Re: Control Board Failure

I didn't see other complaints of this burnt resistor, but maybe I just didn't use the right search criteria. There is an overwhelming volume of control board failure complaints for this machine and a class action suit about it (see my second post) related to the door latch which is directly driven by this circuit. All the appliance forums give the pat answer to replace the whole board and usually the door latch assembly too (which they sell). I suspect this in particular is common because the serviceman at Miller's Coral told me he once repaired a Neptune...

Re: Control Board Failure

It was hot enough to melt (or almost so) the solder on the opposite side of the board (see picture in previous post). But I guess these things are probably put together at much higher temperatures than that.

(and gold) My digital meter from Harbor Freight says it's 67 ohms (after I subtract the 0.8 ohms in the test leads). The second band from the left (Q2 end) had a little patch of green on the underside, hence my suggestion that it might be 65 (but it might have been 45 or 85 before the heat damage). Rechecked it again on my BK analog meter,...

Re: Control Board Failure

Q2 has an open emitter. I think the Q2 circuit is for voltage or current regulation, please correct me if I am guessing incorrectly. So can I substitute any NPN with similar hFE and as good or better power dissipation?

What about the value of R102? Do you think it was 67 (or 65) ohms before it cooked? The band that is light brown now has the same lustre as the gold bands on the other resistors, however the band next to it had a patch of green on it's bottom side, which I don't think makes sense in this circuit if the light brown band was...

Re: Control Board Failure

I was not trying to be vague or mysterious, but I have a bad habit of overwhelming people with information (and scaring them off). Having been given the “easy way out answer” on 5 previous forums I was trying to provide no more information than necessary to answer just one question, namely if anyone was willing to see this to the end. Also, I was afraid if I mentioned "flood" I would get the standard answer. I paid almost $1300 for this and it matches my dryer. I'm not ready to throw in the towel that easy. Your forums have no “Miscellaneous”...

Is anyone up for a real troubleshooting chalenge?

I didn't know where to put this, but I thought you TV geeks might want to test your skills. I suspect problems with a digital controller board of a major item in the home (not a TV or computer), but I am almost certain that the problem originated with one of the peripheral devices (which has been acting up for years). This board stores events and they all point to this same peripheral.

I have tried forums that specialize in this item, but they all want to take the easy way out and have me replace the whole item, or...