Though most of us don't have these in our RVs, GE is recalling about 2.5 million dishwashers.
The effected units are found under the GE name brand as well as many others GE OEMs for (like Kenmore for example).
Info on the recall can be found here:
GE Dishwashers May 2007 Recall
It is suggested that if your unit is on the recall list that you not use it until it is repaired for free under the recall. I've heard that if you choose not to fix it, GE will give you a $150 credit toward the purchase of a new GE dishwasher.