American stove 4840 help

[Buckshutem]

ive been using my wall hung 4840 for several years with almost no issues.
It shut down yesterday and I did a complete cleaning. The exhaust chimney was a bout 85 plugged with ash. I cleaned it all up.
Replugged and restarted my stove. I walked away n cleaned up. Returned 10 minutes later n pressure switch was flashing. Trouble shot that n think it was repaired. Plugged in and hit start. I didn’t here the exhaust blower kick on as I believe it used too in the beginning ( I believe the exhaust blower begins the safety tests). About 10 minutes later the vacume light flashes.

I also emptied the hopper n refilled with sifted pellets. I don’t think it’s pellets or auger. These new pellets did however plug exhaust up in two months. I vacume combustion chamber ever 2-3 because of excessive ash

 

[Ssyko]

you cleaned all the path's from the burn pot to the combustion blower? I would ck your combustion blower, either dirty or failing

 

[Buckshutem]

you cleaned all the path's from the burn pot to the combustion blower? I would ck your combustion blower, either dirty or failing

Thank you! When I get done work that’ll be the next thing a try. Do you know what blower kicks on when you first turn the unit on? Because I recall hearing something when I worked before it ever ignited and whatever that sound was I don’t hear anymore