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Brand: Samsung Dryer
Model Number: DV48H7400EW/A2
Main Symptom: Doesn’t heat
What happens & when: Dryer powers up and turns the drum but doesn’t produce heat
Error Code (if any): None
Parts or tests already tried: Watched the APP video and tested as instructed.
Photos / video link:
The unit would come on but the drum would not turn. Opened it up (after watching YT video @https://www.youtube.com/watch?v=pDGdhfSqbHk&t=274s) and discovered the belt had come loose because the idler pulley had been destroyed probably because a rear bulkhead roller had come apart. I replaced all for rollers and the idler pulley assembly. Upon reassembly, the powered up without error codes and the drum rotated; however, no heat was produced despite settings calling for heat and the unit running for 5-10 minutes.
I watched the APP video reference above and made all the checks suggested without finding a problem. In that video, however, there was no mention of the 2 parts attached to the rear side of the air duct that are attached to the wiring harness. I don’t know what these parts are. Are they thermal fuses? At any rate, I checked both for continuity. The part nearest the motor did not show continuity; the other one did.
The part that did not pass the continuity test has a clear window with what appears to be a tiny fuse with red ends. I cannot see whether there is a fusible link even with a magnifying glass.
Because all other parts have tested positively; including the PCB test and the thermistor test at connector CN4, I can only surmise that one of these part is bad. I need to know what these parts are and instructions on how to test them.