Westinghouse Dishwasher Error F9

⚡ Quick Answer: The Westinghouse dishwasher F9 error indicates a malfunction in the drainage system, often leading to improper water drainage and unusual noises durin... ✅ DIY Fixable

What Does Error F9 Mean?

The Westinghouse dishwasher F9 error indicates a malfunction in the drainage system, often leading to improper water drainage and unusual noises during operation. This can result in standing water at the end of a cycle and poor cleaning performance. Common causes include blockages in the drain pump, filter, or hose.

Common Symptoms:

  • Dishwasher stops mid-cycle with F9 displayed
  • Water not draining properly
  • Standing water at cycle end
  • Poor cleaning performance

Possible Causes

  • Drainage blockage (filter/hose/pump) (medium)

How to Fix Error F9

DIY Fix Check and clear drainage path

  1. Turn off and unplug the dishwasher.
  2. Remove and clean the dishwasher’s bottom filter of debris.
  3. Inspect the drain hose for kinks or blockages; clear as needed.
  4. Check the sink’s drain if shared with the dishwasher.

Technician Only Inspect and replace diverter or flow control valve

  1. Access the internal flow control / diverter assembly.
  2. Test the valve for correct movement and electrical continuity.
  3. Replace the diverter/flow control component if faulty.

Parts needed: Diverter valve / flow control assembly, Associated seals/gaskets

🛑 When to Call a Pro:
  • If the error persists after clearing blockages
  • If internal components need testing or replacement
  • If there is evidence of leaks or electrical faults

Next step

Choose the next step for F9

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Check during diagnosis

Most relevant component to inspect

Drain Pump

Pumps waste water out of the appliance during the drain cycle.

Typical part-only price
$35 - $80
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Also check
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Other components that may be involved

Check these only if your diagnosis points to them.

Possible related component

Drain Hose

Carries waste water from the drain pump to your home's standpipe or sink drain.

$15 - $30 · Easy · 15-30 mins

Check fit & price

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Technical Specifications

wattage 50W
component Drain Pump
resistance 10-15 ohms
part_number WDW-PUMP-001
voltage_rating 120V AC

Common Questions

What does F9 error mean on westinghouse dishwasher?

The F9 error indicates a drainage malfunction, often causing water not to drain properly.

Can I fix westinghouse dishwasher F9 error myself?

Yes, you can check and clear the drainage path, including the filter and hose.

How much does it cost to fix F9 error?

Repair costs for the F9 error are moderate, including parts and labor.

When should I call a technician for F9?

Call a technician if the error persists after clearing blockages or if internal components need testing.

Data last verified: 2026-07-25

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