What the appliance detected
Detected condition
The dishwasher reports that draining is taking too long or not happening correctly.
What may contribute
Possible causes
- A clogged filter or accessible drain path.
- A kinked or improperly installed drain hose.
- A disposer knockout plug or air-gap restriction.
Start conservatively
Safe preliminary checks
Work in order and stop whenever a step is not supported by the documentation for your model.
Record the code and avoid water hazards
- Write down F9 E1 before clearing it.
- Disconnect power before reaching near standing water or the filter area.
Check accessible drain items
- Clean the dishwasher filter if the model manual supports that homeowner maintenance.
- Inspect the visible drain hose, disposer connection, and air gap for obvious restriction.
Stop before hidden plumbing or wiring
- If the dishwasher still will not drain, request service.
- Do not remove panels or access the pump or wiring.
Actions not recommended
- Do not reach into standing water while power is connected.
- Do not open pump, wiring, or control areas.
- Do not use chemical drain products in the dishwasher unless the manual specifically allows it.
When to stop and request service
- F9 E1 remains after accessible filter and drain-path checks.
- The drain hose, disposer connection, or air gap cannot be checked safely.
- Pump or internal diagnosis would be needed.
Documented source
Official information reviewed
Our summary is based on manufacturer support material and stays within the limits of that material.
Whirlpool Product Help
Dishwasher Error Codes - Reading
Source reviewed by Appliance Help HQ: August 17, 2026.
Appliance Help HQ is an independent informational site and is not affiliated with or endorsed by Whirlpool.
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