#1 Considering your thorough original post I'm sure you were careful to change all three parts in the LA-1053 set at the same time... but it's always worth mentioning.
#2 The placement of a thermal fuse is carefully engineered to be a tattle-tale in case of an airflow restriction because dryer fires are such a major cause of house fires... there is really nothing else that's going to take that fuse out but the question is WHY is the air stalling as it goes by the fuse.
It really comes down to these things, in order of likelihood:
- Lint clogging the vent.
- Soft aluminum vent got crushed.
- Animal nest clogging the vent.
- The actual animal clogging the vent. This usually causes the issue to be intermittent depending on if your squirrel, bird or what not is in there at the time you try to run the dryer. If you don't have a "bird cage" or the flapper on the outside wall tube outlet isn't closing all the way, this is likely to be your cause in February, unless you live south of the equator.
- Solid steel vent tube came off inside the wall or attic, filled the wall / area around it with lint or dog / cat / wife hair & has now backed up to the tube outlet and clogged it too. (This is a favorite in Veterinarian offices, the tube comes off in the drop ceiling and fills the void with dog hair.
- Worn out blower fan. You'd know this already. It makes one hell of a racket when it starts or stops but quiets down after the first 5 seconds or so... but it's actually not moving air as well as it should.
- Something dragging on the belt / drum / motor that is preventing the drum from reaching 50-60 RPM. The blower fan and belt pulley are on opposite ends of the motor shaft so if the motor gets slowed down, so does the fan and thus the air stream.
- You really pissed off the dryer gods and need to go burn some incense.