ERROR CODEF173Diagnostic reference

Miele · Dishwashers

Miele dishwasher F173: restricted water supply

THE SHORT ANSWER

Restricted water supply

Miele F173 concerns restricted incoming water, a dirty inlet filter or inadequate supply flow.

First safe check

Check the supply faucet and whether other demand reduces water flow.

Applies to

Miele dishwashers covered by the cited USA support page. Follow the exact model manual.

Before you start

The inlet housing contains an electrical valve. Never immerse it; disconnect power and close the faucet before filter access.

Go to safe checks

WORK THROUGH THE BASICS

Safe troubleshooting checks

0 of 3 checked

Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.

  1. Miele recommends prioritizing water intake where flow is inadequate. Have persistent supply problems assessed.

    What to note

    The dishwasher receives an adequate supply.

  2. Switch off, unplug and close the faucet. Follow the illustrated filter procedure; rinse the removed filter, then correctly reinstall both filter and seal before reconnecting.

    What to note

    Filter and seal are reinstalled.

  3. Open the faucet slowly and check for dripping.

    What to note

    The connection stays dry before operation resumes.

YOUR NEXT DECISION

When to stop and get help

Ask a plumber about low supply flow; contact Miele if F173 persists.

Record what you see

Keep the full model number, exact displayed code, and your observations together for the next conversation.

Use the right support

Contact the manufacturer or a qualified appliance technician when the guide calls for service.

Miele support

THE EVIDENCE

Sources & verification

Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.

  1. Fault F173

    Miele USA · Manufacturer support · Checked

    Fault explanation and owner response — Miele dishwashers covered by the cited USA support page. Follow the exact model manual.

ErrHive is an independent information resource, not an authorized representative of Miele. Follow your appliance’s manual. Hazardous repairs belong with qualified professionals. Read our safety policy.