E16 — Unintended water inlet / inlet valve stuck open
Per Bosch's official US error-code page, E16 and E17 are grouped together: there is an issue with water flowing into the dishwasher or the filling system, and water may not be able to enter the dishwasher.
- Keep using it?
- Limited use only
- DIY difficulty
- Moderate
- Verified against
- bosch-home.com ↗
How to fix it
- Shut off the water at the supply valve under the sink.
- Power off at the breaker.
- Drain any water from the tub (run a manual drain or sponge it out).
- Replace the AquaStop inlet hose assembly (contains the safety valve).
- Inspect the tub-side inlet valve and replace if it leaks through.
- Restore water and power; verify no fill occurs with the door open.
Why it happens
Typical signs: Water in tub before cycle starts · Drain pump runs at start of cycle · E16 appears when door opened
- Inlet valve stuck open Diaphragm worn or debris holding solenoid valve open.
- AquaStop solenoid failed Safety valve at the supply end stuck open.
- Mineral buildup in valve Hard water deposits keeping valve from sealing.
- Bad inlet valve harness Short causing valve to be energized continuously.
Parts you may need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More Bosch dishwasher codes
Frequently asked questions
What does the E16 code mean on a Bosch dishwasher?
Per Bosch's official US error-code page, E16 and E17 are grouped together: there is an issue with water flowing into the dishwasher or the filling system, and water may not be able to enter the dishwasher.
What causes the E16 code on a Bosch dishwasher?
Inlet valve stuck open: Diaphragm worn or debris holding solenoid valve open. AquaStop solenoid failed: Safety valve at the supply end stuck open. Mineral buildup in valve: Hard water deposits keeping valve from sealing.
Is it safe to keep using a Bosch dishwasher with a E16 error?
Limited use only. This is rated a serious-severity fault.
How do I fix E16 on a Bosch dishwasher?
Shut off the water at the supply valve under the sink. Power off at the breaker. Drain any water from the tub (run a manual drain or sponge it out).
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: bosch-home.com.