Step-by-Step DIY Fix Guide
- SAFETY: Turn off the water tap.
- Clean the inlet hose mesh filter.
- Confirm water tap is fully open.
- Check hose for kinks.
- Reconnect and run a test cycle.
If it's still not filling correctly
- If normal household water flow looks good but the code returns, the inlet-valve or fill-sensing path becomes more likely.
- If airflow still seems weak after the basic checks, the fan path or a deeper obstruction becomes more likely.
- If the warning returns immediately after a clean restart, the sensor or wiring path becomes more likely than a one-time glitch.
What This Error Means
F29 on your Bosch washing machine means: Same cause class as E17/F17 — the machine cannot fill. F29 often indicates AquaStop specifically or a flow meter issue on certain models. The machine detects this condition via its sensors and stops the current cycle to prevent further damage. The error will remain until the underlying cause is resolved.
The most frequent cause is aquastop safety valve activated. Work through the causes listed below in order — the first cause is the most likely and the most straightforward to check.
Many cases of F29 can be resolved with DIY troubleshooting. Follow the steps below — if the error persists after all steps, a technician will be needed. The guide below specifies clearly at which point to escalate.
The drum will remain empty or partially filled, and the wash cycle will not progress. Turn off the water tap before inspecting the inlet hose or filters.
Most Likely Cause by Symptom
The Bosch washing machine may stop, pause, or refuse to complete the cycle normally.
Likely cause: AquaStop safety valve activated
Check first: SAFETY: Turn off the water tap.
Performance may drop because airflow, filtering, or draining is restricted.
Likely cause: Clogged inlet hose mesh filter
Check first: Clean the inlet hose mesh filter.
The warning may return immediately because the appliance is detecting an internal fault.
Likely cause: Water tap off or pressure too low
Check first: Confirm water tap is fully open.
Common Causes
- AquaStop safety valve activated
- Clogged inlet hose mesh filter
- Water tap off or pressure too low
- Flow meter fault on models equipped with one
What Not to Do
- Do not run cycles repeatedly with F29 active — restricted water damages the heating element
Model and Display Variation Notes
Model-family notes
- Bosch washing machine 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
- AquaStop hose ($25–$65)
- Flow meter ($20–$50)
Manual and model check
Check your exact model and manual before ordering any Bosch washing machine 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
Filters clean, supply confirmed — F29 persists
How to Prevent It Recurring
- Clean inlet filters every 6 months
Related Error Codes
E17
Bosch washing machine error E17 usually means the washer cannot get enough incoming water to fill normally.
F17
Same fault as E17 — water inlet issue on F-code model variants.
E:30 / -10
The washing machine cannot fill with water properly. Multiple causes are possible — the display may also show a faucet icon alongside this code.
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.
Model coverage note: Bosch washing machine 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.