The short answer
F29 on this washing machine means the filters in the water connection or the protection hose are blocked, or the water pressure is too low — that is what the manufacturer published for it, and no more. It will not fill properly until the restriction is cleared, so there is little point running it. One of the checks below is an owner check, and the rest of the work is behind a panel.
Error codes
Reference| Code | Meaning |
|---|---|
| F29 | The filters in the water connection or AquaStop hose are blocked or the water pressure is too low. |
What the machine does alongside the code
- Other taps in the house are fine — Good pressure elsewhere puts the restriction in the machine feed rather than the mains.
- You can hear the valve open with little water arriving — That separates a commanded valve from a supplied one, which is the whole question here.
What triggers F29, most likely first
- A loaded filter screen at the water connection — It goes first because the description names it and because it is the usual finding: the screen catches grit from the supply by design, and once loaded it passes a trickle instead of a fill.
- Low pressure at the appliance — The appliance needs the pressure the manufacturer specifies; a shared feed or a mains problem drops it below that and the fill times out.
- A safety device that has shut the water off — Last: where the appliance has a supply-side protection device, it stops the water deliberately, and the code is then the consequence rather than the fault.
Check in this order, and why
- Have the filter screens at the connection inspected — Turning the water off is part of that, which is why it is not a bare-hands check.
- Look along the inlet hose behind the appliance — A tight bend or a crush at the back does not show from the front.
- Test the pressure at a nearby tap — This tells you whether the restriction is in the house or in the appliance feed.
- Body: Compare the appliance against the house before touching either: a nearby tap answers in seconds whether this is a supply problem at all.
The reset, then the owner-safe checks
- Compare with a nearby tap during the fill — Run the tap while the appliance tries to fill; poor flow at both puts the fault in the house supply.
About 10 min
- Open the tap fully, check the pressure at a nearby tap during the fill and straighten the inlet hose — Between them these three eliminate the low-pressure half of the description before any part is touched.
About 20 min
- Cut power for a minute and restart the cycle — Clears the stored code so you can see whether the fill is genuinely still failing.
About 5 min
- STOP HERE — the filter screen and the valve are service items — Both mean disconnecting water and opening the appliance, so this is where an owner check ends.
Before anything is opened
Safety
Unplug the machine or switch off its breaker before any panel comes off — a capacitor can hold a charge after the power is off. Close the supply tap before touching a hose, expect standing water when a filter comes out, and never work round the door interlock.
When this is a service call rather than a reset
Call at once if water is escaping anywhere, if a supply-side safety device has triggered, or if the appliance fills when it should not.
Neighbouring codes on Bosch washing machines
What this page does not cover
This reading applies to the Bosch washing machine line as a whole, not to one family or model. It does not cover what differs between model lines — wiring colours, connector positions, part numbers and service-mode sequences — which are in your own model manual and which a technician matches to the rating plate rather than to this code. Where a family- or model-specific page for this code exists, it is linked from the code index below and it is the more specific answer.
Links: - [Bosch washing machine error codes](/blog/bosch-washer-error-codes)
Where to go next
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
