E05 Moderate Easy DIY

Bosch Dishwasher E05 — Overfill / float switch tripped

Bosch Dishwasher · Error code E05

What E05 Means

The anti-flood float in the base of the dishwasher has risen, triggering the safety drain. Water level higher than expected.

Most Likely Fix

Overfill - too much water in tub

PartWater inlet valve (stuck open)
Typical cost$35-75
Difficultymoderate
Time45 min

Tools: screwdriver, adjustable wrench, towel

Diagnose first: Inlet valve diaphragm worn and not closing fully; pressure switch can also misread level.

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If the primary fix doesn't resolve it:

PartPressure / float switch
Typical cost$25-50
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Symptoms

  • Drain pump runs continuously
  • Cycle will not start
  • Water visible in base pan

Common Causes

1
Leak inside the dishwasher

Door seal, hose clamp, or sump leaking into the base pan.

2
Inlet valve stuck open

Solenoid fails to close, overfilling the tub.

3
Float switch stuck up

Debris under the foam float in the base.

4
Drain restriction

Slow drain causing back-up that triggers the float.

How to Fix It

  1. Power off the dishwasher at the breaker.
  2. Tilt the unit forward gently and let any water in the base pan drain into a towel.
  3. Inspect the base pan for the source of the leak.
  4. Check the foam float in the base for free movement.
  5. Test the inlet valve by listening for it to close at end of fill; replace if stuck.
  6. Restore power and run a Rinse cycle to verify.

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 E06 E06 — Door switch / lock fault E07 E07 — Drying fan fault

All Bosch codes → All dishwasher codes →

Verified against manufacturer documentation: bosch-home.com

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