Searching for old Pellet stove information

[Loring]

I am looking for a schematic with component values or some way to determine what component is bad. The stove started operating on full feeder drive and can only e stopped by turning feed speed control to off.

Any leads as to how I might obtain a schematic or the control unit module part would be greatly appreciated.
Stove information is:
Installed October 1990,
Horizon Pellet Insert
Model HR-2 Classic
Serial Number:WH-002086
Purchased from Fireplace Distributers of California Inc.

 

[tug686spd]

At the bottom of this thread is a download able copy.

https://www.google.com/url?sa=t&sou...g8qVvFi9_aB2vKLMg&sig2=piA1wE0jmsgT_5rx72CxcQ