GE Dishwasher Cup Open error code

Cup Open is a reminder message, not a hardware fault. It means the detergent cup has not been closed, so the cycle will not start until detergent is added and the cup is latched shut. The machine is simply waiting on you.

Last updated: September 30, 2026

Quick answer: GE dishwasher error code Cup Open: reminder: add detergent and latch the dispenser cup. The most common cause is detergent cup left open before starting. Try this first — add detergent and latch the cup. If that does not clear it, override without opening the door.

What causes the Cup Open error?

  • Detergent cup left open before starting
  • Detergent never added to the cup

How to fix GE Cup Open — step by step

Work through these in order, from simplest and safest first. Stop as soon as the code clears.

  1. Add detergent and latch the cup
    Add detergent to the dispenser cup and press the cup closed until it latches, then start the cycle.
  2. Override without opening the door
    If the message appears after starting, you can press the START pad again without opening the door to override it.
Related guide: Dishwasher troubleshooting — fix common problems, with links to every dishwasher error code we cover.

When to call a technician

Stop and call a qualified technician if any of these apply:
  • The message persists even when the cup is latched closed

Frequently asked questions

Why does my GE dishwasher say Cup Open?

Cup Open means the detergent cup was never closed. Add detergent, latch the cup shut, and the cycle will start.

Sources

Every meaning and fix above was checked against official manufacturer documentation:

FixCode provides general troubleshooting information only — not professional repair advice. If you are unsure about any step, stop and call a qualified technician. Repairs done incorrectly can be dangerous and may void your warranty.

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