After power failure alarm wont go off and key pad is out.cheked your forum and found a similar problem but there was no solution. please if someone has figuered it out by now HELP! Thanks in advance. George
Hi George,
The problem can be a bad turbidity sensor (#321 at the diagram) or a bad control board. There is a very small chance for the keypad to be bad as well.
You can check the turbidity sensor for continuity across the terminals 1 & 4. If there is no continuity then the sensor is bad. In such situation it’s time for a new dishwasher because this part is no longer available.
If the sensor is good, replace the control board.
Here are the breakdown diagrams and Parts for GE PDW9880J00SS Dishwasher - AppliancePartsPros.com
Gene.