Siemens Dishwasher Error E18

⚡ Quick Answer: The Siemens Dishwasher E18 error code signals a drainage issue due to insufficient or restricted water entering the appliance. This may prevent the wa... ✅ DIY Fixable

What Does Error E18 Mean?

The Siemens Dishwasher E18 error code signals a drainage issue due to insufficient or restricted water entering the appliance. This may prevent the wash cycle from starting or cause it to stop prematurely. Common causes include a blocked water supply, a kinked water supply hose, or a clogged water inlet filter. Observing unusual sounds from the pump can also indicate this problem.

Common Symptoms:

  • Dishwasher fails to fill with enough water
  • Wash cycle cannot start or stops early
  • Potentially low household water pressure indicated

Possible Causes

  • Restricted or blocked water supply (water inlet) (high)
  • Kinked or bent water supply hose (medium)
  • Clogged water inlet filter or bent supply hose filter (medium)

How to Fix Error E18

DIY Fix Check water supply and hose

  1. Turn off dishwasher and water supply
  2. Inspect water supply hose for kinks, bends or blockage
  3. Check that the household tap supplying the dishwasher is fully open and not calcified

DIY Fix Clean water inlet filter

  1. Turn off the water supply
  2. Disconnect the water supply hose from dishwasher inlet
  3. Clean any debris or scale from the small filter screen at the hose connection
  4. Reconnect hose securely

Technician Only Inspect and test water inlet valve and flow sensor

  1. Disconnect dishwasher from power and water supply
  2. Access and test the water inlet valve for proper operation and electrical functionality
  3. Check the internal flow meter or sensor for faults that misreport water flow

Parts needed: water inlet valve, flow meter or sensor

🛑 When to Call a Pro:
  • If cleaning and hose checks do not resolve; if water inlet valve or sensor appears defective; if household water pressure is normal but no water enters

Technical Specifications

wattage 50W
component Drain Pump
resistance 30-50 ohms
part_number Siemens 00649905
voltage_rating 230V AC

Common Questions

What does E18 error mean on Siemens Dishwasher?

The E18 error indicates a drainage issue, often due to insufficient or restricted water flow into the dishwasher.

Can I fix Siemens Dishwasher E18 error myself?

Yes, you can check the water supply hose for kinks and clean the water inlet filter to potentially resolve the issue.

How much does it cost to fix E18 error?

Repair costs typically range from $50 to $150 for parts, with additional charges if professional labor is required.

When should I call a technician for E18?

Call a technician if cleaning the filter and checking the hose do not fix the issue, or if the water inlet valve seems defective.

Sources & References

Data last verified: 2026-01-25

User Comments (0)

Share your experience or solution below.

Be the first to comment!