Bosch Dishwasher Error Code E18: How to Fix It

Q: What causes Bosch dishwasher error code E18?

Error E18 is caused by insufficient water flow to the dishwasher. Common causes include low water pressure, kinked supply hoses, clogged filters, blocked inlet valves, or issues with your home's water supply.

Q: Can I run my Bosch dishwasher with error E18?

No, you should not run your dishwasher with error E18. This error indicates insufficient water supply, which means dishes won't be cleaned properly and the dishwasher may not function correctly.

Q: How do I reset my Bosch dishwasher after fixing E18 error?

After resolving the water flow issue, press and hold the Start button for 3-5 seconds to reset the dishwasher. You can also unplug the unit for 5 minutes, then plug it back in to clear the error code.

Q: Why does my Bosch dishwasher show E18 intermittently?

Intermittent E18 errors often indicate partial blockages in filters or supply lines, inconsistent home water pressure, or a water inlet valve that's beginning to fail but hasn't completely stopped working.

Q: How much does it cost to fix Bosch dishwasher error E18?

Simple fixes like cleaning filters cost nothing. If the water inlet valve needs replacement, expect $100-200 for parts and labor. Professional diagnosis typically costs $75-100 if no repairs are needed.

Abstract

Bosch dishwasher error code E18 indicates that water flow to your dishwasher is too low or insufficient. This high-severity error means your dishwasher cannot fill properly with water, preventing it from washing dishes effectively.