GE Dishwasher 999 Error Code
On eight listed GE dishwasher models 999 is cleared with a quick reset of the control; on Floor Protect with Alert units it warns of a possible leak.
Model Reference
GE GDT655SMJES Repair
A slate-finish GE top-control dishwasher that leaks or throws a leak message needs the water source found before it runs again.
Model number
GDT655SMJES
About this model
Model overview
A leak is a reason to stop
If you see water around the GDT655SMJES, stop the cycle, turn off the breaker and mop the floor before anything else. Water under a dishwasher can run into subfloor or the cabinet beside it, and in a San Francisco apartment it can reach the unit below. Do not run it again to see whether it leaks.
What GE says about leak messages
GE documents a LEAK DETECTED message: a possible leak was found, and on leak-detection models the cycle is cancelled. The suggested owner response is to contact service. That is different from a code such as C3, where the machine is simply not draining. The GE Dishwasher LEAK DETECTED code explains how to separate them.
Where the water may come from
| Where you see it | Look at | Notes |
|---|---|---|
| Front of the door, low | Door gasket, overfilled detergent, a stuck float | Wipe the gasket; excess suds spill out |
| Under the machine, center | Inlet or drain connection | Needs access we do not recommend for owners |
| Beside the machine | Hose fittings under the sink | Dry them with a towel and watch |
Our post on water on the floor in front of a GE dishwasher goes through these cases in order.
Model notes
GDT means top-control: the buttons are on the upper edge of the door. Reading from the right, ES is the slate color code. The model is current; check the rating plate for the tub capacity. If the label shows other letters, it is another unit.
Before we arrive
Leave the breaker off if you saw active leaking. Take a photo of any wet spot and of the display. Tell us what the unit did first: fill, wash, drain. If the leak message appeared on a clean, dry floor, say so, because that changes how we look at the sensor side.
The plan stays simple: we diagnose, write up the estimate and wait for your yes. See GE Dishwasher Repair and the GE Dishwashers page for more.
Model-information disclaimer. Confirm your exact model number and specifications with your appliance documentation before booking a repair. Model pages are for identification and compatibility reference.
FAQ
Frequently asked questions
We would not. A message that clears can still mean water got where it should not. Stop and let us find the source.
GE says a possible leak was detected. Water can collect in the base pan without reaching the floor. That is a service call, not a reset.
The last letters are a finish code. ES is slate in GE's scheme.
Yes, closing the valve under the sink is an outside step. Leave the panels alone.
Diagnostics
Error codes for this appliance
Fix it right
Repair service
Dishwasher
Repair for GE and GE Profile dishwashers that will not drain, fill, clean or start, across San Francisco and the Bay Area.
Models
Other models
Book a repair
Tell us what’s wrong — we’ll take it from there
Share a few details and we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.
Phone
(415) 729-2045
Hours
Mon–Sat: 8:00 AM – 7:00 PM
Service area
San Francisco Bay Area, California