The 999 code on listed GE dishwasher models means the control needs a reset; Floor Protect with Alert models treat it as a possible leak.
Model compatibility: GE reuses codes across series and model years, so 999 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
The control needs a reset on the listed models; on Floor Protect with Alert models it signals a possible leak and the dishwasher will not start.
When 999 appears on the control panel, the dishwasher will not start or run, and the display may flash. On the models below, it means the control needs to be reset.
Models covered by the reset
GDT225SGLBB, GDT225SGLWW, GDT225SSLSS, PDT145SGLBB, PDT145SGLWW, PDT145SSLSS, ZDT165SILII and ZDT165SSLSS.
Clearing the code
Press and hold the Cycle Select and Start pads together for 5 seconds, or until 999 disappears.
A blank display or a different number is fine.
Press any button to finish the reset. A cycle time such as 130 may appear.
The dishwasher is then ready to use and works normally.
Floor Protect with Alert models
On a model with the Floor Protect with Alert feature, 999 means a possible leak has been detected. The dishwasher will not start, and the support article says to contact service.
Codes with a similar fix
Cutting power also helps with C3 when the dishwasher will not drain, and with C7 for the water temperature sensor circuit.
GE dishwasher service in Los Angeles
If 999 returns or your model has Floor Protect with Alert, call (310) 620-9683 about GE dishwasher service in Los Angeles. Tell us the exact model number and whether the 5-second reset made any difference.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your GE appliance?
Book a specialist visit for a clear estimate and approval before any repair.
