Gaggenau Dishwasher Error E18

⚡ Quick Answer: The E18 error code on your Gaggenau dishwasher indicates a drainage issue, often due to insufficient water supply. This may result in the dishwasher n... ✅ DIY Fixable

What Does Error E18 Mean?

The E18 error code on your Gaggenau dishwasher indicates a drainage issue, often due to insufficient water supply. This may result in the dishwasher not filling properly, leading to a halt during cycles. Common causes include a closed water tap, low water pressure, kinks in the inlet hose, or a clogged inlet filter. To address this issue, check your water supply and ensure the inlet hose is free of obstructions.

Common Symptoms:

  • Dishwasher does not fill with water or fills very slowly.
  • Error E18 displayed on control panel.
  • Dishwasher may stop before or during wash cycle due to insufficient water.

Possible Causes

  • Insufficient water supply (closed tap, low pressure, kinked hose, clogged inlet filter) (medium)
  • Faulty water inlet valve or AquaStop/inlet assembly (medium)

How to Fix Error E18

DIY Fix Check and restore water supply

  1. Ensure the water tap supplying the dishwasher is fully open.
  2. Inspect the water inlet hose for kinks or sharp bends and straighten if necessary.
  3. Turn off the water, disconnect the inlet hose, and clean the mesh filter at the connection if present.
  4. Turn on the water at the tap into a bucket to verify adequate pressure/flow.
  5. Reconnect everything securely and restart the dishwasher.

Technician Only Inspect and replace water inlet components

  1. Disconnect power and water supply.
  2. Remove and inspect the water inlet valve and AquaStop assembly for proper operation.
  3. Replace faulty inlet valve or AquaStop hose if testing shows malfunction.
  4. Verify water supply and re-test dishwasher cycle to confirm error resolution.

Parts needed: Water inlet valve, AquaStop inlet assembly/hose

🛑 When to Call a Pro:
  • If after checking and restoring water supply the error persists.
  • If water pressure to the machine is adequate but filling still fails.
  • If suspecting internal component failure (inlet valve, AquaStop) beyond user-level access.

Technical Specifications

wattage 50W
component Drain Pump
resistance 30-50 ohms
part_number GAG-DP12345
voltage_rating 230V AC

Common Questions

What does E18 error mean on gaggenau dishwasher?

E18 indicates a drainage issue due to insufficient water supply, causing filling problems.

Can I fix gaggenau dishwasher E18 error myself?

Yes, check the water supply, ensure the tap is open, and inspect the inlet hose for kinks.

How much does it cost to fix E18 error?

Repair costs for the E18 error range from €50 to €200 for parts, depending on the model.

When should I call a technician for E18?

Contact a technician if the error persists after checking the water supply or if internal components may be faulty.

Sources & References

Data last verified: 2026-04-23

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