Causes of dryer tripping circuit breaker?

[Paperdoc]

^^^ Dry humour!

 

[[DHT]Osiris]

^^^ Dry humour!

Nicely done sir.

 

[mrblotto]

Any update?

 

[Fanatical Meat]

I can't say they all do, but every dryer I have ever serviced or worked on has had a temperature sensor on the heating duct work.

View attachment 40746

Yeah this. My current dryer and another I had at an apartment each hadn’t some kind of sensor to know when the vent is clogged and reduced the power & heat as a response.
I figure it was a two reason thing:
A) Safety
B) Become a pain in the ass so you are encouraged to clean the damn vent

 

[Sukhoi]

It has to be something shorting; likely the motor. Anything that increases the resistance of the system, like loose electrical connections and/or aluminum wiring, would reduce the current. Does high heat running empty flip the breaker? That will tell you if there's somehow a short in the heating circuit or if it's related to the load on the motor.

Unlikely it's an AFCI breaker as AFAIK you can't get them dual pole and 30+ A. Someone correct me if I'm wrong, as I want a Murray/Siemens one for my 55 yr old aluminum wiring to my dryer.