David Tapia for Model Number DVE50M7450W/A3 Well, I replaced the heating element, the DC47-00018A thermostat, and the DC47-00016A thermostat. The dryer was heating just right but I put it on heavy duty and it's no longer heating again. I the heating element is intact, the DC47-00018A has continuity to it, but the DC47-00016A doesn't have continuity. Does the 00016A supposed to have continuity? Could the other possibility be the DC32-00007A thermistor? Is that supposed to have continuity? Please, advise. We have a family of 7 and the laundry is building. Thank you
Answer David, the thermal cut-off on the side of the blower housing, [DC47-00016A], should have continuity. The thermister, [DC32-00007A] should read resistance. It sounds like thermal cut-off has opened up again. If the heater gets too hot, it acts as a fuse and will open up, shutting off the heating element. The thermister located on the side of the blower housing reads the temperature inside the drum and tells the control board to turn the element on or off. Your venting is important as that if it is restricted, the airflow across the element is reduced and it gets too hot, therefore opening the high limit thermal fuse. Check your venting behind the dryer and access it from outside. With the dryer running, you should be able to feel al lot of airflow on the outside at the exit vent. Also, there is a high limit thermal fuse on the side of the heater box assembly you can check, if there is continuity, it is good, if it is open, it will need to be replaced. Bottom line, airflow is critical in the proper operation of a dryer, with the thermister being replaced, the only things left are airflow and possibly a stickling relay on the main control board. Read More... Answered by AppliancePartsPros.com | Tuesday, February 4, 2020