Error code · Dishwasher

GE Dishwasher Code 999: Possible Leak, or a Control Reset

High · stop use, call now

Code: 999
Appliance: Dishwasher
Brand: GE
Warranty: 30-day workmanship

What 999 means

On GE dishwashers, the display reading 999 has two meanings depending on the model. On Floor Protect with Alert models it warns of a possible leak, and the dishwasher will not start until it has been looked at. On the models covered by a reset procedure, such as the GDT225SGLBB, GDT225SSLSS, PDT145SGLBB, PDT145SSLSS and ZDT165SILII, the same characters mean the control needs a reset. You will see 999 on the panel and no wash cycle running.

Common causes of 999

Leak detected under the tub on a Floor Protect with Alert model
Control left in a stuck state after a power event on a reset-type model
Water in the base pan from a hose, seal or door gasket
Control lockout that will not clear without the reset sequence

✓ One safe check you can try

1. Look under and around the dishwasher for water. If any is present, turn off the water supply to the dishwasher and keep it unplugged. 2. For a reset-type model with no water, hold Cycle Select and Start together for about 5 seconds until 999 clears. 3. Press any button. If 999 returns, stop using the machine.

! Why to stop there

Seeing 999 clear after the reset does not tell us whether a leak ever existed.
Water in the base pan needs its source traced, because a slow leak can damage the floor.
We check hoses, seals and the pump area, and give a written price before any repair.

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Dishwasher codes

Smart Assist light redGE Dishwasher Smart Assist Light Red: A Potential Problem Was Detected Smart Assist light yellowGE Dishwasher Smart Assist Light Yellow: A Notification Is Waiting in SmartHQ Start light flashingGE Dishwasher Start Light Flashing: Door Opened or Cycle Interrupted Low Rinse AidGE Dishwasher Low Rinse Aid Indicator: Refill the Dispenser C6GE Electronic Dishwasher Code C6: Incoming Water Below 120F C7GE Electronic Dishwasher Code C7: Temperature Sensor for the Wash Water, Not Responding C8GE Electronic Dishwasher Code C8: Detergent Cup Cannot Open Fully Cup OpenGE Dishwasher Message Cup Open: Close the Detergent Cup

999999 questions

What is the 999 display telling me on a GE dishwasher?

On Floor Protect with Alert models it means a possible leak was detected. On the listed models with a reset procedure, it means the control needs a reset to clear.

How do I reset a 999 on my dishwasher?

On the models with a reset procedure, hold Cycle Select and Start together for about 5 seconds until 999 clears, then press any button. If water is under the unit, do not reset it.

Can I run the dishwasher after 999 clears?

Only if you found no water. If it was a leak alert or 999 returns, stop using it, because continued running can spread water and damage cabinets and flooring.

Book a visit

Still seeing 999?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 547-5545