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BOSCH All indicators flashing

Bosch Cooktop Error All indicators flashing: All Cooktop Indicators Flashing — General Fault

Clear meaning, realistic next steps, and safe guidance without turning the page into a long repair manual.

What it means

All display indicators on the cooktop are flashing simultaneously, signaling a general system fault. This typically indicates an internal error that the cooktop's self-diagnostic system has detected but cannot pinpoint to a single component.

Severity

Medium - some user checks may help, but repeated faults often need service.

Can you fix it yourself?

Partial — start with DIY steps

Most likely cause

Transient electronics fault caused by a brief power interruption or voltage spike

Estimated time for safe first checks: 2–5 min for power reset; Professional service if recurring.

Step-by-Step DIY Fix Guide

  1. SAFETY: Do not touch the cooking surface — indicators may be flashing because a zone is still hot.
  2. Turn all zone controls to the off position.
  3. Disconnect power at the circuit breaker for 60 seconds, then restore — this clears transient faults in the vast majority of cases.
  4. If the cooktop starts normally, test each zone at a low setting.
  5. If all indicators flash again on startup, call Bosch Customer Support at 1-800-944-2904.

If the door warning comes back

  • If the door closes normally but the warning keeps returning, the latch or switch path becomes more likely than a simple alignment issue.
  • If airflow still seems weak after the basic checks, the fan path or a deeper obstruction becomes more likely.
  • All indicators flash on every power-on after a 60-second power reset

What This Error Means

Error All indicators flashing on your Bosch cooktop means: All display indicators on the cooktop are flashing simultaneously, signaling a general system fault. This typically indicates an internal error that the cooktop's self-diagnostic system has detected but cannot pinpoint to a single component. The appliance's self-diagnostic system has flagged this condition and may have disabled the affected zone or function to prevent damage or unsafe operation.

The most frequent cause is transient electronics fault caused by a brief power interruption or voltage spike. Work through the causes and fix steps below in order — starting with the simplest check.

Some cases of All indicators flashing can be partially addressed by the homeowner. The steps below cover the DIY checks — if they do not resolve the condition, a technician is needed.

Indicator conditions like child lock and demonstration mode are common sources of confusion because they cause the cooktop to appear completely unresponsive. They are never a sign of hardware failure — the fix is always a button sequence or power reset.

Most Likely Cause by Symptom

This display item is often a status or indicator message rather than a true fault.

Likely cause: Transient electronics fault caused by a brief power interruption or voltage spike

Check first: SAFETY: Do not touch the cooking surface — indicators may be flashing because a zone is still hot.

Common Causes

  • Transient electronics fault caused by a brief power interruption or voltage spike
  • Liquid infiltration from a boil-over reaching internal electronics
  • Control board fault preventing normal startup
  • Control lock activated in an unexpected way, causing all indicators to flash

What Not to Do

  • Do not attempt to use the cooktop with all indicators flashing — you cannot safely confirm which zone is active or at what power level

Model and Display Variation Notes

Model-family notes

  • Bosch cooktop display wording and code formats can vary by series.
  • If your model behaves differently, check the owner manual before trying any deeper maintenance step.

Display and panel differences

  • Panel wording can vary by series, so confirm the exact code pattern before buying parts.

Parts, Tools and Service Options

Common parts

  • Cooktop control board if board fault is confirmed ($80–$200)

Manual and model check

Check your exact model and manual before ordering any Bosch cooktop parts.

Service option

Bosch service visit if the warning returns after the basic checks are complete.

Suggestions in this section are organized to support the troubleshooting flow first. Any future affiliate relationships should be disclosed clearly.

When Not to Keep Troubleshooting

All indicators flash on every power-on after a 60-second power reset

How to Prevent It Recurring

  • Wipe up liquid spills from the cooktop surface and control area immediately — liquid is the leading cause of cooktop electronics faults
  • Use a surge protector on the cooktop circuit to prevent voltage spikes from triggering control board faults

Related Error Codes

Extra notes

  • This page is based on Bosch support material and stays conservative where model-specific guidance may vary.
  • The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.

Source and model notes

Last reviewed: 2026-04-07

Based on: Based on Bosch support material and edited into consumer-safe guidance for the exact code family on this page.

View Bosch US Official

Model coverage note: Bosch cooktop code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.

Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.

Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.