Harman Invincible Won't turn off

[redsoxbob]

I have a Harman Invincible Series that worked fine for 14 seasons, now it won't turn off and the temperature control doesn't seem to do a thing. The stove runs until it is out of pellets. The only way to turn it off is to take the pellets out of the hopper and let it run out. Help! What could be wrong?

Thanks!

 

[Lousyweather]

https://www.hearth.com/talk/threads/45729/

 

[summit]

esp probe (probable), or the micro switch on the slider yoke (more likely).

 

[djarseneault]

esp probe (probable), or the micro switch on the slider yoke (more likely).

ESP.
If it was the micro switch you would get an error blinking on the status light.