Magnum 3500 pellet stove

[Timbo2017]

I got a magnum 3500p pellet stove and it will start up and run for 15-20 minutes then it goes out. I turned the top knob off and then back on and the auger motor starts up and burn another 20 minutes then goes back out.
I cleaned it all out and checked all sensors and fans and flu going out. All seems fine.
Any ideas what can be causing this to happen ?

 

[Mt Bob]

Low limit switch not shutting/closing on heat rise,would be my guess.

 

[Timbo2017]

I took all the sensors out used a lighter and heated then up they clicked then clicked back off when cooked down all 3 of them. Do you think it could still be a sensor

 

[heat seeker]

It's quite possible that the switch could click, but still be electrically defective. If you have an ohmmeter, you can check it electrically.
Have you tried jumping the switch in question - using all safety precautions, of course?

 

[Mt Bob]

Are you turning fuel stir on after stove is lit?

 

[Timbo2017]

Thanks so much. It was a sensor.