Recently my hairdryer stopped working properly. While drying my hair, the fan would suddenly turn off after a minute or two (it seems as if a thermal switch in series with the motor cut the current to it). It looked as if the heating coils were still powered, they heated up quickly with no more airflow and started to glow red, before also being cut by there own thermal switch. After that it would take about half an hour before I could use the hairdryer again. However, the behavior was the same again, with the fan turning off after short use.
I disassembled the hairdryer and found that it contained the motor shown below. It turns out that this is a fairly common motor for haidryers, a U5215 universal commutator motor. When disassembling the hairdryer, the motor was still warm (about half an hour after I was using it and it shut down). It tried to remove any dust that had accumulated (assuming that it was causing additional friction or blocking cool air), but unfortunately that did not help and the motor is still overheating after a minute of use.
Is there anything I can do to make this motor work properly again? Should I replace the motor (motors of this type seem to be available online)? Or should I simply buy a new hairdryer?