We had the F70 error code. Tried unplugging for a while, but when plugged back in, it was "really dead" (no light, just a beep when I pushed buttons). Had Sears repair out and they said we needed to replace the main control board. Complete estimate for the repair was over $600 (about what I paid for it new). We declined and paid the $75 for the service call. Repairman said he wasn't supposed to do this, but the part we need is 8183196. (this is actually a Whirpool part, so I was a little confused at first until I saw it was actually used in many different lines, like Kenmore and Maytag) We could probably find one on online and replace it ourselves cheaper.
Searched online: www.Searspartsdirect.com = $391.34, www.partstore.com =$260.06, www.easyapplianceparts.com =$219.20, www.topappliance.com =$207.48 (new) and CGI rebuild +$154.32 (but none in stock). Ordered the part from topappliance.com and received it in 3 days. My husband and son replaced it in about 30min, but did have some difficulty reaching everything they needed in a pretty tight area. But, part was put in 2 days ago and works like new (so far). Hope this is helpful.