I have successfully repaired my Samsung dryer multiple times....but almost yearly, a thermal fuse and or thermostat or element fail, and I am back in the dryer again. Seriously, like 8 repairs in 6 years. This doesn't seem right. A series of repairs was due to partially blocked duct, but I'll often fix one thing and then have an immediate failure on another part. Most recently the thermostat failed so I changed it along with the fuse, but two loads later the fuse failed. Any advice? Is this rate of repair common for Samsung?