Hello, all.
As I have been struggling to solve my 6 blink shut-down problem with the Accentra-2, I have removed and reinstalled the feeder motor several times. The motor and the mounting bracket in my stove (stove manufactured in 2005) are designed with rubber grommets supposedly for vibration isolation. Well, with all those remove and reinstall cycles the rubber grommets have become torn and the plastic/nylon core inside was poking through. Along with this a strange noise has developed while the feeder motor is on. A kind of a POP sound every now and then. I took the back cover off and saw that the chain was jumping teeth on the sprockets sometimes during feeder operation. I figured I should really replace those worn out mounting grommets since their lack of integrity allowed the motor to move in the bracket and cause chain slop and skip. I went to my local farmers' supply place that is also a Harman dealer/installer and stock some parts. I asked about the grommets and the guy spent quite some time on his computer and phone looking for them. Finally he told me that Harman changed the design of the motor mount to eliminate the rubber grommets and mount the motor directly to the mounting brackets without the rubber isolation. This was done to address the very issue I was experiencing. The loud banging as the chain jumped teeth on the sprocket as the grommets became worn out. So, he sold me a new motor bracket for $15 that has smaller holes and slots for the screws without the grommets. I replaced the bracket yesterday and no more banging/skipping.
Here are the pictures of the two brackets. The one that has the "S" stamped into it and has larger bolt openings is the old one and the one with "X" stamp and smaller bolt openings is the new one. This is another one of those upgrades that should probably be incorporated into all the older stoves out there and it is not very expensive at $15. There are only two bolts holding the bracket to the feeder, so it's not a big job.
As I have been struggling to solve my 6 blink shut-down problem with the Accentra-2, I have removed and reinstalled the feeder motor several times. The motor and the mounting bracket in my stove (stove manufactured in 2005) are designed with rubber grommets supposedly for vibration isolation. Well, with all those remove and reinstall cycles the rubber grommets have become torn and the plastic/nylon core inside was poking through. Along with this a strange noise has developed while the feeder motor is on. A kind of a POP sound every now and then. I took the back cover off and saw that the chain was jumping teeth on the sprockets sometimes during feeder operation. I figured I should really replace those worn out mounting grommets since their lack of integrity allowed the motor to move in the bracket and cause chain slop and skip. I went to my local farmers' supply place that is also a Harman dealer/installer and stock some parts. I asked about the grommets and the guy spent quite some time on his computer and phone looking for them. Finally he told me that Harman changed the design of the motor mount to eliminate the rubber grommets and mount the motor directly to the mounting brackets without the rubber isolation. This was done to address the very issue I was experiencing. The loud banging as the chain jumped teeth on the sprocket as the grommets became worn out. So, he sold me a new motor bracket for $15 that has smaller holes and slots for the screws without the grommets. I replaced the bracket yesterday and no more banging/skipping.
Here are the pictures of the two brackets. The one that has the "S" stamped into it and has larger bolt openings is the old one and the one with "X" stamp and smaller bolt openings is the new one. This is another one of those upgrades that should probably be incorporated into all the older stoves out there and it is not very expensive at $15. There are only two bolts holding the bracket to the feeder, so it's not a big job.
