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Error code

Bosch Dishwasher E30 — Code Meaning

The SPV4HMX14Q manual identifies E:30-00 as activation of the water-protection system and directs the user to turn off the water tap and call Customer Service. It does not identify a failed part or justify a reset. Confirmed only for the complete alternating E:30-00 display on Bosch SPV4HMX14Q, manual 9002038349_A, page 39. A bare E30, another suffix or another E-Nr does not establish this diagnosis.

Last updated: 21 September 2026

Quick answer

E30: Water protection activated when the full code is E:30-00

SeverityNot assessed

Meaning

Water protection activated when the full code is E:30-00

First safe check

Photograph the full display, including alternating characters and suffixes.

Stop if

The warning remains, the appliance is not operating normally, or the next step requires internal access.

Who to call

Contact Bosch support or a qualified appliance technician if the warning remains, the code is not explained in the matching manual, or any internal investigation is required.

Internal diagnosis and repair require a qualified professional. Follow only the model-approved user actions described below. Follow the model’s isolation instructions before permitted maintenance. Do not reach wet or damaged electrical parts to unplug the appliance.

What does this error code mean?

The SPV4HMX14Q manual identifies E:30-00 as activation of the water-protection system and directs the user to turn off the water tap and call Customer Service. It does not identify a failed part or justify a reset.

Confirmed only for the complete alternating E:30-00 display on Bosch SPV4HMX14Q, manual 9002038349_A, page 39. A bare E30, another suffix or another E-Nr does not establish this diagnosis.

The reported condition does not, by itself, establish which part needs replacement.

Why is this happening?

  1. The manufacturer describes: water protection activated when the full code is e:30-00. The underlying cause requires assessment on the actual model.

Safe next steps

  1. Photograph the full display, including alternating characters and suffixes.
  2. Record the full model from accessible paperwork or an external label; do not dismantle the appliance to find it.
  3. Match the source below to your exact model manual before following any code-specific instructions.
  4. For the documented E:30-00 display, turn off the water tap if safely accessible and contact Bosch service. Do not restart the dishwasher to clear this protection warning.
  5. If water is escaping, stop use and close the water supply if safely accessible. Isolate power only from a dry, safe position; do not reach through pooled water.
  6. If the warning persists, the model is uncertain or the next step requires internal access, stop and contact Bosch support or a qualified appliance technician.

Can I fix this myself?

No

Use only the external checks described here. The code alone does not justify a parts replacement.

Safety boundary: Do not remove panels, test wiring, force a locked door or bypass a protective device.

What not to do

  1. Do not remove panels, test wiring, force a locked door or bypass a protective device.
  2. Do not repeatedly reset an unexplained or returning warning, or buy parts solely from this display.

When to call a technician

Contact Bosch support or a qualified appliance technician if the warning remains, the code is not explained in the matching manual, or any internal investigation is required.

Safety warning

Stop if there is leakage, a burning smell, unusual heat or electrical tripping. Keep clear of wet electrical connections. Do not remove panels, test wiring, force a locked door or bypass a protective device.

Useful hub links

Bosch appliance error code hub

Browse all Bosch appliance error code clusters.

Bosch Dishwasher error code list

See every dishwasher code in this cluster.

Other Bosch dishwasher codes

Bosch Dishwasher E15 — Code Meaning

Leak protection activated by water in the base

Bosch Dishwasher E22 — Code Meaning

Drainage restriction involving the filter, pump cover or drain path

Bosch Dishwasher E24 — Code Meaning

Drainage restriction

Bosch Dishwasher E25 — Code Meaning

Drain-pump or pump-cover obstruction

Relevant guide

When to Call an Appliance Engineer

Use the exact manual for permitted owner checks. Recurring faults, unsafe symptoms and work inside the appliance need appropriate professional help; emergencies need immediate action.

Frequently asked questions

Does E30 identify a failed part?+

No. A code describes a reported condition, and the correct model documentation is needed before diagnosis.

Does this apply to every model?+

Confirmed only for the complete alternating E:30-00 display on Bosch SPV4HMX14Q, manual 9002038349_A, page 39. A bare E30, another suffix or another E-Nr does not establish this diagnosis.

Sources and review status

Model dependent · Last reviewed 21 September 2026

source checked
  • Bosch SPV4HMX14Q manual 9002038349_A, page 39

    model manual · other · checked 21 September 2026

    Water protection activated when the full code is E:30-00. Confirmed only for the complete alternating E:30-00 display on Bosch SPV4HMX14Q, manual 9002038349_A, page 39. A bare E30, another suffix or another E-Nr does not establish this diagnosis.