Kenmore Washer F9 Error Code: Causes and Fixes

Editorially reviewedUpdated 2026-02-20

Quick answer: Drain performance low

What you’ll notice

Drain cycle exceeds expected duration; machine judges drain performance inadequate.

Kenmore Washer Code F9 medium severity
Kenmore models: Kenmore washers are manufactured by Whirlpool (model prefix 110.xxx) or LG (796.xxx) — identify the platform before ordering parts. 110.xxx Whirlpool-based: Duet front-loaders have a filter behind the lower-right panel; top-loaders have no user filter. 796.xxx LG-based: filter behind the lower-left front panel.

Common causes

  • Partially blocked pump filter reducing flow
  • Drain hose routed too high, increasing back-pressure
  • Pump impeller starting to wear

Step-by-step fix

  1. Clean the pump filter (see OE steps above).
  2. Ensure the drain hose peak is no higher than 100 cm from the floor.
  3. Run a drain-only cycle and listen for the pump — a healthy pump sounds steady, a worn one may pulse or whine.

Tools you may need

Shallow traySmall brush

Prevention

  • Clean the filter monthly.
  • Do not route the drain hose higher than specified in the installation manual.

When to stop DIY

If drain performance is slow even after clearing the filter, the pump is wearing and should be replaced before it fails completely.

FAQ

What does F9 mean on Kenmore washer?

F9 usually indicates: Drain performance low.

Can I keep using the appliance with F9?

Use caution. Severity is medium. If drain performance is slow even after clearing the filter, the pump is wearing and should be replaced before it fails completely.

How long does this fix usually take?

Typical first-pass troubleshooting takes 10–20 minutes.