Product review (5 stars): When you have changed the high limit cut off thermostat ...
When you have changed the high limit cut off thermostat or fuse (DC96-00887A), if it blows out immediately, it means the heater chamber temperature is higher than designed, which means the vent (incoming and outgoing) is clogged up, which made internal temperature extremely high thus making high limit switch blow out. Please check the vents and clear all things that may clog up vents (clothes or falling leaves in case of outgoing vent). After you have ensured this, you can install new thermostats.

Please note if the high limit switch blows out in the above case, it means the thermostat worked well as designed, otherwise there would have been a trouble with the dryer such as fire or something!

This is the conclusion between factory engineer and Samsung about the issue. So, the case is to be attributed to the internal temperature, not to the thermostats. I hope consumers are not misled by 1 star feedback.