Bosch · Dishwasher Moderate

E08 — Low water level / heater protection

E08 is not in Bosch's official US dishwasher error-code list (which covers E01-E27, E0100-series, and E2000/E3000/E6000/E8000/E9000-series codes, but not a bare E08). The 'low water level / heater protection' explanation below is not confirmed by Bosch's US consumer page — verify against your model's manual before assuming this specific cause.

Keep using it?
Yes, with caution
DIY difficulty
Easy

How to fix it

  1. Clean the fine and coarse filters at the bottom of the tub.
  2. Inspect the air gap (if installed) at the sink for debris.
  3. Verify the drain hose has a proper high loop above the drain inlet.
  4. Clean the inlet valve screen.
  5. Run a Rinse cycle and watch for normal fill volume.

Why it happens

Typical signs: Cycle stops early · Heater not engaging · Wash arms barely spin

  • Slow inlet fill Restricted inlet valve or screen reducing fill volume.
  • Air-gap blockage Clogged air gap at the sink causing siphon during fill.
  • Drain check valve stuck open Water siphons back out during fill.
  • Sump filter debris Fine mesh blocked, water sits above filter not flooding sump.

More Bosch dishwasher codes

E01 E01 — Control board fault E02 E02 — Heating element / NTC sensor fault E03 E03 — Water not heating E04 E04 — Water flow / flow meter fault E05 E05 — Overfill / float switch tripped E06 E06 — Door-Closure or Aqua (Turbidity) Sensor Fault

All Bosch codes → All dishwasher codes →

Frequently asked questions

What does the E08 code mean on a Bosch dishwasher?

E08 is not in Bosch's official US dishwasher error-code list (which covers E01-E27, E0100-series, and E2000/E3000/E6000/E8000/E9000-series codes, but not a bare E08). The 'low water level / heater protection' explanation below is not confirmed by Bosch's US consumer page — verify against your model's manual before assuming this specific cause.

What causes the E08 code on a Bosch dishwasher?

Slow inlet fill: Restricted inlet valve or screen reducing fill volume. Air-gap blockage: Clogged air gap at the sink causing siphon during fill. Drain check valve stuck open: Water siphons back out during fill.

Is it safe to keep using a Bosch dishwasher with a E08 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix E08 on a Bosch dishwasher?

Clean the fine and coarse filters at the bottom of the tub. Inspect the air gap (if installed) at the sink for debris. Verify the drain hose has a proper high loop above the drain inlet.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.