GE · Dishwasher
GE Dishwasher C14 Error Code
Turbidity or pressure sensor invalid signal
What this error means
C14 maps to pressure or turbidity sensor sending invalid data—similar to GE PrS code family.
How C14 is detected
When C14 appears on a GE dishwasher, the control board has confirmed that water did not leave the machine within the programmed drain window. On GE GDT655SSJSS, GE GDF630PSMSS, and similar variants, the drain pump runs for a fixed interval—often three to seven minutes on washers and dishwashers—while a pressure switch or turbidity sensor verifies the tub or sump is empty. If water remains, the cycle stops to prevent spin with a full tub or overflow on the next fill.
Most C14 calls are resolved without parts: clean sensor lens in sump. Restricted drain paths mimic pump failure because the impeller spins against a blocked hose or filter. Document whether the pump hums audibly during the drain step; a humming pump with no water movement points to a clogged filter or kinked hose, while silence may indicate a failed pump motor or loose wiring at the harness.
After clearing blockages, run a short cycle and listen at the drain hose for steady water flow. If C14 returns on the next load with a clean filter and straight hose, measure resistance at the pump motor connector per the service manual for your model before ordering a replacement pump assembly.
Common causes
- Grease on optical sensor
- Pressure hose leak
- Failed sensor module
- Cloudy sudsy water
Step-by-step fixes
- 1Clean sensor lens in sump
- 2Check pressure hose
- 3Reduce detergent
- 4Power-cycle 30 seconds
When to call a technician
Clean sensor with recurring C14 needs sensor assembly.
Affected models
- GE GDT655SSJSS
- GE GDF630PSMSS
- GE GDT225SSLSS
Prevention & maintenance
- Clean drain filters and hose terminations monthly on high-use dishwashers to prevent C14 from lint and food debris buildup.
- Record when C14 appears in the cycle and whether it clears after a 60-second power reset on your GE dishwasher—that detail speeds diagnosis if you call service.
- Keep the model and serial number from the rating plate when ordering parts for C14; GE uses multiple revisions with different harness lengths and board firmware.
- Photograph wiring connector orientation before disconnecting any component while troubleshooting C14; reversed plugs on pumps and valves cause immediate repeat faults.