replaced and tucked back in, the dryer was good as new! Now off to return the fuse and thermostat that I ended up not needing -- thanks AppliancePartPros!