GDT665SSNSS C6 error
Your GE GDT665SSNSS is showing C6. Before replacing parts, confirm the model tag matches GDT665SSNSS: Open the door and look on the inner door edge or left/right side of the tub opening. On this GE dishwasher, C6 means Incoming water is too cold — run the sink hot until it reaches at least 120°F, then restart. The steps below follow the field-service order for the GDT665SSNSS platform — not the generic GE C6 page. Cross-check part fit with GDT665SSNSS before ordering — use the model-specific parts diagram. If the code cleared after a reset but returned mid-cycle, treat that as a confirmed fault rather than a one-time glitch.
Fix steps
- Verify the model tag reads GDT665SSNSS — Open the door and look on the inner door edge or left/right side of the tub opening.
- Reset C6: unplug the dishwasher or switch off the breaker for 5 minutes, then restore power.
- Remove and clean the tub filter, confirm the inlet valve screen is clear, and check the door gasket before assuming a pump or valve failure for C6.
- Cross-check part fit with GDT665SSNSS before ordering — use the model-specific parts diagram.
- Run a test cycle after repair. If the code returns, use the compatible parts below or the full brand code guide.
Professional assistance recommended
This issue may be unsafe for DIY repair. Follow the safety guidance above and contact a qualified technician.
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
FAQ
What does C6 mean on a GE GDT665SSNSS?
Incoming water is too cold — run the sink hot until it reaches at least 120°F, then restart.
How do I reset C6 on a GDT665SSNSS?
Unplug the dishwasher or switch it off at the breaker for 5 minutes, then restore power and restart. If C6 returns on the GDT665SSNSS, the underlying fault is still present.
What part do I need for GDT665SSNSS C6?
Try the reset and troubleshooting steps first. C6 on the GDT665SSNSS is not always a failed part.
Is C6 on the GDT665SSNSS easy to fix?
Many owners fix this themselves with basic tools. Start with the reset and steps above, then check compatible parts below.