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GE GDT665SGNBB Error Codes

The GE GDT665SGNBB is a 24-inch GE top-control built-in dishwasher with stainless steel tub, Dry Boost with fan assist, 3rd rack, Sanitize Cycle, Steam+Sani option, and 16 place settings. This page lists all known error codes with direct links to detailed troubleshooting guides.

CodeFault DescriptionSeverity
C1Drain pump overtimeMedium
C2Extended drain cycleMedium
C3Drain failureHigh
C4Overfill faultMedium
C6Water temperature too lowMedium
C7Water temperature sensor inoperativeMedium
PFPower failureLow

The GDT665SGNBB is part of the GE lineup. GE GE dishwashers display error codes on the control panel along with an audible alert. Pressing Cancel/Reset typically clears the alarm while preserving the fault code for diagnosis.


Last Updated: March 2026 · GE GDT665SGNBB GE Dishwasher