Pellet delivery fluctuation

[pitt800]

Im working on a englander 25 pdvc pellet stove. I was called because the customer said they needed a new combustion motor. After testing the motor, which was good, the determination was made the control board was bad. I had a used control board which i replaced, after a day the customer called and said the flame goes down and almost dies out and then a flame gets higher and continues low then high..They like running it on 3 so i watched the lower auger deliver the pellets and it will push alot of pellets out on a turn then the next turn it may push 3 or 4 out the the next turn alot more and then a large group. Due to the pellet delivery being like that the flame goes up and then almost dies out.....Any help would greatly be appreciated....

 

[muss]

Im working on a englander 25 pdvc pellet stove. I was called because the customer said they needed a new combustion motor. After testing the motor, which was good, the determination was made the control board was bad. I had a used control board which i replaced, after a day the customer called and said the flame goes down and almost dies out and then a flame gets higher and continues low then high..They like running it on 3 so i watched the lower auger deliver the pellets and it will push alot of pellets out on a turn then the next turn it may push 3 or 4 out the the next turn alot more and then a large group. Due to the pellet delivery being like that the flame goes up and then almost dies out.....Any help would greatly be appreciated....

My stove did that the 1st year I had it. Turned out to be fines were clumped up the chute. Shoved a dowel up & down the chute & put the vacuum hose up there. Result............ nice steady feed . Goodluck

 

[rich2500]

I have seen that happen with pellet brands that don't have consistent size pellets