hogs said:
Snowy Rivers...
So My Supply fan surges abit so I guess that is no worries then... MIne surges abit no matter what speed I have the Auger feed set at... But I can only have my Convection fan set on low, Once I move the fan speeed off Low the motor sppeds up for a split second or two.. and then starts to rattle like crazy so for now I just leave the thing on Low fan setting werid wd. like to get that fix..but don`t want to spend big bucks on a Board when it may be something else though..
Uncovered this out there on WWW:
c&p
These "IC's" U4 & U5 are not of a common breed. It is a ZIP style package more than anything. It has 8 normal pin size legs with 2 larger for a total of 10 leads. The larger I belive are an SCR of some sort that control the switching of these blower motors. I assume by the high failure rate of these they were underdesigned initially and unable to handle the high current/heat load. Hence the reason they now have a totally new and differently designed control board. I will take pictures of of the IC removed and post them. I also plan to cut one open just for fun...
Whitfield pellet stove this is a pellet stove like the one I need to repair... the electronics come into play by taking the signal from the heat sensor to control the auger for the pellets to drop into the burn pit, the electronics control the fans, both the burn fan and the exhaust fan...<hr></blockquote>I was searching for another controller for my Whitfield Advantage II stove and found this message thread. Both my combustion and convection fans intermittently stop, with the auger continuing to dump pellets into the burn chamber.
The controllers were manufactured by SSAC, who is in the business of producing cheap solid state OEM timers and controllers. I'm familiar with them, since AC power plant controllers I had at one place where I worked, once were also manufactured by SSAC...and they didn't work properly, either.
You can forget about getting a schematic for the Whitfield controller, since SSAC shaves off component markings and pots everything they can to prevent us from doing exactly what you want to do.
The local dealer who installed the pellet stove (I bought it with the house a few years ago) has been somewhat uncooperative to resolve this particular issue. I can't even get him to tell me how much a new controller costs so I can order it and pay him for it.****What appears to be happening here is that suddenly the fans abruptly stop, with what appears to be a DC braking voltage applied, while the auger motor continues to turn.
**** That looks like one or more triac switches failing for half the 60 cycle power wave form, leaving an imperfect DC voltage applied to the AC motors (they hum when this happens).**** There's no other place in the stove where DC voltage can be applied. If SSAC used triac in their controllers, it means they may have used cheap ones which are now failing at high-temperature, then returning back to "normal" when the stove cools down.
end c&p
Also, I found the various wiring diagrams out there...PM me and I'll fix you up.
Not currently an owner of a pellet stove...but have a lead on a used Whitfield Advantage II T insert...hence my research lately.