On the covered GE dishwasher platform, 999 means GE states a 999 code means the control needs to be reset, and that the dishwasher will not start or run while it is displayed. The display may also flash. GE lists the affected models as GDT225SGLBB, GDT225SGLWW, GDT225SSLSS, PDT145SGLBB, PDT145SGLWW, PDT145SSLSS, ZDT165SILII and ZDT165SSLSS. First, check the full model number against GE's list before using this procedure.
Differential
Likely causes of “GE dishwasher code 999”, and how to tell them apart
- 1
A control that needs a reset
What separates it 999 shows and the display flashes, which points to a control that needs a reset
How to confirm GE says the control needs to be reset on the listed models
- 2
A possible leak on a Floor Protect with Alert model
What separates it 999 shows and the dishwasher will not start, which points to a possible leak on a Floor Protect with Alert model
How to confirm GE says on models with Floor Protect with Alert it may indicate a possible leak; contact service
- 3
A power interruption that upset the control
What separates it 999 appears after an outage or a surge and the panel is unresponsive
How to confirm Use the reset GE describes for your model and see whether 999 clears
Before you touch a setting
Record this first — changing settings destroys the evidence
- The exact characters shown on the display: 999
- The full model number, since the reset applies to listed models
- Note whether the display flashes before you start troubleshooting
- Whether water is on the floor
Try in this order
0 of 5 completedWhat to do first
ReversibleCheck the full model number against GE's list before using this procedure.
Correct only the documented fault domain
ReversiblePress and hold Cycle Select and Start together for 5 seconds, or until the 999 clears; a blank display or a different number is expected. Press any button to finish the reset — 130 or another cycle time may appear.
Hold the pads
ReversibleSimultaneously press and hold the Cycle Select and Start pads for 5 seconds or until the 999 code goes away.
Accept the blank
ReversibleA blank display or another number appearing is acceptable.
Complete the reset
ReversiblePress any button to finish; 130 or another cycle time may appear and the dishwasher will function normally.
Model-specific
What is true of this model and not of its siblings
- Displayed as
- 999.
- Parts named
- Control.
Stop boundary
When this stops being a self-service repair
- !Check for water first if the model has Floor Protect with Alert
Evidence ledger
Sources behind this answer
Where the manufacturer's article stops. The listed models are GDT225SGLBB, GDT225SGLWW, GDT225SSLSS, PDT145SGLBB, PDT145SGLWW, PDT145SSLSS, ZDT165SILII and ZDT165SSLSS.
Exact questions
Common questions
What does 999 mean on a GE dishwasher?+
GE states a 999 code means the control needs to be reset, and that the dishwasher will not start or run while it is displayed. The display may also flash. GE lists the affected models as GDT225SGLBB, GDT225SGLWW, GDT225SSLSS, PDT145SGLBB, PDT145SGLWW, PDT145SSLSS, ZDT165SILII and ZDT165SSLSS.
Which models does the reset apply to?+
GE lists GDT225, PDT145 and ZDT165 models.
How long do I hold the pads?+
5 seconds or until the code goes away.
Will the reset erase my settings?+
It only clears the control, and you will need to reselect your cycle.