We have a 4 yr old Classic Bay Insert. Recent full, end-of-season cleanings was by our dealer two springs ago and the same by me last spring. When turn on now we get no response whatsoever; no call light, no fans. When unplug/plug in power get no fan. Fuse is ok and batteries are ok, both were checked. Pulled Insert out and checked motors/fans etc for obstructions. Manual and QF phone support say to reset snap disk #3. Took off housing inside hopper and found that snap disk #3 is not flipped. I can't push it in any further as it is already tight against its seating, so I am assuming that it can't, in fact, be "reset." Correct? Stove was left plugged in all summer. However, NE Ohio had severe drought season with virtually no elect storms. No other electronics in house have been fried. Reading previous discussions here and elsewhere suggests that the control box may be next possible culprit to check. But I have no idea how to proceed next save for calling the dealer out. I know little about electrical components and am complete newbie at trying to diagnose and check electrical or control panel-type stuff. Any help would be greatly appreciated, but please keep in mind my inexperience when providing instructions. Detailed descriptions would be most helpful. Thanks a lot!