Written by
Marcus Delaney Appliance Care EditorPublished October 26, 2026
VERIFIED
Error code999
ApplianceDishwasher
Which meaning applies to you
Listed models: the control needs a reset, and the reset below clears it.
Floor Protect with Alert: the dishwasher has picked up a possible leak and will not start. Contact service.
Symptoms with 999 on screen
The dishwasher does not start or run while 999 is shown, and the display can flash.
Control reset for the listed models
This reset is for the GDT225SGLBB, GDT225SGLWW, GDT225SSLSS, PDT145SGLBB, PDT145SGLWW, PDT145SSLSS, ZDT165SILII and ZDT165SSLSS.
Hold the Cycle Select and Start pads down together for 5 seconds, or until 999 goes away.
If the screen turns blank or shows another number, that is fine.
Press any button to complete the reset. A cycle time such as 130 may show up.
After that the dishwasher is back to normal operation.
Other codes cleared by cutting power
Turning off power is also the first move for C3 (no draining) and C7 (water temperature sensor circuit).
Dishwasher service in San Francisco
For a 999 that keeps coming back, or a Floor Protect with Alert model reporting a possible leak, reach our San Francisco and Bay Area team at (415) 729-2045 and mention dishwasher repair. Have the full model number ready and say whether the 5-second reset changed anything.
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
On the listed models 999 means the control must be reset; with Floor Protect with Alert it means a possible leak and the dishwasher will not start.
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.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your GE appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
