Does this guide apply to your appliance?

Match the brand, device type and complete display code. The same code can mean something different on another product family or market; a series name does not confirm every model in that series.

Model and family references in this record:

F18E3200E32-00

Likely causes

  • The dishwasher water tap is closed, restricted, jammed, or heavily scaled.
  • The inlet hose is kinked, crushed, or sharply bent.
  • The inlet-hose filter is clogged, where the model permits owner cleaning.
  • Household water flow is too weak; the cited Siemens manual uses approximately 10 L/min as a reference minimum.
  • The dishwasher-side inlet system or AquaStop assembly may be faulty if the error returns after the external checks.

What to try

Check the water tap and visible inlet hose

Easy
  1. Stop the dishwasher and switch it off.
  2. Confirm that the dishwasher’s water tap is fully open.
  3. Check the tap for obvious restriction, jamming, or heavy scale; do not force a damaged tap.
  4. Inspect the visible inlet hose for kinks, crushing, or sharp bends, and carefully restore a clear route if it can be done without moving or dismantling the appliance.
  5. Run the dishwasher again only after the hose and tap are secure. If E18 returns, stop troubleshooting and arrange qualified service.

Source for this check: www.siemens-home.bsh-group.com

Check household water flow

Moderate
  1. Close the dishwasher water tap and disconnect the appliance from power before handling the connection.
  2. Using a suitable container, check the flow from the water supply in accordance with local plumbing practice.
  3. Compare the result with the Siemens manual’s reference of approximately 10 L/min from an open supply.
  4. If the flow is clearly weak, contact a qualified plumber rather than modifying the dishwasher.
  5. If household flow is adequate but E18 remains, have the dishwasher inspected by a qualified technician.

This step is marked caution. Stop if you are not qualified to continue.

Source for this check: media3.bsh-group.com

Clean the inlet filter only when the exact model manual permits it

Moderate
  1. Find the dishwasher’s E-Nr/model number and confirm the filter-cleaning procedure in its model-specific manual.
  2. Switch the appliance off, disconnect power, and close the water tap.
  3. If the manual authorizes owner cleaning, disconnect the inlet connection as instructed and remove only the accessible inlet filter.
  4. Clean the filter gently with a small brush; do not damage the mesh or dismantle the AquaStop assembly.
  5. Do not immerse an AquaStop hose in water because it contains an electrical valve.
  6. Reassemble the connection securely, reopen the tap, restore power, and test the dishwasher.
  7. If E18 returns, or if the connection leaks, switch off the tap and power and contact qualified Siemens service.

This step is marked caution. Stop if you are not qualified to continue.

Source for this check: www.siemens-home.bsh-group.com

Arrange professional service when external checks do not resolve E18

Professional

This is a service referral, not a do-it-yourself repair procedure.

  1. Record the E18 code and the dishwasher’s exact E-Nr/model number.
  2. Tell Siemens service or a qualified appliance technician that the tap, visible hose, household flow, and any model-approved filter check have been completed.
  3. Do not dismantle the inlet valve, AquaStop, internal plumbing, or other appliance components.
  4. If there is leakage, no water enters, or the appliance-side inlet system appears faulty, keep the water tap closed and disconnect power where safe until help arrives.
  5. Use authorized repair personnel and original parts where required by the model documentation.

This step is marked professional. Stop if you are not qualified to continue.

Source for this check: www.siemens-home.bsh-group.com

The code returned or the check did not help?

Avoid repeated resets and do not select a replacement part from the code alone. Record the exact code, full model number, when it appeared, and the checks you tried with their results. Share these details with the manufacturer or service technician.

Disconnecting power does not establish that internal components are safe to touch. This guide does not authorize opening electrical components or bypassing safety devices.

Related error codes

Siemens E16Siemens dishwasher E16: filling-system or water-inlet fault Siemens E20Siemens Dishwasher Error Code E20: Circulation Pump or Rinsing Circuit Fault Siemens E25Siemens Dishwasher Error Code E25: Drain Pump Blocked or Drainage Fault Bosch E09Troubleshooting Bosch Dishwasher Error Code E09 (Heating Circuit Failure) Bosch E12Bosch Dishwasher Error Code E12: Limescale Build-up Bosch E14Bosch Dishwasher Error Code E14: Water Inflow/Flow Meter Issue

Useful guides

Water left in the dishwasher: safe checks and when to call for serviceA small amount of clean water near the filter may be normal. Water across the tub floor, dirty standing water,... Dishwasher Not Drying? Check Settings, Loading, and Safe MaintenanceUse these owner-safe checks to improve drying, understand what moisture is normal, and know when to call a tec... Dishwasher Filter Care: What You Can Clean—and When to Call a TechnicianLearn how to identify a removable dishwasher filter, clean it safely, and recognize when a pump problem needs...

References