ADC 330 stack runs and runs and runs.....

[amartlock]

I went to the mat this morning on my way to work and realized I have an ADC 330 stack that both the top and bottom dryer just continuosly run. The display reads "8888" and continues to run (it must have run all night, I'll have to thank my cleaning lady for letting me know). I turned off the breaker which shut the dryer down and flipped it back on and both top and bottom just started running again.

My guess is its a bad pc board but I thought I'd run it by this forum for any other possibilities.

[Follow]

check reley inside computer.. tap on it, happened to me on single dryer. if that is.. change reley.

[MSKLAUNDRY.]

You have a bad board, no question about it.

[amartlock]

Without having switched out the board to confirm it's bad, that is what I suspect. It appears to me that the board is the only thing that is connected to both the top and bottom dryers of the stack, thus must be causing the problem since both are continuously running. Out of curiosity, is there any other part of the stack that is connected to both top and bottom (mechanical, electrical, or otherwise)?

[MSKLAUNDRY.]

They are pretty much independent except for the computer and common power connector. Otherwise you can run the top dryer while having the bottom dryers plug detached from the control box or you can even switch the connectors top/bottom. I do it all the time to check to see if problems are in the control box or in the dryers. Can't do it anymore with Phase 7 330's. ADC doesn't understand how helpful that diagnostic feature is.