What to check, in order
- Clean the drain pump filter
Follow the directions in your Owner's Manual. Restrictions are often caused by loose items caught in the filter.
- Check the drain hose
Make sure it isn't pushed too far down into the standpipe. That can stop the Combo draining properly.
When to call an engineer
If the filter and the hose are clear and 18 keeps coming back, GE recommends scheduling a repair.
Good to know
- When the Combo senses a restriction in the drain area, it may also scroll a message asking you to check and clean the pump filter.
Checked against
Last reviewed September 2026. Manufacturers update their pages, and your manual is the final word.